NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

TRIANGLE prefixes in area code 703

NANPA records 13 assigned NXX blocks to rate center TRIANGLE in area code 703, 1.7% of the 775 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 4 holders hold those blocks, the largest being VERIZON SOUTH, INC. - VA (CONTEL) (8), LEVEL 3 COMMUNICATIONS, LLC - VA (2), TELEPORT COMMUNICATIONS AMERICA, LLC - DC (2). The earliest assignment on record here is 2001-03-19 and the most recent 2005-10-19. 8 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area code 571 – overlay codes cover the same geography, so a rate center is served by all of them.

13 assigned blocks – 1.7% of 703
4 holders of record
8 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
703-221 Verizon VERIZON SOUTH, INC. - VA (CONTEL) – no yes
703-291 Lumen LEVEL 3 COMMUNICATIONS, LLC - VA – yes yes
703-432 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - DC – no yes
703-441 Verizon VERIZON SOUTH, INC. - VA (CONTEL) – no yes
703-445 Verizon VERIZON SOUTH, INC. - VA (CONTEL) – yes yes
703-630 Verizon VERIZON SOUTH, INC. - VA (CONTEL) – yes yes
703-632 Verizon VERIZON SOUTH, INC. - VA (CONTEL) – no yes
703-634 Verizon VERIZON SOUTH, INC. - VA (CONTEL) – yes yes
703-640 Verizon VERIZON SOUTH, INC. - VA (CONTEL) – yes yes
703-649 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2001-03-19 yes yes
703-784 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - DC – no yes
703-884 Lumen LEVEL 3 COMMUNICATIONS, LLC - VA – yes yes
703-985 Verizon VERIZON SOUTH, INC. - VA (CONTEL) 2005-10-19 yes yes

The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.

Who holds the blocks

HolderBrandBlocksShare here
VERIZON SOUTH, INC. - VA (CONTEL) Verizon 8 61.5%
LEVEL 3 COMMUNICATIONS, LLC - VA Lumen 2 15.4%
TELEPORT COMMUNICATIONS AMERICA, LLC - DC AT&T 2 15.4%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 7.7%

Same rate center in other codes

Overlay codes cover the same geography, so one rate center is served by all of them.

Frequently asked

Which prefixes belong to TRIANGLE in area code 703?

13 blocks: 221, 291, 432, 441, 445, 630, 632, 634, 640, 649, 784, 884 and 1 more, all listed in the table above.

Which carriers have numbers in TRIANGLE?

VERIZON SOUTH, INC. - VA (CONTEL) (8 blocks), LEVEL 3 COMMUNICATIONS, LLC - VA (2 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - DC (2 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is TRIANGLE a city?

It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.

Other rate centers in 703

All 775 prefixes in 703