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

OKLD TRNID prefixes in area code 341

NANPA records 6 assigned NXX blocks to rate center OKLD TRNID in area code 341, 5.3% of the 113 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 FRACTEL, LLC (3), T-MOBILE USA, INC. (1), ONVOY, LLC - CA (1). The earliest assignment on record here is 2019-12-30 and the most recent 2026-07-24. 6 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 510 – overlay codes cover the same geography, so a rate center is served by all of them.

6 assigned blocks – 5.3% of 341
4 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
341-244 T-Mobile T-MOBILE USA, INC. 2024-01-23 yes yes
341-267 Onvoy ONVOY, LLC - CA 2026-07-24 yes yes
341-299 FRACTEL, LLC 2021-04-18 yes yes
341-344 SONIC TELECOM, LLC - CA 2021-11-19 yes yes
341-666 FRACTEL, LLC 2019-12-30 yes yes
341-899 FRACTEL, LLC 2021-09-15 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
FRACTEL, LLC – 3 50%
T-MOBILE USA, INC. T-Mobile 1 16.7%
ONVOY, LLC - CA Onvoy 1 16.7%
SONIC TELECOM, LLC - CA – 1 16.7%

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 OKLD TRNID in area code 341?

6 blocks: 244, 267, 299, 344, 666, 899. The table above gives the holder of each.

Which carriers have numbers in OKLD TRNID?

FRACTEL, LLC (3 blocks), T-MOBILE USA, INC. (1 block), ONVOY, LLC - CA (1 block), SONIC TELECOM, LLC - CA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is OKLD TRNID 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 341

All 113 prefixes in 341