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

MILLINOCKT prefixes in area code 207

NANPA records 4 assigned NXX blocks to rate center MILLINOCKT in area code 207, 0.5% of the 742 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 TELEPORT COMMUNICATIONS AMERICA, LLC - ME (1), BELL ATLANTIC MOBILE, INC (1), CONSOLIDATED COMM OF NO. NEW ENGLAND-ME (1). The earliest assignment on record here is 2016-08-12 and the most recent 2016-08-12. 4 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 207
4 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
207-261 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - ME 2016-08-12 yes yes
207-447 BELL ATLANTIC MOBILE, INC – yes yes
207-723 Consolidated CONSOLIDATED COMM OF NO. NEW ENGLAND-ME – yes yes
207-731 UNITED STATES CELLULAR - ME – 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
TELEPORT COMMUNICATIONS AMERICA, LLC - ME AT&T 1 25%
BELL ATLANTIC MOBILE, INC – 1 25%
CONSOLIDATED COMM OF NO. NEW ENGLAND-ME Consolidated 1 25%
UNITED STATES CELLULAR - ME – 1 25%

Frequently asked

Which prefixes belong to MILLINOCKT in area code 207?

4 blocks: 261, 447, 723, 731. The table above gives the holder of each.

Which carriers have numbers in MILLINOCKT?

TELEPORT COMMUNICATIONS AMERICA, LLC - ME (1 block), BELL ATLANTIC MOBILE, INC (1 block), CONSOLIDATED COMM OF NO. NEW ENGLAND-ME (1 block), UNITED STATES CELLULAR - ME (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is MILLINOCKT 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 207

All 742 prefixes in 207