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

PONCE prefixes in area code 939

NANPA records 15 assigned NXX blocks to rate center PONCE in area code 939, 4.2% of the 359 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 SUNCOM DBA T-MOBILE USA (12), LIBERTY MOBILE PUERTO RICO INC. (1), PUERTO RICO TEL. CO. (1). The earliest assignment on record here is 2009-03-18 and the most recent 2024-07-02. 15 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 787 – overlay codes cover the same geography, so a rate center is served by all of them.

15 assigned blocks – 4.2% of 939
4 holders of record
15 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
939-209 T-Mobile SUNCOM DBA T-MOBILE USA 2014-12-03 yes yes
939-217 T-Mobile SUNCOM DBA T-MOBILE USA 2009-03-18 yes yes
939-222 T-Mobile SUNCOM DBA T-MOBILE USA 2016-03-22 yes yes
939-295 T-Mobile SUNCOM DBA T-MOBILE USA 2018-07-30 yes yes
939-328 T-Mobile SUNCOM DBA T-MOBILE USA 2021-11-05 yes yes
939-368 T-Mobile SUNCOM DBA T-MOBILE USA 2023-05-22 yes yes
939-384 T-Mobile SUNCOM DBA T-MOBILE USA 2022-01-21 yes yes
939-387 Liberty LIBERTY MOBILE PUERTO RICO INC. 2024-03-13 yes yes
939-422 T-Mobile SUNCOM DBA T-MOBILE USA 2016-04-26 yes yes
939-423 T-Mobile SUNCOM DBA T-MOBILE USA 2024-07-02 yes yes
939-441 T-Mobile SUNCOM DBA T-MOBILE USA 2018-04-17 yes yes
939-500 PUERTO RICO TEL. CO. 2011-07-19 yes yes
939-788 T-Mobile SUNCOM DBA T-MOBILE USA 2015-06-29 yes yes
939-835 T-Mobile SUNCOM DBA T-MOBILE USA 2021-09-16 yes yes
939-900 NATURAL G.C. INC. - PR 2018-12-17 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
SUNCOM DBA T-MOBILE USA T-Mobile 12 80%
LIBERTY MOBILE PUERTO RICO INC. Liberty 1 6.7%
PUERTO RICO TEL. CO. – 1 6.7%
NATURAL G.C. INC. - PR – 1 6.7%

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 PONCE in area code 939?

15 blocks: 209, 217, 222, 295, 328, 368, 384, 387, 422, 423, 441, 500 and 3 more, all listed in the table above.

Which carriers have numbers in PONCE?

SUNCOM DBA T-MOBILE USA (12 blocks), LIBERTY MOBILE PUERTO RICO INC. (1 block), PUERTO RICO TEL. CO. (1 block), NATURAL G.C. INC. - PR (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is PONCE 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 939

All 359 prefixes in 939