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

GREENCASTL prefixes in area code 765

NANPA records 12 assigned NXX blocks to rate center GREENCASTL in area code 765, 1.7% 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 FRONTIER NORTH, INC.. - IN (3), NEW CINGULAR WIRELESS PCS, LLC - IL (3), METROPCS, INC. (1). The earliest assignment on record here is 2002-03-13 and the most recent 2004-10-12. 11 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 223, 717 – overlay codes cover the same geography, so a rate center is served by all of them.

12 assigned blocks – 1.7% of 765
8 holders of record
11 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
765-247 T-Mobile METROPCS, INC. – yes yes
765-276 Lumen LEVEL 3 COMMUNICATIONS, LLC - IN 2002-03-13 yes yes
765-301 T-Mobile OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC – yes yes
765-630 Comcast COMCAST IP PHONE, LLC – yes yes
765-653 Frontier FRONTIER NORTH, INC.. - IN – no yes
765-655 Frontier FRONTIER NORTH, INC.. - IN – yes yes
765-657 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN – yes yes
765-658 Frontier FRONTIER NORTH, INC.. - IN – yes yes
765-719 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
765-720 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
765-721 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
765-848 Windstream PAETEC ITEL, LLC 2004-10-12 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
FRONTIER NORTH, INC.. - IN Frontier 3 25%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 3 25%
METROPCS, INC. T-Mobile 1 8.3%
LEVEL 3 COMMUNICATIONS, LLC - IN Lumen 1 8.3%
OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC T-Mobile 1 8.3%
COMCAST IP PHONE, LLC Comcast 1 8.3%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN Verizon 1 8.3%
PAETEC ITEL, LLC Windstream 1 8.3%

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 GREENCASTL in area code 765?

12 blocks: 247, 276, 301, 630, 653, 655, 657, 658, 719, 720, 721, 848. The table above gives the holder of each.

Which carriers have numbers in GREENCASTL?

FRONTIER NORTH, INC.. - IN (3 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (3 blocks), METROPCS, INC. (1 block), LEVEL 3 COMMUNICATIONS, LLC - IN (1 block), OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (1 block), COMCAST IP PHONE, LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is GREENCASTL 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