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

HIGHMORE prefixes in area code 605

NANPA records 4 assigned NXX blocks to rate center HIGHMORE in area code 605, 0.5% of the 745 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 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD (2), NEW CINGULAR WIRELESS PCS, LLC - IL (1), VENTURE COMMUNICATIONS COOPERATIVE (1). The earliest assignment on record here is 2005-04-22 and the most recent 2005-04-22. 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 605
3 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
605-478 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2005-04-22 yes yes
605-852 VENTURE COMMUNICATIONS COOPERATIVE – no yes
605-870 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD – yes yes
605-871 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD – 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
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD Verizon 2 50%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 25%
VENTURE COMMUNICATIONS COOPERATIVE – 1 25%

Frequently asked

Which prefixes belong to HIGHMORE in area code 605?

4 blocks: 478, 852, 870, 871. The table above gives the holder of each.

Which carriers have numbers in HIGHMORE?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), VENTURE COMMUNICATIONS COOPERATIVE (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is HIGHMORE 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 605

All 745 prefixes in 605