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

CARY-RTP prefixes in area code 919

NANPA records 11 assigned NXX blocks to rate center CARY-RTP in area code 919, 1.4% of the 781 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. 7 holders hold those blocks, the largest being PAETEC ITEL, LLC (3), CENTURYLINK COMMUNICATIONS LLC - NC (2), BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (2). 7 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 984 – overlay codes cover the same geography, so a rate center is served by all of them.

11 assigned blocks – 1.4% of 919
7 holders of record
7 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
919-253 Lumen CENTURYLINK COMMUNICATIONS LLC - NC – no yes
919-319 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – no yes
919-336 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - NC – yes yes
919-371 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC – yes yes
919-386 Lumen LEVEL 3 COMMUNICATIONS, LLC - NC – yes yes
919-443 Windstream PAETEC ITEL, LLC – yes yes
919-473 Lumen CENTURYLINK COMMUNICATIONS LLC - NC – yes yes
919-652 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – no yes
919-654 Lumen LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC – no yes
919-657 Windstream PAETEC ITEL, LLC – yes yes
919-659 Windstream PAETEC ITEL, LLC – 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
PAETEC ITEL, LLC Windstream 3 27.3%
CENTURYLINK COMMUNICATIONS LLC - NC Lumen 2 18.2%
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL AT&T 2 18.2%
TELEPORT COMMUNICATIONS AMERICA, LLC - NC AT&T 1 9.1%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC Verizon 1 9.1%
LEVEL 3 COMMUNICATIONS, LLC - NC Lumen 1 9.1%
LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC Lumen 1 9.1%

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 CARY-RTP in area code 919?

11 blocks: 253, 319, 336, 371, 386, 443, 473, 652, 654, 657, 659. The table above gives the holder of each.

Which carriers have numbers in CARY-RTP?

PAETEC ITEL, LLC (3 blocks), CENTURYLINK COMMUNICATIONS LLC - NC (2 blocks), BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (2 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - NC (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC (1 block), LEVEL 3 COMMUNICATIONS, LLC - NC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is CARY-RTP 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 919

All 781 prefixes in 919