[Title 47 CFR D]
[Code of Federal Regulations (annual edition) - October 1, 2004 Edition]
[Title 47 - TELECOMMUNICATION]
[Chapter I - FEDERAL COMMUNICATIONS COMMISSION]
[Subchapter A - GENERAL]
[Part 2 - FREQUENCY ALLOCATIONS AND RADIO TREATY MATTERS; GENERAL RULES AND]
[Subpart D - Call Signs and Other Forms of Identifying Radio Transmissions]
[From the U.S. Government Printing Office]
47TELECOMMUNICATION12004-10-012004-10-01falseCall Signs and Other Forms of Identifying Radio TransmissionsDSubpart DTELECOMMUNICATIONFEDERAL COMMUNICATIONS COMMISSIONGENERALFREQUENCY ALLOCATIONS AND RADIO TREATY MATTERS; GENERAL RULES AND
Subpart D_Call Signs and Other Forms of Identifying Radio Transmissions
Authority: Secs. 4, 5, 303, 48 Stat., as amended, 1066, 1068, 1082;
47 U.S.C. 154, 155, 303.
Sec. 2.301 Station identification requirement.
Each station using radio frequencies shall identify its
transmissions according to the procedures prescribed by the rules
governing the class of station to which it belongs with a view to the
elimination of harmful interference and the general enforcement of
applicable radio treaties, conventions, regulations, arrangements, and
agreements in force, and the enforcement of the Communications Act of
1934, as amended, and the Commission's rules.
[34 FR 5104, Mar. 12, 1969]
Sec. 2.302 Call signs.
The table which follows indicates the composition and blocks of
international call signs available for assignment when such call signs
are required by the rules pertaining to particular classes of stations.
When stations operating in two or more classes are authorized to the
same licensee for the same location, the Commission may elect to assign
a separate call sign to each station in a different class. (In addition
to the U.S. call sign allocations listed below, call sign blocks AAA
through AEZ and ALA through ALZ have been assigned to the Department of
the Army; call sign block AFA through AKZ has been assigned to the
Department of the Air Force; and call sign block NAA through NZZ has
been assigned jointly to the Department of the Navy and the U.S. Coast.
Guard.
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Class of station Composition of call sign Call sign blocks
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Coast (Class I) except for coast 3 letters............................. KAA through KZZ.
telephone in Alaska. WAA through WZZ.
Coast (Classes II and III) and 3 letters, 3 digits................... KAA200 through KZZ999.
maritime radio-determination. WAA200 through WZZ999.
Coast telephone in Alaska....... 3 letters, 2 digits...................
3 letters, 3 digits (for stations KAA20 through KZZ99.
assigned frequencies above 30 MHz). WAA20 through WZZ99.
WZZ200 through WZZ999.
Fixed........................... 3 letters, 2 digits................... KAA20 through KZZ99.
3 letters, 3 digits (for stations WAA20 through WZZ99.
assigned frequencies above 30 MHz). WAA200 through WZZ999.
Marine receiver test............ 3 letters, 3 digits (plus general KAA200 through KZZ999.
geographic location when required). WAA200 through WZZ999.
Ship telegraph.................. 4 letters \1\......................... KAAA through KZZZ.
WAAA through WZZZ.
Ship telephone.................. 2 letters, 4 digits, or 3 letters, 4 WA2000 through WZ9999, through
digits \1\. WZZ9999.
Ship telegraph plus telephone... 4 letters............................. KAAA through KZZZ.
WAAA through WZZZ.
Ship radar...................... Same as ship telephone and/or WA2000 through WZ9999, through
telegraph call sign, or, if ship has WZZ9999.
no telephone or telegraph: 2 letters,
4 digits, or 3 letters, 4 digits.
[[Page 631]]
Ship survival craft............. Call sign of the parent ship followed KAAA20 through KZZZ99.
by 2 digits. WAAA20 through WZZZ99.
Cable-repair ship marker buoy... Call sign of the parent ship followed
by the letters ``BT'' and the
identifying number of the buoy.
Marine utility.................. 2 letters, 4 digits................... KA2000 through KZ9999.
Shipyard mobile................. 2 letters, 4 digits................... KA2000 through KZ9999.
Aircraft telegraph.............. 5 letters............................. KAAAA through KZZZZ.
WAAAA through WZZZZ.
Aircraft telegraph and telephone 5 letters \2\......................... KAAAA through KZZZZ.
WAAAA through WZZZZ.
Aircraft telephone.............. 5 letters \2\ (whenever a call sign is KAAAA through KZZZZ.
assigned). WAAAA through WZZZZ.
Aircraft survival craft......... Whenever a call sign \2\ is assigned,
call sign of the parent aircraft
followed by a single digit other than
0 or 1.
Aeronautical.................... 3 letters, 1 digit \2\................ KAA2 through KZZ9.
WAA2 through WZZ9.
Land mobile (base).............. 3 letters, 3 digits................... KAA200 through KZZ999.
WAA200 through WZZ999
Land mobile (mobile telegraph).. 4 letters, 1 digit.................... KAAA2 through KZZZ9.
WAAA2 through WZZZ9.
Land mobile (mobile telephone).. 2 letters, 4 digits................... KA2000 through KZ9999.
WA2000 through WZ9999
Broadcasting (standard)......... 4 letters \3\ (plus location of KAAA through KZZZ.
station). WAAA through WZZZ.
Broadcasting (FM)............... 4 letters (plus location of station).. KAAA through KZZZ.
WAAA through WZZZ.
Broadcasting with suffix ``FM''. 6 letters \3\ (plus location of KAAA-FM through KZZZ--FM.
station). WAAA-FM through WZZZ-FM.
Broadcasting (television)....... 4 letters (plus location of station).. KAAA through KZZZ.
WAAA through WZZZ.
Broadcasting with suffix ``TV''. 6 letters \3\ (plus location of KAAA-TV through KZZZ-TV.
station). WAAA-TV through WZZ-TV.
Television broadcast translator. 1 letter--output channel number--2 K02AA through K83ZZ.
letters. W02AA through W83ZZ.
Disaster station, except U.S. 4 letters, 1 digit.................... KAAA2 through KZZZ9.
Government. WAAA2 through WZZZ9.
Experimental (letter ``X'' 2 letters, 1 digit, 3 letters......... KA2XAA through KZ9XZZ.
follows the digit). WA2XAA through WZ9XZZ.
Amateur (letter ``X'' may not 1 letter, 1 digit, 1 letter \4\....... K1A through K0Z.
follow digit). N1A through N0Z.
W1A through W0Z.
Amateur......................... 1 letter, 1 digit, 2 letters \4\...... K1AA through K0ZZ.
N1AA through N0ZZ.
W1AA through W0ZZ.
Do............................. 1 letter, 1 digit, 3 letters \4\...... K1AAA through K0ZZZ.
N1AAA through N0ZZZ.
W1AAA through W0ZZZ.
Do............................. 2 letters, 1 digit, 1 letter \4\...... AA1A through AI0Z.
KA1A through KZ0Z.
NA1A through NZ0Z.
WA1A through WZ0Z.
Do............................. 2 letters, 1 digit, 2 letters \4\..... AA1AA through AL0ZZ.
KA1AA through KZ0ZZ.
NA1AA through NZ0ZZ.
WA1AA through WZ0ZZ.
Amateur (letter ``X'' may not 2 letters, 1 digit, 3 letters \4\..... AA1AAA through AL0ZZZ.
follow digit). KA1AAA through KZ0ZZZ.
NA1AAA through NZ0ZZZ.
WA1AAA through WZ0ZZZ.
Standard frequency.............. ...................................... WWV, WWVB through WWVI, WWVL, WWVS.
Personal radio.................. 3 letters, 4 digits, or 4 letters, 4 KAA0001 through KZZ9999,
digits.. WAA0001 through WPZ9999,
KAAA0001 through KZZZ9999.
Personal radio, temporary permit 3 letters, 5 digits................... KAA00000 through KZZ99999.
Personal radio in trust 1 letter, 4 digits.................... K0001 through K9999.
territories..
Business radio temporary permit. 2 letters, 7 digits................... WT plus local telephone number.
Part 90 temporary permit........ 2 letters, 7 digits................... WT plus local telephone number.
Part 90 conditional permit...... 2 letters, 7 digits................... WT plus local telephone number.
General Mobile Radio Service, 2 letters, 7 digits................... WT plus business or residence
temporary permit. telephone number.
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Note: The symbol 0 indicates the digit zero.
[[Page 632]]
\1\ Ships with transmitter-equipped survival craft shall be assigned four letter call signs.
\2\ See Sec. 2.303.
\3\ A 3 letter call sign now authorized for and in continuous use by a licensee of a standard broadcasting
station may continue to be used by that station. The same exception applies also to frequency modulation and
television broadcasting stations using 5 letter call signs consisting of 3 letters with the suffix ``FM'' or
``TV''.
\4\ Plus other identifying data as may be specified.
[34 FR 5104, Mar. 12, 1969; as amended at 54 50239, Dec. 5, 1989]
Editorial Note: For Federal Register citations affecting Sec.
