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

BUFFALO prefixes in area code 307

NANPA records 9 assigned NXX blocks to rate center BUFFALO in area code 307, 1.8% of the 499 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. 8 holders hold those blocks, the largest being CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY (2), NEW CINGULAR WIRELESS PCS, LLC (1), LEVEL 3 COMMUNICATIONS, LLC - WY (1). The earliest assignment on record here is 2002-10-09 and the most recent 2021-11-05. 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 codes 217, 270, 304, 417 – overlay codes cover the same geography, so a rate center is served by all of them.

9 assigned blocks – 1.8% of 307
8 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
307-217 AT&T NEW CINGULAR WIRELESS PCS, LLC 2002-10-09 yes yes
307-278 Lumen LEVEL 3 COMMUNICATIONS, LLC - WY 2004-05-19 yes yes
307-285 AIRUS, INC. - WY 2020-05-21 yes yes
307-423 Bandwidth BANDWIDTH.COM CLEC, LLC - WY 2021-11-05 yes yes
307-425 ADVANCED COMMUNICATIONS TECHNOLOGY, INC. - WY 2011-03-30 no yes
307-620 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY – yes yes
307-621 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY – yes yes
307-684 Lumen QWEST CORPORATION – no yes
307-719 UNION TELEPHONE COMPANY 2002-12-27 no 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 - WY Verizon 2 22.2%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 11.1%
LEVEL 3 COMMUNICATIONS, LLC - WY Lumen 1 11.1%
AIRUS, INC. - WY – 1 11.1%
BANDWIDTH.COM CLEC, LLC - WY Bandwidth 1 11.1%
ADVANCED COMMUNICATIONS TECHNOLOGY, INC. - WY – 1 11.1%
QWEST CORPORATION Lumen 1 11.1%
UNION TELEPHONE COMPANY – 1 11.1%

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 BUFFALO in area code 307?

9 blocks: 217, 278, 285, 423, 425, 620, 621, 684, 719. The table above gives the holder of each.

Which carriers have numbers in BUFFALO?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY (2 blocks), NEW CINGULAR WIRELESS PCS, LLC (1 block), LEVEL 3 COMMUNICATIONS, LLC - WY (1 block), AIRUS, INC. - WY (1 block), BANDWIDTH.COM CLEC, LLC - WY (1 block), ADVANCED COMMUNICATIONS TECHNOLOGY, INC. - WY (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is BUFFALO 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 307

All 499 prefixes in 307