2003        Intership Safety and Operations Simplex               Marine    Great Lakes             USB       

2065        Business and Operational Simplex         Marine    Nationwide             USB       

2079        Business and Operational Simplex         Marine    Nationwide             USB       

2082        Intership Safety and Operations Simplex               Marine    Nationwide             USB        Also, intership non‑commercial fishing

2093        Intership Safety and Operations Simplex               Marine    Nationwide             USB       

2096        Business and Operational Simplex         Marine    Nationwide             USB       

2142        Intership Safety and Operations Simplex               Marine    Pacific Coast           USB       

2182        International Distress, Safety and Calling              Marine    Worldwide              USB       

2203        Intership Safety and Operations Simplex               Marine    Gulf of Mexico       USB        Also, intership non‑commercial fishing

2214        Intership Safety and Operations Simplex               Marine    Nationwide             USB       

2252        Navy FACSFAC Tactical Frequency    US Navy Virginia Capes, Virginia          USB        Giant Killer

2301        HF Network           National Communications System         Nationwide             USB       

2309        National Guard HF Network  US Army                Nationwide             USB/ALE               

2326        Operation Secure    Federal/State Government      Nationwide             USB       

2360        National Guard HF Network  US Army                Nationwide             USB/ALE               

2371        HF Network           Civil Air Patrol       Nationwide             USB       

2374        HF Network           Civil Air Patrol       Nationwide             USB       

2382        HF Network           National Communications System         Nationwide             USB       

2390        WWCR   Broadcaster             Nashville, Tennessee USA     AM         0500‑1100 UTC

2411        Operation Secure    Federal/State Government      Nationwide             USB       

2414        Operation Secure    Federal/State Government      Nationwide             USB       

2419        Operation Secure    Federal/State Government      Nationwide             USB       

2422        Operation Secure    Federal/State Government      Nationwide             USB       

2439        Operation Secure    Federal/State Government      Nationwide             USB       

2463        Operation Secure    Federal/State Government      Nationwide             USB       

2466        Operation Secure    Federal/State Government      Nationwide             USB       

2471        Operation Secure    Federal/State Government      Nationwide             USB       

2474        Operation Secure    Federal/State Government      Nationwide             USB       

2487        Operation Secure    Federal/State Government      Nationwide             USB       

2500        WWV/WWVH        Time/Frequency Standard       Ft. Collins, CO/Kauai, HI USA              AM        

2511        Operation Secure    Federal/State Government      Nationwide             USB       

2518        HF Tactical Network              US Navy Worldwide              USB       

2520        National Guard HF Network  US Army                Nationwide             USB/ALE               

2535        Operation Secure    Federal/State Government      Nationwide             USB       

2562        Hurricane Contingency Support Net      US Navy Gulf of Mexico       USB       

2569        Operation Secure    Federal/State Government      Nationwide             USB       

2587        Operation Secure    Federal/State Government      Nationwide             USB       

2627        National Guard HF Network  US Army                Nationwide             USB/ALE               

2635        Intership Safety and Operations Simplex               Marine    Worldwide              USB       

2638        Intership Safety and Operations Simplex               Marine    Nationwide             USB       

2658        HF Point to Point Network    FEMA    Nationwide             USB/ALE               

2670        Coast Guard Liaison/Maritime Safety Broadcast   Marine/US Coast Guard         Nationwide             USB       

2738        Intership Safety and Operations Simplex               Marine    Nationwide except Great Lakes              USB       

2801        Operation Secure    Federal/State Government      Nationwide             USB       

2804        Operation Secure    Federal/State Government      Nationwide             USB       

2807        HF Tactical Network              Justice/Treasury Departments               Nationwide             USB       

2812        Operation Secure    Federal/State Government      Nationwide             USB       

2830        Intership Safety and Operations Simplex               Marine    Gulf of Mexico       USB       

2851        NCA‑2 Major World Air Route Area/Flight Test  Aeronautical            North Central Asia/Worldwide               USB       

