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

CLEWISTON prefixes in area code 863

NANPA records 14 assigned NXX blocks to rate center CLEWISTON in area code 863, 3.0% of the 472 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. 9 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC - GA (3), CENTURYLINK OF FLORIDA, INC. (UNITED) (3), OMNIPOINT MIAMI E LICENSE, LLC (2). The earliest assignment on record here is 2001-03-26 and the most recent 2023-10-26. 11 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

14 assigned blocks – 3% of 863
9 holders of record
11 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
863-228 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC – yes yes
863-233 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2001-03-26 yes yes
863-254 Windstream PAETEC ITEL, LLC – yes yes
863-281 Telnyx TELNYX LLC 2021-02-02 yes yes
863-301 Lumen LEVEL 3 COMMUNICATIONS, LLC - FL 2001-05-11 yes yes
863-351 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2023-10-26 yes yes
863-527 NOVUS COMMUNICATIONS, INC. - FL 2002-04-19 no yes
863-553 TON80 COMMUNICATIONS, LLC 2022-02-17 yes yes
863-599 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA – yes yes
863-677 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA – yes yes
863-805 Lumen CENTURYLINK OF FLORIDA, INC. (UNITED) – yes yes
863-885 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL – yes yes
863-902 Lumen CENTURYLINK OF FLORIDA, INC. (UNITED) – no yes
863-983 Lumen CENTURYLINK OF FLORIDA, INC. (UNITED) – no 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
NEW CINGULAR WIRELESS PCS, LLC - GA AT&T 3 21.4%
CENTURYLINK OF FLORIDA, INC. (UNITED) Lumen 3 21.4%
OMNIPOINT MIAMI E LICENSE, LLC T-Mobile 2 14.3%
PAETEC ITEL, LLC Windstream 1 7.1%
TELNYX LLC Telnyx 1 7.1%
LEVEL 3 COMMUNICATIONS, LLC - FL Lumen 1 7.1%
NOVUS COMMUNICATIONS, INC. - FL – 1 7.1%
TON80 COMMUNICATIONS, LLC – 1 7.1%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL Verizon 1 7.1%

Frequently asked

Which prefixes belong to CLEWISTON in area code 863?

14 blocks: 228, 233, 254, 281, 301, 351, 527, 553, 599, 677, 805, 885 and 2 more, all listed in the table above.

Which carriers have numbers in CLEWISTON?

NEW CINGULAR WIRELESS PCS, LLC - GA (3 blocks), CENTURYLINK OF FLORIDA, INC. (UNITED) (3 blocks), OMNIPOINT MIAMI E LICENSE, LLC (2 blocks), PAETEC ITEL, LLC (1 block), TELNYX LLC (1 block), LEVEL 3 COMMUNICATIONS, LLC - FL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is CLEWISTON 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 863

All 472 prefixes in 863