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

ATLAS prefixes in area code 817

NANPA records 17 assigned NXX blocks to rate center ATLAS in area code 817, 2.2% 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. 5 holders hold those blocks, the largest being SOUTHWESTERN BELL (5), ONVOY, LLC - TX (5), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (4). The earliest assignment on record here is 2001-10-02 and the most recent 2004-06-04. 14 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 682 – overlay codes cover the same geography, so a rate center is served by all of them.

17 assigned blocks – 2.2% of 817
5 holders of record
14 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
817-284 AT&T SOUTHWESTERN BELL – no yes
817-286 Lumen LEVEL 3 COMMUNICATIONS, LLC - TX – yes yes
817-290 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2002-10-01 yes yes
817-440 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2002-10-30 yes yes
817-537 Windstream PAETEC ITEL, LLC 2001-10-02 yes yes
817-580 AT&T SOUTHWESTERN BELL – yes yes
817-582 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2004-06-04 yes yes
817-589 AT&T SOUTHWESTERN BELL – no yes
817-590 AT&T SOUTHWESTERN BELL – yes yes
817-591 Lumen LEVEL 3 COMMUNICATIONS, LLC - TX 2002-03-28 yes yes
817-595 AT&T SOUTHWESTERN BELL – no yes
817-616 Onvoy ONVOY, LLC - TX – yes yes
817-628 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
817-646 Onvoy ONVOY, LLC - TX – yes yes
817-686 Onvoy ONVOY, LLC - TX – yes yes
817-772 Onvoy ONVOY, LLC - TX 2003-01-28 yes yes
817-934 Onvoy ONVOY, LLC - TX – 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
SOUTHWESTERN BELL AT&T 5 29.4%
ONVOY, LLC - TX Onvoy 5 29.4%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 4 23.5%
LEVEL 3 COMMUNICATIONS, LLC - TX Lumen 2 11.8%
PAETEC ITEL, LLC Windstream 1 5.9%

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 ATLAS in area code 817?

17 blocks: 284, 286, 290, 440, 537, 580, 582, 589, 590, 591, 595, 616 and 5 more, all listed in the table above.

Which carriers have numbers in ATLAS?

SOUTHWESTERN BELL (5 blocks), ONVOY, LLC - TX (5 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (4 blocks), LEVEL 3 COMMUNICATIONS, LLC - TX (2 blocks), PAETEC ITEL, 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 ATLAS 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 817

All 781 prefixes in 817