2854        SAT‑2 Major World Air Route Area     Aeronautical            South Atlantic         USB       

2863        Pacific VOLMET   Aeronautical            Pacific     USB       

2869        CEP‑1/2 Major World Air Route Area   Aeronautical            Central East Pacific USB       

2872        NAT‑C Major World Air Route Area    Aeronautical            North Atlantic        USB       

2878        AFI‑4 Major World Air Route Area      Aeronautical            Africa      USB       

2887        CAR‑A Major World Air Route Area    Aeronautical            Caribbean                USB       

2899        NAT‑B Major World Air Route Area    Aeronautical            North Atlantic        USB       

2932        NP‑3/4 Major World Air Route Area     Aeronautical            North Pacific           USB       

2944        SAM‑NW/SW/MID‑3 Major World Air Route Area            Aeronautical            South Atlantic/Middle East    USB       

2962        NAT‑E Major World Air Route Area    Aeronautical            North Atlantic        USB       

2971        NAT‑D Major World Air Route Area   Aeronautical            North Atlantic        USB       

2992        MID‑1 Major World Air Route Area     Aeronautical            Middle East            USB       

2998        CWP‑1/2 Major World Air Route Area Aeronautical            Central West Pacific               USB       

3004        NCA‑3 Major World Air Route Area/Flight Test  Aeronautical            North Central Asia/Worldwide               USB       

3016        NAT‑A/EA‑1 Major World Air Route Area          Aeronautical            North Atlantic/East Asia        USB       

3019        NCA‑1 Major World Air Route Area    Aeronautical            North Central Asia USB       

3023        Search and Rescue Coordination             Marine/Aeronautical               Worldwide              USB        Government shore, ships and aircraft

3026        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB       

3029        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB       

3032        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB       

3035        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

3038        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

3041        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB       

3044        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB       

3047        Aeronautical Off Route Frequency/Canadian Military Aeronautical Communications System            US Navy/Canadian Forces      Worldwide/Nationwide           USB       

3050        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

3053        Aeronautical Off Route Frequency        US Coast Guard      Worldwide              USB       

3056        Aeronautical Off Route Frequency        US Coast Guard      Worldwide              USB       

3059        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB/ALE               

3062        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB       

3065        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB       

3068        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB/ALE                Airborne Command Post Net (Z‑100)

3071        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB       

3074        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB       

3078        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB       

3080        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB       

3083        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

3086        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

3089        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

3092        Aeronautical Off Route Frequency/Canadian Military Aeronautical Communications System            US Navy/Canadian Forces      Worldwide/Nationwide           USB       

3095        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

3098        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

3101        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

3104        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

3107        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

3110        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB       

3113        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB       

3116        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB        Airborne Command Post Net (Z‑105)

3119        Aeronautical Off Route Frequency        US Coast Guard      Worldwide              USB       

3122        Aeronautical Off Route Frequency        US Coast Guard      Worldwide              USB       

3125        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

3128        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

3131        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

3134        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB/ALE                Airborne Command Post Net (Z‑110)

3137        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB/ALE                Air Force Scope Command

3140        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB       

3143        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB        Airborne Command Post Net (Z‑115)

3146        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB       

3149        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

3152        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

3166        HF Tactical Network              US Navy Worldwide              USB       

3170        National Guard HF Network  US Army                Nationwide             USB/ALE               

3170        Disaster Network   American Red Cross               Nationwide             USB       

3187        Space Shuttle SRB Recovery Net           NASA     Atlantic Ocean        USB       

3202        Disaster/Emergency Services Network   Federal/State Government      Nationwide             USB       

3210        WWCR   Broadcaster             Nashville, Tennessee USA     AM         0400‑0900 UTC

3215        WWCR   Broadcaster             Nashville, Tennessee USA     AM         0100‑0400 UTC

3253        HF Network           Interior Department                Nationwide             USB       

3274        National Guard HF Network  US Army                Nationwide             USB/ALE               

3281        Flight Test              Aeronautical            Worldwide              USB       

3295        Air Force HF Network           US Air Force           Worldwide              USB        Airborne Command Post Net (Z‑120)

