Area codes · +1
Area code 404
Area code 404 covers Atlanta, Georgia. We hold 4,672 allocated blocks for it across 2 rate centres, split 49% mobile, 43% landline and 8% VoIP.
The other area codes laid over 404
Area code 404 does not have Atlanta to itself. 3 other codes — 470, 678, 943 — serve 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.
4708,641 blocks, 41 rate centres, mostly mobile
6786,991 blocks, 42 rate centres, mostly landline
9431,470 blocks, 35 rate centres, mostly VoIP
Each holds its own blocks and its own carrier mix, so a 404 number and a 470 number from the same street can report different line types. Filtering Atlanta by area code needs all 4 of them.
Georgia is split across 10 area codes — 470, 678, 912, 706, 229, 404 and others. By allocated blocks 404 is the 6th largest of them, holding 10% of the Georgia total.
Where 404 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why Xxxxxxxxxx is 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 404 |
|---|---|---|
| Atlanta | 4,661 | 100% |
| Xxxxxxxxxx | 3 | 0% |
Carriers holding the most 404 blocks
Bellsouth Telecomm Inc Dba Southern Bell Tel & Tel772 blocks
Powertel Atlanta Licenses, Inc.669 blocks
Verizon Wireless567 blocks
T-Mobile USA, Inc.478 blocks
Bellsouth Telecomm Inc Dba Southern Bell Tel & Tel (Bellsouth)308 blocks
Bandwidth302 blocks
The largest holder, Bellsouth Telecomm Inc Dba Southern Bell Tel & Tel, 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 404 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 404 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 404?
Area code 404 covers Atlanta, Georgia. It is not the only code there: 470, 678, 943 are overlays on the same rate centres, so a Atlanta, Georgia number can start with any of them.
Is a 404 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 404 the split runs 49% mobile, 43% landline and 8% VoIP, so mobile is the most likely single answer.
Which carriers hold 404 numbers?
The largest holders are Bellsouth Telecomm Inc Dba Southern Bell Tel & Tel, Powertel Atlanta Licenses, Inc., Verizon Wireless. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 404 numbers are there?
The code holds 4,672 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 404 covers on the order of 4,672,000 possible numbers — most of which have never been issued to anyone.