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

NEW CASTLE prefixes in area code 765

NANPA records 18 assigned NXX blocks to rate center NEW CASTLE in area code 765, 2.5% of the 725 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 INDIANA BELL TEL CO INC (7), NEW CINGULAR WIRELESS PCS, LLC - IL (3), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN (2). The earliest assignment on record here is 2001-04-17 and the most recent 2003-10-16. 14 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 302, 540, 724, 878 – overlay codes cover the same geography, so a rate center is served by all of them.

18 assigned blocks – 2.5% of 765
8 holders of record
14 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
765-388 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2003-10-16 yes yes
765-422 Peerless PEERLESS NETWORK OF INDIANA, LLC - IN – yes yes
765-465 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 2002-02-13 yes yes
765-515 AT&T INDIANA BELL TEL CO INC – no yes
765-518 Lumen LEVEL 3 TELECOM OF INDIANA, LP - IN – yes yes
765-519 AT&T INDIANA BELL TEL CO INC – no yes
765-520 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-04-17 yes yes
765-521 AT&T INDIANA BELL TEL CO INC – yes yes
765-524 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN – no yes
765-527 AT&T INDIANA BELL TEL CO INC – yes yes
765-529 AT&T INDIANA BELL TEL CO INC – no yes
765-545 T-Mobile OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2002-02-25 yes yes
765-575 Lumen LEVEL 3 COMMUNICATIONS, LLC - IN 2002-03-21 yes yes
765-591 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - IN – yes yes
765-593 AT&T INDIANA BELL TEL CO INC – yes yes
765-599 AT&T INDIANA BELL TEL CO INC – yes yes
765-624 T-Mobile OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2003-01-03 yes yes
765-686 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2002-04-16 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
INDIANA BELL TEL CO INC AT&T 7 38.9%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 3 16.7%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN Verizon 2 11.1%
OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC T-Mobile 2 11.1%
PEERLESS NETWORK OF INDIANA, LLC - IN Peerless 1 5.6%
LEVEL 3 TELECOM OF INDIANA, LP - IN Lumen 1 5.6%
LEVEL 3 COMMUNICATIONS, LLC - IN Lumen 1 5.6%
TELEPORT COMMUNICATIONS AMERICA, LLC - IN AT&T 1 5.6%

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 NEW CASTLE in area code 765?

18 blocks: 388, 422, 465, 515, 518, 519, 520, 521, 524, 527, 529, 545 and 6 more, all listed in the table above.

Which carriers have numbers in NEW CASTLE?

INDIANA BELL TEL CO INC (7 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN (2 blocks), OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2 blocks), PEERLESS NETWORK OF INDIANA, LLC - IN (1 block), LEVEL 3 TELECOM OF INDIANA, LP - IN (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is NEW CASTLE 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 765

All 725 prefixes in 765