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

SAUGUS prefixes in area code 617

NANPA records 7 assigned NXX blocks to rate center SAUGUS in area code 617, 0.9% 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. 2 holders hold those blocks, the largest being CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA (4), NEW CINGULAR WIRELESS PCS, LLC - DC (3). The same rate center name also appears in area codes 339, 781 – overlay codes cover the same geography, so a rate center is served by all of them.

7 assigned blocks – 0.9% of 617
2 holders of record
0 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
617-240 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC – no yes
617-257 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC – no yes
617-285 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA – no yes
617-529 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA – no yes
617-548 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA – no yes
617-791 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC – no yes
617-797 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA – 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 - MA Verizon 4 57.1%
NEW CINGULAR WIRELESS PCS, LLC - DC AT&T 3 42.9%

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 SAUGUS in area code 617?

7 blocks: 240, 257, 285, 529, 548, 791, 797. The table above gives the holder of each.

Which carriers have numbers in SAUGUS?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA (4 blocks), NEW CINGULAR WIRELESS PCS, LLC - DC (3 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is SAUGUS 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