Dedham, MA — rate center
- State
- Massachusetts
- Active prefixes
- 41
- Carriers
- 12
- Pooled prefixes
- 32
- LATA
- 128
- Metro area
- Boston-Cambridge-Newton, MA-NH MSA
In NANP numbering, Dedham, Massachusetts is a rate center — the anchor point for local numbers. It is reached through 339, 617, 781 (multiple area codes serve it).
NANPA records show 41 active prefixes here, held by 12 different carriers. Pooling applies to 32 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 339, 617, 781 all serve this territory, two Dedham numbers can look completely different while being neighbors — check the prefix, not just the area code.
As always with US numbering: a prefix anchored to Dedham tells you where the block was issued. The person calling may have ported the number, moved away, or be spoofing it entirely — verify callers through independently found contact details.
Prefixes anchored to Dedham
| Prefix | Code holder | Pooled |
|---|---|---|
| 617-365 | NEW CINGULAR WIRELESS PCS, LLC - DC | No |
| 617-462 | NEW CINGULAR WIRELESS PCS, LLC - DC | No |
| 617-640 | NEW CINGULAR WIRELESS PCS, LLC - DC | No |
| 617-759 | NEW CINGULAR WIRELESS PCS, LLC - DC | No |
FAQ
What area code is Dedham, MA?
Dedham is served by 3 area codes — 339, 617, 781 — which overlay the same territory.
How many prefixes does Dedham have?
41 active NXX prefixes are anchored to this rate center in NANPA records, held by 12 carriers.
Is a call from a Dedham prefix really from Dedham?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.