Off-Site Links
Adjacent Frequency Coordination Councils
T-MARC
The Mid-Atlantic Repeater Council
District of Columbia, Delaware, Maryland, Northern Virginia and the eastern panhandle of West Virginia
WPRC
Western Pennsylvania Repeater Council
All counties to the west of ARCC service territory in Pennsylvania (ARRL WPA section)
MetroCor
Metropolitan Coordination Association, Inc.
New York City, Long Island, Westchester County, and counties in northern New Jersey east of ARCC service territory
Repeater Operator Resources
RepeaterBuilder.com
A vast repository of technical information related to repeaters.
repeater-builder
The companion mailing list hosted on groups.io
AllStar Link
A world-wide radio-over-IP (RoIIP) network of repeaters, remote base stations, and hotspots.
Echolink
Internet-based interconnection of amateur stations including some repeaters
IRLP
Internet Radio Linking Project
General Amateur Radio Information
American Radio Relay League (ARRL)
A national amateur radio organization.
Federal Communications Commission (FCC)
Amateur radio license search via the Universal Licensing System (ULS)
HamCall.net
World-wide amateur callsign search and other information