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

MTSTERLING prefixes in area code 859

NANPA records 13 assigned NXX blocks to rate center MTSTERLING in area code 859, 2.3% of the 563 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. 8 holders hold those blocks, the largest being BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (3), POWERTEL KENTUCKY LICENSES, INC. (2), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY (2). The earliest assignment on record here is 2001-02-06 and the most recent 2023-09-28. 10 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 217, 319, 447, 573 – overlay codes cover the same geography, so a rate center is served by all of them.

13 assigned blocks – 2.3% of 859
8 holders of record
10 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
859-274 Lumen LEVEL 3 COMMUNICATIONS, LLC - KY 2002-04-10 yes yes
859-390 T-Mobile POWERTEL KENTUCKY LICENSES, INC. 2022-06-10 yes yes
859-398 T-Mobile METROPCS, INC. 2001-02-06 yes yes
859-404 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY – yes yes
859-417 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY 2023-09-28 yes yes
859-432 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2001-03-27 yes yes
859-497 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – yes yes
859-498 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – no yes
859-499 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – no yes
859-520 Windstream PAETEC ITEL, LLC 2003-06-30 yes yes
859-585 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA – no yes
859-697 T-Mobile POWERTEL KENTUCKY LICENSES, INC. – yes yes
859-762 Onvoy ONVOY, LLC - KY – 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
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL AT&T 3 23.1%
POWERTEL KENTUCKY LICENSES, INC. T-Mobile 2 15.4%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY Verizon 2 15.4%
NEW CINGULAR WIRELESS PCS, LLC - GA AT&T 2 15.4%
LEVEL 3 COMMUNICATIONS, LLC - KY Lumen 1 7.7%
METROPCS, INC. T-Mobile 1 7.7%
PAETEC ITEL, LLC Windstream 1 7.7%
ONVOY, LLC - KY Onvoy 1 7.7%

Frequently asked

Which prefixes belong to MTSTERLING in area code 859?

13 blocks: 274, 390, 398, 404, 417, 432, 497, 498, 499, 520, 585, 697 and 1 more, all listed in the table above.

Which carriers have numbers in MTSTERLING?

BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (3 blocks), POWERTEL KENTUCKY LICENSES, INC. (2 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - GA (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - KY (1 block), METROPCS, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is MTSTERLING 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 859

All 563 prefixes in 859