Brookline, MA — rate center
- State
- Massachusetts
- Active prefixes
- 64
- Carriers
- 14
- Pooled prefixes
- 45
- LATA
- 128
- Metro area
- Boston-Cambridge-Newton, MA-NH MSA
Brookline 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 64 working prefixes, held by 14 different carriers. Pooling applies to 45 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 Brookline numbers can look completely different while being neighbors — check the prefix, not just the area code.
A Brookline 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 Brookline
| Prefix | Code holder | Pooled |
|---|---|---|
| 617-232 | VERIZON NEW ENGLAND INC. | No |
| 617-264 | VERIZON NEW ENGLAND INC. | Yes |
| 617-274 | PAETEC ITEL, LLC | Yes |
| 617-277 | VERIZON NEW ENGLAND INC. | No |
| 617-278 | VERIZON NEW ENGLAND INC. | No |
| 617-355 | VERIZON NEW ENGLAND INC. | Yes |
| 617-383 | PAETEC ITEL, LLC | Yes |
| 617-396 | TC SYSTEMS, INC. | Yes |
| 617-432 | VERIZON NEW ENGLAND INC. | No |
| 617-487 | TC SYSTEMS, INC. | Yes |
| 617-505 | LEVEL 3 COMMUNICATIONS, LLC - MA | Yes |
| 617-525 | VERIZON NEW ENGLAND INC. | No |
| 617-566 | VERIZON NEW ENGLAND INC. | No |
| 617-582 | VERIZON NEW ENGLAND INC. | Yes |
| 617-608 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Yes |
| 617-632 | VERIZON NEW ENGLAND INC. | No |
| 617-651 | PAETEC ITEL, LLC | Yes |
| 617-667 | VERIZON NEW ENGLAND INC. | No |
| 617-677 | NORFOLK COUNTY INTERNET, INC. | No |
| 617-713 | VERIZON NEW ENGLAND INC. | No |
| 617-730 | VERIZON NEW ENGLAND INC. | No |
| 617-731 | VERIZON NEW ENGLAND INC. | No |
| 617-732 | VERIZON NEW ENGLAND INC. | No |
| 617-734 | VERIZON NEW ENGLAND INC. | No |
| 617-735 | VERIZON NEW ENGLAND INC. | Yes |
| 617-738 | VERIZON NEW ENGLAND INC. | No |
| 617-739 | VERIZON NEW ENGLAND INC. | No |
| 617-751 | LEVEL 3 COMMUNICATIONS, LLC - MA | Yes |
| 617-754 | VERIZON NEW ENGLAND INC. | No |
| 617-857 | BANDWIDTH.COM CLEC, LLC - MA | Yes |
| 617-860 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Yes |
| 617-879 | RCN TELECOM SERVICES, INC. - MA | Yes |
| 617-906 | LEVEL 3 COMMUNICATIONS, LLC - MA | Yes |
| 617-935 | OMNIPOINT MIAMI E LICENSE, LLC | Yes |
| 617-953 | OMNIPOINT MIAMI E LICENSE, LLC | No |
| 617-975 | VERIZON NEW ENGLAND INC. | No |
| 617-991 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Yes |
| 617-992 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Yes |
FAQ
What area code is Brookline, MA?
Brookline is served by 2 area codes — 617, 857 — which overlay the same territory.
How many prefixes does Brookline have?
64 active NXX prefixes are anchored to this rate center in NANPA records, held by 14 carriers.
Is a call from a Brookline prefix really from Brookline?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.