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

KEYSTN HTS prefixes in area code 352

NANPA records 7 assigned NXX blocks to rate center KEYSTN HTS in area code 352, 1.0% of the 711 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. 6 holders hold those blocks, the largest being POWERTEL JACKSONVILLE LICENSES, INC. (2), BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (1), BANDWIDTH.COM CLEC, LLC - FL (1). The earliest assignment on record here is 2002-03-28 and the most recent 2024-10-07. 6 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

7 assigned blocks – 1% of 352
6 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
352-235 T-Mobile POWERTEL JACKSONVILLE LICENSES, INC. 2002-03-28 yes yes
352-473 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – no yes
352-478 T-Mobile POWERTEL JACKSONVILLE LICENSES, INC. – yes yes
352-639 Bandwidth BANDWIDTH.COM CLEC, LLC - FL 2010-08-17 yes yes
352-645 Onvoy ONVOY, LLC - FL 2019-03-28 yes yes
352-837 TON80 COMMUNICATIONS, LLC 2021-04-07 yes yes
352-880 Charter ONVOY SPECTRUM, LLC 2024-10-07 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
POWERTEL JACKSONVILLE LICENSES, INC. T-Mobile 2 28.6%
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL AT&T 1 14.3%
BANDWIDTH.COM CLEC, LLC - FL Bandwidth 1 14.3%
ONVOY, LLC - FL Onvoy 1 14.3%
TON80 COMMUNICATIONS, LLC – 1 14.3%
ONVOY SPECTRUM, LLC Charter 1 14.3%

Frequently asked

Which prefixes belong to KEYSTN HTS in area code 352?

7 blocks: 235, 473, 478, 639, 645, 837, 880. The table above gives the holder of each.

Which carriers have numbers in KEYSTN HTS?

POWERTEL JACKSONVILLE LICENSES, INC. (2 blocks), BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (1 block), BANDWIDTH.COM CLEC, LLC - FL (1 block), ONVOY, LLC - FL (1 block), TON80 COMMUNICATIONS, LLC (1 block), ONVOY SPECTRUM, LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is KEYSTN HTS 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 352

All 711 prefixes in 352