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

RAMAH prefixes in area code 505

NANPA records 3 assigned NXX blocks to rate center RAMAH in area code 505, 0.4% of the 685 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. 3 holders hold those blocks, the largest being FRACTEL, LLC (1), CENTURYTEL SOUTHWEST INC-NM DBA CENTURYLINK - NM (1), ONVOY, LLC - NM (1). The earliest assignment on record here is 2008-08-13 and the most recent 2020-06-04. 2 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

3 assigned blocks – 0.4% of 505
3 holders of record
2 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
505-744 FRACTEL, LLC 2020-06-04 yes yes
505-783 Lumen CENTURYTEL SOUTHWEST INC-NM DBA CENTURYLINK - NM – no yes
505-806 Onvoy ONVOY, LLC - NM 2008-08-13 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
FRACTEL, LLC – 1 33.3%
CENTURYTEL SOUTHWEST INC-NM DBA CENTURYLINK - NM Lumen 1 33.3%
ONVOY, LLC - NM Onvoy 1 33.3%

Frequently asked

Which prefixes belong to RAMAH in area code 505?

3 blocks: 744, 783, 806. The table above gives the holder of each.

Which carriers have numbers in RAMAH?

FRACTEL, LLC (1 block), CENTURYTEL SOUTHWEST INC-NM DBA CENTURYLINK - NM (1 block), ONVOY, LLC - NM (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is RAMAH 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 505

All 685 prefixes in 505