Milton, MA — rate center
- State
- Massachusetts
- Active prefixes
- 21
- Carriers
- 12
- Pooled prefixes
- 15
- LATA
- 128
- Metro area
- Boston-Cambridge-Newton, MA-NH MSA
Milton is a telephone rate center in Massachusetts served by area codes 617, 857. A rate center is the locality the phone industry uses to anchor numbers for billing; every prefix listed below is registered here.
The rate center currently carries 21 working prefixes, held by 12 different carriers. Pooling applies to 15 of them — individual thousands-blocks may belong to different companies.
The rate center belongs to the Boston-Cambridge-Newton, MA-NH Metropolitan Statistical Area. Routing-wise it sits in LATA 128.
Because 617, 857 all serve this territory, two Milton numbers can look completely different while being neighbors — check the prefix, not just the area code.
A Milton prefix on caller ID is a starting point, not proof of origin — numbers travel with their owners and displays can be spoofed. Use official callback numbers for anything sensitive.
Prefixes anchored to Milton
| Prefix | Code holder | Pooled |
|---|---|---|
| 617-273 | LEVEL 3 COMMUNICATIONS, LLC - MA | Yes |
| 617-291 | NEW CINGULAR WIRELESS PCS, LLC - DC | No |
| 617-296 | VERIZON NEW ENGLAND INC. | No |
| 617-298 | VERIZON NEW ENGLAND INC. | Yes |
| 617-313 | PAETEC ITEL, LLC | Yes |
| 617-322 | COMCAST IP PHONE, LLC | Yes |
| 617-433 | TC SYSTEMS, INC. | Yes |
| 617-609 | NEW CINGULAR WIRELESS PCS, LLC - DC | Yes |
| 617-615 | RCN TELECOM SERVICES, INC. - MA | Yes |
| 617-690 | LEVEL 3 COMMUNICATIONS, LLC - MA | Yes |
| 617-696 | VERIZON NEW ENGLAND INC. | No |
| 617-698 | VERIZON NEW ENGLAND INC. | No |
| 617-898 | VERIZON NEW ENGLAND INC. | Yes |
| 617-907 | NORFOLK COUNTY INTERNET, INC. | No |
| 617-915 | ONVOY, LLC - MA | Yes |
| 617-922 | NEW CINGULAR WIRELESS PCS, LLC - DC | No |
| 617-980 | METROPCS, INC. | Yes |
FAQ
What area code is Milton, MA?
Milton is served by 2 area codes — 617, 857 — which overlay the same territory.
How many prefixes does Milton have?
21 active NXX prefixes are anchored to this rate center in NANPA records, held by 12 carriers.
Is a call from a Milton prefix really from Milton?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.