Area codes · +1
Area code 661
Area code 661 is centred on Bakersfield, California. We hold 5,776 allocated blocks for it across 32 rate centres, split 47% mobile, 40% landline and 13% VoIP.
The towns inside area code 661
Area code 661 is not a city code. It covers 32 separate rate centres — billing areas, each its own local calling zone. The largest of them are named in the table below.
That matters twice over. A call between two 661 numbers is not necessarily a local call, because they can sit in different rate centres. And a code this wide narrows a subscriber to a region rather than a town.
California is split across 40 area codes — 657, 707, 559, 209, 530, 661 and others. By allocated blocks 661 is the 17th largest of them, holding 3% of the California total.
Where 661 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why Bkfd Main and Pldl Pldl 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 661 |
|---|---|---|
| Bkfd Main | 1,242 | 22% |
| Pldl Pldl | 791 | 14% |
| