Calls made by dialing only the called party's last 5 digits within the PBX network or within your Centrex-served building are made at no charge to the Department.

Calls within PBX network
(204, 205, 208, 284, 302, 308, 334, 415, 516, 644, 647, 663, 736, 776, 812, 816, 875, 895, 912, 955, and 985 exchanges)

Exceptions to these instructions are:

To call USUN From Network PBX
Dial...................................... 4 + last 4 digits

To call Warrenton Training Center From Network PBX
Dial ..................................... 2 + last 4 digits

To call SA-1 (261 prefix only) From Network PBX
Dial ..................................... 4 + last 4 digits

To call SA-14 From Network PBX
Dial ..................................... 3 + 4 + last 3 digits

To call SA-11 (208 prefix only) From Network PBX
Dial ..................................... 6 + last 4 digits

To call Charleston Financial Service Center From Network PBX
Dial...................................... 3 + last 4 digits

To call Florida Regional Center From Network PBX
Dial ..................................... 5 + last 4 digits

The following Annexes are not part of the Department of State 5-digit dialing network. Seven or ten digits are needed to dial from other DOS facilities: SA-44, SA-46, and SA-47.

Exchanges for local calls are found in the front pages of your Bell Atlantic Telephone Directory.
When calling a local number in ANOTHER area code:
Dial.. 9 + 1 + area code + 7-digit number.
When calling a local number in the SAME area code:
Dial................................ 9 + 7-digit number.

Exception to these instructions:
In Maryland,  dial 9 + area code + 7-digit number for all local calls even within the same area code.

Listed below are all Washington, D.C. area Department of State locations and the appropriate area codes and prefixes.

The General Services Administration (GSA) has installed the (FTS2001) telephone system to be used in making long-distance calls within the United States, Puerto Rico, and the Virgin Islands.

It must be used in lieu of commercial calls, except in emergencies.

Dial .............. 9 + 1 + area code + number.
  (To obtain non-FTS phone numbers,
Dial.......... 9 + 1 + area code + 555-1212.)

When asked by a non-Government person to call back collect:
Dial 9 + 0 and place call with telephone company operator.

For Station-to-Station Calls: Dial 9 + 011 + Country Code + City Code + Telephone Number. For person-to-person, credit card, collect, or third-number billing calls: Dial 9 + 011 + Country Code + City Code + Telephone Number. Also, refer to instructions in the International Voice Gateway (IVG) section.

From Network PBX dial.................. 3-3434
Off Net dial ........................ 202-663-3434

Questions on these procedures should be directed to 202-647-4300.