3303        HF Emergency Net Transportation Department   Nationwide             USB       

3307        HF Tactical Network              US Navy Worldwide              USB       

3311        Air Force MARS Transcontinental Network         US Air Force           Nationwide             USB       

3330        CHU       Time/Frequency Standard       Ottawa, Ontario Canada         AM        

3341        HF Point to Point Network    FEMA    Nationwide             USB/ALE               

3345        HF Point to Point Network    Army Corps of Engineers       Nationwide             USB/ALE               

3360        HF Point to Point Network    Environmental Protection Agency          Nationwide             USB       

3365        Hurricane Contingency Support Net      NASA     Atlantic   USB       

3385        HF Point to Point Network    NASA     Nationwide             USB       

3413        CEP‑1/2 Major World Air Route Area/Europe VOLMET    Aeronautical            Central East Pacific/Europe    USB       

3419        AFI‑2 Major World Air Route Area      Aeronautical            Africa      USB       

3443        Flight Test              Aeronautical            Worldwide              USB       

3452        AFI‑1/SAT‑1 Major World Air Route Area          Aeronautical            Africa/South Africa USB       

3455        CAR‑B Major World Air Route Area    Aeronautical            Caribbean                USB       

3467        AFI‑3/MID‑2/SP‑6/7 Major World Air Route Area              Aeronautical            Africa/Middle East/South Pacific           USB       

3470        SEA‑1/3 Major World Air Route Area   Aeronautical            South East Asia      USB       

3476        NAT‑F/INO‑1 Major World Air Route Area        Aeronautical            North Atlantic/Indian Ocean  USB       

3479        SAM‑C/NE/SE/EUR‑A Major World Air Route Area          Aeronautical            South America/Europe            USB       

3485        EA‑2/SEA‑2 Major World Air Route Area/North Atlantic VOLMET Aeronautical            East Asia/South East Asia/North Atlantic             USB       

3950        Amateur Radio Hurricane Watch Net     Amateur  Worldwide              LSB         Alternate

4000        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4003        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4006        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4009        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4012        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4015        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4018        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4021        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4024        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4027        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4030        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4033        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4035        National Guard HF Network  US Army                Louisiana Statewide                USB       

4036        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4039        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4041        Navy/Marine Corps MARS HF Network             US Navy Nationwide             USB       

4042        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4045        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4048        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4051        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4054        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4055        HF Emergency Net Transportation/Federal Aviation Administration   Nationwide             USB       

4057        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4060        Maritime Simplex/Duplex (Shared)        Marine    Worldwide              USB       

4042        Navy/Marine Corps MARS ECOM      US Navy Nationwide             USB       

4101        HF Tactical Network              US Navy Worldwide              USB       

4125        Global Maritime Distress/Safety System               Marine    Worldwide              USB       

4146        Maritime Simplex   Marine    Worldwide              USB       

4149        Maritime Simplex   Marine    Worldwide              USB       

4153        HF Tactical Network              US Navy Worldwide              USB       

4240        National Guard HF Network  US Army                South Carolina Statewide        USB       

4250        National Guard HF Network  US Army                Georgia Statewide   USB       

4278        Armd Forces Network/AFN  Broadcaster             Key West, Florida USA         USB        24 Hours

4296        National Guard HF Network  US Army                Iowa Statewide       USB       

4341        Reserve HF Network              US Air Force           Nationwide             USB       

4369        WLO       Marine    Mobile, Alabama USA           USB        Ships transmit on 4077

4372        Navy FACSFAC Tactical Frequency    US Navy Virginia Capes, Virginia          USB        Giant Killer

4395        HF Tactical Network              US Navy Worldwide              USB       

4417        Worldwide Calling Frequency                Marine    Worldwide              USB        Ships transmit on 4125

4426        Coast Guard Calling/HF Frequency Broadcast      Marine/US Coast Guard         Nationwide             USB        Ships transmit on 4134

4438        Bellcore/Power Utility Network            Various    Nationwide             USB       

4442        National Guard HF Network  US Army                Nationwide             USB/ALE               

4445        National Guard HF Network  US Army                Nationwide             USB/ALE               

4466        HF Network           Civil Air Patrol       Northeast RegionSoutheast Region        USB       

4469        HF Network           Civil Air Patrol       Northeast RegionSoutheast Region        USB       

4472        Air Force HF Network           US Air Force           Worldwide              USB        Airborne Command Post Net (Z‑130)

