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

DUBLIN prefixes in area code 380

NANPA records 11 assigned NXX blocks to rate center DUBLIN in area code 380, 8.0% of the 138 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 AERIAL COMMUNICATIONS, INC. (3), ONVOY, LLC - OH (3), NEW CINGULAR WIRELESS PCS, LLC - IL (3). The earliest assignment on record here is 2018-11-08 and the most recent 2026-04-08. 11 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 215, 231, 254, 267 – overlay codes cover the same geography, so a rate center is served by all of them.

11 assigned blocks – 8% of 380
5 holders of record
11 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
380-204 Vonage VONAGE AMERICA LLC 2018-11-08 yes yes
380-206 T-Mobile AERIAL COMMUNICATIONS, INC. 2019-06-25 yes yes
380-214 Onvoy ONVOY, LLC - OH 2020-05-28 yes yes
380-232 Onvoy ONVOY, LLC - OH 2021-06-28 yes yes
380-238 T-Mobile AERIAL COMMUNICATIONS, INC. 2021-09-08 yes yes
380-240 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - OH 2021-11-04 yes yes
380-250 T-Mobile AERIAL COMMUNICATIONS, INC. 2022-08-02 yes yes
380-257 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2023-01-09 yes yes
380-261 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2023-08-09 yes yes
380-269 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2024-01-25 yes yes
380-297 Onvoy ONVOY, LLC - OH 2026-04-08 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
AERIAL COMMUNICATIONS, INC. T-Mobile 3 27.3%
ONVOY, LLC - OH Onvoy 3 27.3%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 3 27.3%
VONAGE AMERICA LLC Vonage 1 9.1%
TELEPORT COMMUNICATIONS AMERICA, LLC - OH AT&T 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 DUBLIN in area code 380?

11 blocks: 204, 206, 214, 232, 238, 240, 250, 257, 261, 269, 297. The table above gives the holder of each.

Which carriers have numbers in DUBLIN?

AERIAL COMMUNICATIONS, INC. (3 blocks), ONVOY, LLC - OH (3 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (3 blocks), VONAGE AMERICA LLC (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - OH (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is DUBLIN 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 380

All 138 prefixes in 380