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

PORTLDGGRY prefixes in area code 361

NANPA records 10 assigned NXX blocks to rate center PORTLDGGRY in area code 361, 1.9% of the 538 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 METROPCS, INC. (2), ONVOY, LLC - TX (2), FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (2). The earliest assignment on record here is 2001-08-20 and the most recent 2022-02-15. 8 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

10 assigned blocks – 1.9% of 361
7 holders of record
8 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
361-229 STPCS JOINT VENTURE, LLC 2001-08-20 yes yes
361-261 T-Mobile METROPCS, INC. 2020-02-19 yes yes
361-306 Onvoy ONVOY, LLC - TX – no yes
361-413 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2015-02-09 yes yes
361-633 T-Mobile METROPCS, INC. 2001-09-27 yes yes
361-643 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – no yes
361-704 Lumen LEVEL 3 COMMUNICATIONS, LLC - TX 2006-10-02 yes yes
361-777 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – yes yes
361-863 TON80 COMMUNICATIONS, LLC 2022-02-15 yes yes
361-977 Onvoy ONVOY, LLC - TX 2016-02-26 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
METROPCS, INC. T-Mobile 2 20%
ONVOY, LLC - TX Onvoy 2 20%
FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS Frontier 2 20%
STPCS JOINT VENTURE, LLC – 1 10%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 10%
LEVEL 3 COMMUNICATIONS, LLC - TX Lumen 1 10%
TON80 COMMUNICATIONS, LLC – 1 10%

Frequently asked

Which prefixes belong to PORTLDGGRY in area code 361?

10 blocks: 229, 261, 306, 413, 633, 643, 704, 777, 863, 977. The table above gives the holder of each.

Which carriers have numbers in PORTLDGGRY?

METROPCS, INC. (2 blocks), ONVOY, LLC - TX (2 blocks), FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (2 blocks), STPCS JOINT VENTURE, LLC (1 block), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), LEVEL 3 COMMUNICATIONS, LLC - TX (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is PORTLDGGRY 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 361

All 538 prefixes in 361