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

CRESSON prefixes in area code 817

NANPA records 3 assigned NXX blocks to rate center CRESSON in area code 817, 0.4% 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. 2 holders hold those blocks, the largest being TEXAS WINDSTREAM, LLC (2), ONVOY, LLC - TX (1). 3 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 codes 582, 682, 814 – overlay codes cover the same geography, so a rate center is served by all of them.

3 assigned blocks – 0.4% of 817
2 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
817-241 Onvoy ONVOY, LLC - TX – yes yes
817-396 Windstream TEXAS WINDSTREAM, LLC – yes yes
817-512 Windstream TEXAS WINDSTREAM, 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
TEXAS WINDSTREAM, LLC Windstream 2 66.7%
ONVOY, LLC - TX Onvoy 1 33.3%

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 CRESSON in area code 817?

3 blocks: 241, 396, 512. The table above gives the holder of each.

Which carriers have numbers in CRESSON?

TEXAS WINDSTREAM, LLC (2 blocks), ONVOY, 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 CRESSON 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