2.302, see the List of CFR Sections Affected in the Finding Aids section
of this volume.
Sec. 2.303 Other forms of identification of stations.
(a) The following table indicates forms of identification which may
be used in lieu of call signs by the specified classes of stations. Such
recognized means of identification may be one or more of the following:
name of station, location of station, operating agency, official
registration mark, flight identification number, selective call number
or signal, selective call identification number or signal,
characteristic signal, characteristic of emission or other clearly
distinguishing form of identification readily recognized
internationally. Reference should be made to the appropriate part of the
rules for complete information on identification procedures for each
service.
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Class of station Identification, other than assigned call sign
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Aircraft (U.S. registry) Registration number preceded by the type of the aircraft, or the
telephone. radiotelephony designator of the aircraft operating agency followed by the
flight identification number.
Aircraft (foreign registry) Foreign registry identification consisting of five characters. This may be
telephone. preceded by the radiotelephony designator of the aircraft operating agency
or it may be preceded by the type of the aircraft.
Aeronautical..................... Name of the city, area, or airdrome served together with such additional
identification as may be required.
Aircraft survival craft.......... Appropriate reference to parent aircraft, e.g., the air carrier parent
aircraft flight number or identification, the aircraft registration number,
the name of the aircraft manufacturer, the name of the aircraft owner, or
any other pertinent information.
Ship telegraph................... When an official call sign is not yet assigned: Complete name of the ship and
name of licensee. On 156.65 MHz: Name of ship. Digital selective call.
Ship telegraph................... Digital selective call.
Public coast (radiotelephone) and The approximate geographic location in a format approved by the Commission.
Limited Coast (Radiotelephone).
Coast station identification number.
Public coast (radiotelegraph).... Coast station identification number.
Fixed............................ Geographic location. When an approved method of superimposed identification
is used, QTT DE (abbreviated name of company or station).
Fixed: Rural subscriber service.. Assigned telephone number.
Land mobile: Public safety, Name of station licensee (in abbreviated form if practicable), or location of
forestry conservation, highway station, or name of city, area, or facility served. Individual stations may
maintenance, local government, be identified by additional digits following the more general
shipyard, land transportation, identification.
and aviation services.
Land mobile: Industrial service.. Mobile unit cochannel with its base station: Unit identifier on file in the
base station records. Mobile unit not cochannel with its base station: Unit
identifier on file in the base station records and the assigned call sign of
either the mobile or base station. Temporary base station: Unit designator
in addition to base station identification.
Land mobile: Domestic public and Special mobile unit designation assigned by licensee or by assigned telephone
rural radio. number.
Land mobile: Railroad radio Name of railroad, train number, caboose number, engine number, or name of
service. fixed wayside station or such other number or name as may be specified for
use of railroad employees to identify a specific fixed point or mobile unit.
A railroad's abbreviated name or initial letters may be used where such are
in general usage. Unit designators may be used in addition to the station
identification to identify an individual unit or transmitter of a base
station.
Land mobile: Broadcasting (remote Identification of associated broadcasting station.
pickup).
Broadcasting (Emergency Broadcast State and operational area identification.
System).
Broadcasting (aural STL and Call sign of the broadcasting station with which it is associated.
intercity relay).
Broadcasting (television Call sign of the TV broadcasting station with which it is licensed as an
auxiliary). auxiliary, or call sign of the TV broadcasting station whose signals are
being relayed, or by network identification.
Broadcasting (television Retransmission of the call sign of the primary station.
booster)..
[[Page 633]]
Disaster station................. By radiotelephony: Name, location, or other designation of station when same
as that of an associated station in some other service. Two or more separate
units of a station operated at different locations are separately identified
by the addition of a unit name, number, or other designation at the end of
its authorized means of identification.
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(b) Digital selective calls will be authorized by the Commission and
will be formed by groups of numbers (0 through 9), however, the first
digit must be other than 0, as follows:
(1) Coast station identification number: 4 digits.
(2) Ship station selective call number: 5 digits.
(3) Predetermined group of ship stations: 5 digits.
(c) Ship stations operating under a temporary operating authority
shall identify by a call sign consisting of the letter ``K'' followed by
the vessel's Federal or State registration number, or a call sign
consisting of the letters ``KUS'' followed by the vessel's documentation
number. However, if the vessel has no registration number or
documentation number, the call sign shall consist of the name of the
vessel and the name of the licensee as they appear on the station
application form.
[28 FR 12465, Nov. 22, 1963, as amended at 40 FR 57675, Dec. 11, 1975;
41 FR 44042, Oct. 6, 1976; 42 FR 31008, June 17, 1977; 44 FR 62284, Oct.
30, 1979]