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

MOUNT IDA prefixes in area code 870

NANPA records 4 assigned NXX blocks to rate center MOUNT IDA in area code 870, 0.5% of the 785 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 WINDSTREAM ARKANSAS, INC. (2), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR (1), LEVEL 3 COMMUNICATIONS, LLC - AR (1). The earliest assignment on record here is 2004-06-02 and the most recent 2015-07-13. 3 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

4 assigned blocks – 0.5% of 870
3 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
870-490 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 2004-06-02 yes yes
870-867 Windstream WINDSTREAM ARKANSAS, INC. – no yes
870-905 Lumen LEVEL 3 COMMUNICATIONS, LLC - AR 2005-08-22 yes yes
870-985 Windstream WINDSTREAM ARKANSAS, INC. 2015-07-13 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
WINDSTREAM ARKANSAS, INC. Windstream 2 50%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR Verizon 1 25%
LEVEL 3 COMMUNICATIONS, LLC - AR Lumen 1 25%

Frequently asked

Which prefixes belong to MOUNT IDA in area code 870?

4 blocks: 490, 867, 905, 985. The table above gives the holder of each.

Which carriers have numbers in MOUNT IDA?

WINDSTREAM ARKANSAS, INC. (2 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR (1 block), LEVEL 3 COMMUNICATIONS, LLC - AR (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is MOUNT IDA 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 870

All 785 prefixes in 870