Area codes · +1
Area code 918
Area code 918 is centred on Tulsa, Oklahoma. We hold 5,618 allocated blocks for it across 181 rate centres, split 45% mobile, 42% landline and 12% VoIP.
The other area codes laid over 918
Area code 918 does not have Tulsa to itself. 1 other code — 539 — 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.
5391,916 blocks, 117 rate centres, mostly mobile
Each holds its own blocks and its own carrier mix, so a 918 number and a 539 number from the same street can report different line types. Filtering Tulsa by area code needs all 2 of them.
918 is not confined to Tulsa itself: its blocks sit across 181 rate centres, named in the table below.
Oklahoma is split across 5 area codes — 405, 918, 580, 539, 572. By allocated blocks 918 is the second largest of them, holding 29% of the Oklahoma total.
Where 918 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why Bartlesvl and Sand Spg 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 918 |
|---|---|---|
| Tulsa | 1,973 | 35% |
| Muskogee | 257 | 5% |
| Bartlesvl | 226 | 4% |
| Tahlequah | 154 | 3% |
| Brokenarrw | 149 | 3% |
| Mcalester | 144 | 3% |
| Miami | 118 | 2% |
| Jenks | 116 | 2% |
| Catoosa | 87 | 2% |
| Poteau | 86 | 2% |
| Owasso | 80 | 1% |
| Cushing | 75 | 1% |
| Vinita | 73 | 1% |
| Sallisaw | 69 | 1% |
| Claremore | 67 | 1% |
| Pryor | 67 | 1% |
| Sperry | 65 | 1% |
| Grove | 56 | 1% |
| Okmulgee | 56 | 1% |
| Eufaula | 55 | 1% |
| Sand Spg | 46 | 1% |
| Sapulpa | 46 | 1% |
| Henryetta | 44 | 1% |
| Wilburton | 44 | 1% |
157 further rate centres in 918 hold fewer blocks than these.
Carriers holding the most 918 blocks
Southwestern Bell1,052 blocks
AT&T Wireless766 blocks
Onvoy427 blocks
Verizon Wireless413 blocks
T-Mobile USA, Inc.381 blocks
T-Mobile Usa, Inc.317 blocks
The largest holder, Southwestern Bell, has 19% of the code.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 918 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 918 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 918?
Area code 918 covers Tulsa, Oklahoma. It is not the only code there: 539 is an overlay on the same rate centres, so a Tulsa, Oklahoma number can start with any of them.
Is a 918 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 918 the split runs 45% mobile, 42% landline and 12% VoIP, so mobile is the most likely single answer.
Which carriers hold 918 numbers?
The largest holders are Southwestern Bell, AT&T Wireless, Onvoy. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 918 numbers are there?
The code holds 5,618 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 918 covers on the order of 5,618,000 possible numbers — most of which have never been issued to anyone.