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

MILTON prefixes in area code 617

NANPA records 17 assigned NXX blocks to rate center MILTON in area code 617, 2.2% of the 768 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. 10 holders hold those blocks, the largest being VERIZON NEW ENGLAND INC. (5), NEW CINGULAR WIRELESS PCS, LLC - DC (3), LEVEL 3 COMMUNICATIONS, LLC - MA (2). The earliest assignment on record here is 2002-10-25 and the most recent 2024-01-05. 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 209, 217, 272, 302 – overlay codes cover the same geography, so a rate center is served by all of them.

17 assigned blocks – 2.2% of 617
10 holders of record
11 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
617-273 Lumen LEVEL 3 COMMUNICATIONS, LLC - MA – yes yes
617-291 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC – no yes
617-296 Verizon VERIZON NEW ENGLAND INC. – no yes
617-298 Verizon VERIZON NEW ENGLAND INC. – yes yes
617-313 Windstream PAETEC ITEL, LLC – yes yes
617-322 Comcast COMCAST IP PHONE, LLC – yes yes
617-433 AT&T TC SYSTEMS, INC. – yes yes
617-609 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC 2024-01-05 yes yes
617-615 RCN TELECOM SERVICES, INC. - MA – yes yes
617-690 Lumen LEVEL 3 COMMUNICATIONS, LLC - MA – yes yes
617-696 Verizon VERIZON NEW ENGLAND INC. – no yes
617-698 Verizon VERIZON NEW ENGLAND INC. – no yes
617-898 Verizon VERIZON NEW ENGLAND INC. – yes yes
617-907 NORFOLK COUNTY INTERNET, INC. – no yes
617-915 Onvoy ONVOY, LLC - MA – yes yes
617-922 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC – no yes
617-980 T-Mobile METROPCS, INC. 2002-10-25 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
VERIZON NEW ENGLAND INC. Verizon 5 29.4%
NEW CINGULAR WIRELESS PCS, LLC - DC AT&T 3 17.6%
LEVEL 3 COMMUNICATIONS, LLC - MA Lumen 2 11.8%
PAETEC ITEL, LLC Windstream 1 5.9%
COMCAST IP PHONE, LLC Comcast 1 5.9%
TC SYSTEMS, INC. AT&T 1 5.9%
RCN TELECOM SERVICES, INC. - MA – 1 5.9%
NORFOLK COUNTY INTERNET, INC. – 1 5.9%
ONVOY, LLC - MA Onvoy 1 5.9%
METROPCS, INC. T-Mobile 1 5.9%

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 MILTON in area code 617?

17 blocks: 273, 291, 296, 298, 313, 322, 433, 609, 615, 690, 696, 698 and 5 more, all listed in the table above.

Which carriers have numbers in MILTON?

VERIZON NEW ENGLAND INC. (5 blocks), NEW CINGULAR WIRELESS PCS, LLC - DC (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - MA (2 blocks), PAETEC ITEL, LLC (1 block), COMCAST IP PHONE, LLC (1 block), TC SYSTEMS, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is MILTON 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 617

All 768 prefixes in 617