Area codes · +1
Area code 678
Area code 678 is centred on Atlanta. We hold 6,991 allocated blocks for it across 42 rate centres, split 42% mobile, 52% landline and 6% VoIP.
The other area codes laid over 678
Area code 678 does not have Atlanta to itself. 4 other codes — 404, 470, 770, 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.
4044,672 blocks, 2 rate centres, mostly mobile
4708,641 blocks, 41 rate centres, mostly mobile
7704,130 blocks, 43 rate centres, mostly landline
9431,470 blocks, 35 rate centres, mostly VoIP
Each holds its own blocks and its own carrier mix, so a 678 number and a 404 number from the same street can report different line types. Filtering Atlanta by area code needs all 5 of them.
678 is not confined to Atlanta itself: its blocks sit across 42 rate centres, named in the table below.
Georgia is split across 10 area codes — 470, 678, 912, 706, 229, 404 and others. By allocated blocks 678 is the second largest of them, holding 14% of the Georgia total.
Where 678 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why Atlanta Nw and Gainesvl 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 678 |
|---|---|---|
| Atlanta Ne | 2,565 | 37% |
| Atlanta Nw | 1,230 | 18% |
| Atlanta | 655 | 9% |
| Atlanta So | 592 | 8% |
| Gainesvl | 276 | 4% |
| Newnan | 168 | 2% |
| Conyers | 144 | 2% |
| Buford | 125 | 2% |
| Winder | 123 | 2% |
| Cumming | 115 | 2% |
| Adairsvl | 101 | 1% |
| Griffin | 99 | 1% |
| Carrollton | 88 | 1% |
| Covington | 79 | 1% |
| Cartersvl | 56 | 1% |
| Villa Rica | 54 | 1% |
| Cedartown | 45 | 1% |
| Floweybrch | 44 | 1% |
| Clermont | 34 | 0% |
| Socialcrcl | 34 | 0% |
| Bogartsthm | 33 | 0% |
| Concord | 33 | 0% |
| Rockmart | 33 | 0% |
| Lula | 23 | 0% |
18 further rate centres in 678 hold fewer blocks than these.
Carriers holding the most 678 blocks
Verizon Wireless686 blocks
T-Mobile USA, Inc.611 blocks
Paetec Itel, Llc602 blocks
Bandwidth515 blocks
Powertel Atlanta Licenses, Inc.491 blocks
AT&T Wireless427 blocks
No carrier holds more than 10% of 678; the blocks are spread thin across many companies.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 678 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 678 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 678?
Area code 678 covers Atlanta. It is not the only code there: 404, 470, 770, 943 are overlays on the same rate centres, so a Atlanta number can start with any of them.
Is a 678 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 678 the split runs 42% mobile, 52% landline and 6% VoIP, so landline is the most likely single answer.
Which carriers hold 678 numbers?
The largest holders are Verizon Wireless, T-Mobile USA, Inc., Paetec Itel, Llc. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 678 numbers are there?
The code holds 6,991 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 678 covers on the order of 6,991,000 possible numbers — most of which have never been issued to anyone.