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

ARDMORE prefixes in area code 256

NANPA records 5 assigned NXX blocks to rate center ARDMORE in area code 256, 0.6% of the 786 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. 2 holders hold those blocks, the largest being MCC TELEPHONY LLC (3), ARDMORE TEL. CO., INC. (2). The earliest assignment on record here is 2006-07-10 and the most recent 2010-06-21. 3 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 580, 605, 931 – overlay codes cover the same geography, so a rate center is served by all of them.

5 assigned blocks – 0.6% of 256
2 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
256-420 ARDMORE TEL. CO., INC. – no yes
256-423 ARDMORE TEL. CO., INC. – no yes
256-785 MCC TELEPHONY LLC 2007-12-27 yes yes
256-943 MCC TELEPHONY LLC 2010-06-21 yes yes
256-995 MCC TELEPHONY LLC 2006-07-10 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
MCC TELEPHONY LLC – 3 60%
ARDMORE TEL. CO., INC. – 2 40%

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 ARDMORE in area code 256?

5 blocks: 420, 423, 785, 943, 995. The table above gives the holder of each.

Which carriers have numbers in ARDMORE?

MCC TELEPHONY LLC (3 blocks), ARDMORE TEL. CO., INC. (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is ARDMORE 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 256

All 786 prefixes in 256