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

NEW ULM prefixes in area code 507

NANPA records 11 assigned NXX blocks to rate center NEW ULM in area code 507, 1.4% of the 766 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. 4 holders hold those blocks, the largest being NEW ULM TELECOM, INC. (3), NEW CINGULAR WIRELESS PCS, LLC - IL (3), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN (3). The earliest assignment on record here is 2001-10-06 and the most recent 2025-07-15. 6 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 code 979 – overlay codes cover the same geography, so a rate center is served by all of them.

11 assigned blocks – 1.4% of 507
4 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
507-217 T-Mobile AERIAL COMMUNICATIONS, INC. 2002-06-25 yes yes
507-233 NEW ULM TELECOM, INC. – no yes
507-240 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
507-276 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN – no yes
507-354 NEW ULM TELECOM, INC. – no yes
507-359 NEW ULM TELECOM, INC. – no yes
507-404 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2002-10-02 yes yes
507-441 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-10-06 yes yes
507-766 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 2004-08-20 yes yes
507-887 T-Mobile AERIAL COMMUNICATIONS, INC. 2022-04-05 yes yes
507-980 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 2025-07-15 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
NEW ULM TELECOM, INC. – 3 27.3%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 3 27.3%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN Verizon 3 27.3%
AERIAL COMMUNICATIONS, INC. T-Mobile 2 18.2%

Frequently asked

Which prefixes belong to NEW ULM in area code 507?

11 blocks: 217, 233, 240, 276, 354, 359, 404, 441, 766, 887, 980. The table above gives the holder of each.

Which carriers have numbers in NEW ULM?

NEW ULM TELECOM, INC. (3 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN (3 blocks), AERIAL COMMUNICATIONS, 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 NEW ULM 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 507

All 766 prefixes in 507