4479        HF Network           Energy Department                Nationwide             USB/ALE               

4490        HF SHARES Network           US Government      Nationwide             USB/ALE               

4495        Air Force HF Network           US Air Force           Worldwide              USB        Airborne Command Post Net (Z‑125)

4506        HF Network           Civil Air Patrol       North Central Region              USB       

4509        HF Network           Civil Air Patrol       North Central Region              USB       

4517        National Guard HF Network  US Army                Nationwide             USB/ALE               

4520        National Guard HF Network  US Army                New Jersey/South Dakota Statewide     USB       

4528        HF Tactical Network              US Navy Worldwide              USB       

4536        National Guard HF Network  US Army                Nationwide             USB/ALE               

4555        National Guard HF Network  US Army                New Mexico Statewide           USB       

4562        National Guard HF Network  US Army                Nationwide             USB/ALE               

4580        National Guard HF Network  US Army                Washington Statewide            USB       

4582        HF Network           Civil Air Patrol       Middle East Region/Pacific Region         USB       

4585        HF Network           Civil Air Patrol       Middle East Region/Pacific Region         USB       

4590        Air Force MARS Transcontinental Network         US Air Force           Nationwide             USB       

4601        HF Network           Civil Air Patrol       Great Lakes Region/Rocky Mountain Region        USB       

4604        HF Network           Civil Air Patrol       Great Lakes Region/Rocky Mountain Region        USB       

4607        National Guard HF Network  US Army                Nationwide             USB/ALE               

4610        National Guard HF Network  US Army                Illinois Statewide    USB       

4627        HF Network           Civil Air Patrol       Southwest Region   USB       

4630        HF Network           Civil Air Patrol       Southwest Region   USB       

4637        National Guard HF Network  US Army                Nationwide             USB/ALE               

4666        CWP‑1/2 Major World Air Route Area Aeronautical            Central West Pacific               USB       

4669        SAM‑NW/SW/MID‑1/3 Major World Air Route Area         Aeronautical            South Atlantic/Middle East    USB       

4675        NAT‑D Major World Air Route Area   Aeronautical            North Atlantic        USB       

4678        NCA‑2 Major World Air Route Area    Aeronautical            North Central Asia USB       

4700        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

4703        Aeronautical Off Route Frequency        US Navy/Canadian Forces      Worldwide/Nationwide           USB       

4706        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

4709        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

4712        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

4715        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

4718        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB       

4721        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB/ALE                Air Force Scope Command

4724        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB        Global HF System Primary

4727        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB       

4730        Aeronautical Off Route Frequency        US Coast Guard      Worldwide              USB       

4733        Aeronautical Off Route Frequency        US Coast Guard      Worldwide              USB       

4736        Aeronautical Off Route Frequency        US Navy Worldwide              USB       

4739        Aeronautical Off Route Frequency        US Air Force/US Navy           Worldwide              USB       

4742        Aeronautical Off Route Frequency        Royal Air Force HF Network        US Air Force/RAF (UK)        Worldwide              USB       

4745        Aeronautical Off Route Frequency        US Air Force           Worldwide              USB/ALE                Airborne Command Post Net (Z‑135)

4776        National Guard HF Network  US Army                Nationwide             USB/ALE               

4780        National Guard HF Network  US Army                District of Colombia/Indiana Statewide  USB       

4821        HF Network           Federal Highway Administration           Nationwide             USB       

4827        National Guard HF Network  US Army                Kentucky Statewide               USB       

4857        National Guard HF Network  US Army                Nationwide             USB/ALE               

4860        National Guard HF Network  US Army                Idaho Statewide      USB       

4863        HF Network           Interior Department                Nationwide             USB       

4867        National Guard HF Network  US Army                Maryland Statewide               USB       

4900        Hurricane Contingency Support Net      US Air Force           Eastern Test Range USB       

4926        HF Tactical Network              US Army                Nationwide             USB