Area codes · +1
Area code 508
Area code 508 is centred on Framingham, Massachusetts. We hold 5,125 allocated blocks for it across 94 rate centres, split 26% mobile, 63% landline and 11% VoIP.
The other area codes laid over 508
Area code 508 does not have Framingham to itself. 1 other code — 774 — serves the same rate centres, laid over the same ground rather than dividing it. That is an overlay: a new code added when the old one ran out of numbers, covering the same streets. Two neighbours can hold different area codes, so the code says roughly when a number was issued rather than where it sits.
7745,312 blocks, 85 rate centres, mostly mobile
Each holds its own blocks and its own carrier mix, so a 508 number and a 774 number from the same street can report different line types. Filtering Framingham by area code needs all 2 of them.
508 is not confined to Framingham itself: its blocks sit across 94 rate centres, named in the table below.
Massachusetts is split across 9 area codes — 978, 781, 774, 508, 413, 617 and others. By allocated blocks 508 is the 4th largest of them, holding 13% of the Massachusetts total.
Where 508 numbers are concentrated
Rate-centre names are reproduced as NANPA records them. The agency truncates them to ten characters, so longer names appear shortened elsewhere on this site.
| Rate centre | Blocks | Share of 508 |
|---|---|---|
| Framingham | 433 | 8% |
| Worcester | 375 | 7% |
| Brockton | 235 | 5% |
| Fall River | 220 | 4% |
| Marlboro | 205 | 4% |
| Newbedford | 205 | 4% |
| Natick | 201 | 4% |
| Taunton | 138 | 3% |
| Westboro | 138 | 3% |
| Franklin | 127 | 2% |
| Hopkinton | 121 | 2% |
| Walpole | 111 | 2% |
| Hyannis | 100 | 2% |
| Attleboro | 94 | 2% |
| Milford | 91 | 2% |
| Mansfield | 88 | 2% |
| Cataumet | 85 | 2% |
| Northboro | 84 | 2% |
| Falmouth | 70 | 1% |
| Bridgewtr | 69 | 1% |
| Easton | 69 | 1% |
| Nantucket | 67 | 1% |
| Foxboro | 65 | 1% |
| Ebridgewtr | 60 | 1% |
70 further rate centres in 508 hold fewer blocks than these.
Carriers holding the most 508 blocks
Verizon New England Inc.866 blocks
Verizon Wireless335 blocks
Verizon New England Inc. (Verizon Communications)305 blocks
Onvoy297 blocks
AT&T Wireless280 blocks
Mcimetro Access Transmission Services Llc269 blocks
The largest holder, Verizon New England Inc., has 17% of the code.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 508 number still reports the carrier it started with. Closing that gap needs a live query against the routing database. How line type is derived.
Check a single 508 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 508?
Area code 508 covers Framingham, Massachusetts. It is not the only code there: 774 is an overlay on the same rate centres, so a Framingham, Massachusetts number can start with any of them.
Is a 508 number a mobile or a landline?
It can be either, and the digits do not say which. North American mobile and landline numbers share the same ranges, so the answer comes from the carrier holding the block. In 508 the split runs 26% mobile, 63% landline and 11% VoIP, so landline is the most likely single answer.
Which carriers hold 508 numbers?
The largest holders are Verizon New England Inc., Verizon Wireless, Verizon New England Inc. (Verizon Communications). That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 508 numbers are there?
The code holds 5,125 allocated blocks in our copy of the numbering plan. A block is 1,000 or 10,000 consecutive numbers depending on how deeply it has been pooled, so 508 covers on the order of 5,125,000 possible numbers — most of which have never been issued to anyone.