Area codes · +1
Area code 205
Area code 205 is centred on Birmingham, Alabama. We hold 5,866 allocated blocks for it across 71 rate centres, split 39% mobile, 50% landline and 11% VoIP.
The other area codes laid over 205
Area code 205 does not have Birmingham to itself. 1 other code — 659 — 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.
6591,666 blocks, 64 rate centres, mostly VoIP
Each holds its own blocks and its own carrier mix, so a 205 number and a 659 number from the same street can report different line types. Filtering Birmingham by area code needs all 2 of them.
205 is not confined to Birmingham itself: its blocks sit across 71 rate centres, named in the table below.
Alabama is split across 7 area codes — 256, 205, 334, 251, 938, 659 and others. By allocated blocks 205 is the second largest of them, holding 23% of the Alabama total.
Where 205 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why Centrevl and Springvl are shortened. Names are reproduced as recorded rather than expanded — the abbreviation is the key the block data is filed under.
| Rate centre | Blocks | Share of 205 |
|---|---|---|
| Birmingham | 2,300 | 39% |
| Tuscaloosa | 439 | 7% |
| Bessemer | 271 | 5% |
| Jasper | 178 | 3% |
| Alabaster | 169 | 3% |
| Clanton | 117 | 2% |
| Pell City | 101 | 2% |
| Eutaw | 99 | 2% |
| Gardendale | 89 | 2% |
| Leeds | 79 | 1% |
| Pinson | 79 | 1% |
| Centrevl | 77 | 1% |
| Dora | 73 | 1% |
| Livingston | 67 | 1% |
| Chelsea | 66 | 1% |
| Butler | 62 | 1% |
| Carbonhill | 62 | 1% |
| Graysville | 56 | 1% |
| Haleyville | 56 | 1% |
| Warrior | 56 | 1% |
| Calera | 55 | 1% |
| Springvl | 55 | 1% |
| Vincent | 55 | 1% |
| W Blocton | 55 | 1% |
47 further rate centres in 205 hold fewer blocks than these.
Carriers holding the most 205 blocks
Onvoy787 blocks
Verizon Wireless687 blocks
AT&T Wireless628 blocks
Bellsouth Telecomm Inc Dba South Central Bell Tel601 blocks
Bandwidth458 blocks
T-Mobile USA, Inc.344 blocks
The largest holder, Onvoy, has 13% of the code.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 205 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 205 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 205?
Area code 205 covers Birmingham, Alabama. It is not the only code there: 659 is an overlay on the same rate centres, so a Birmingham, Alabama number can start with any of them.
Is a 205 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 205 the split runs 39% mobile, 50% landline and 11% VoIP, so landline is the most likely single answer.
Which carriers hold 205 numbers?
The largest holders are Onvoy, Verizon Wireless, AT&T Wireless. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 205 numbers are there?
The code holds 5,866 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 205 covers on the order of 5,866,000 possible numbers — most of which have never been issued to anyone.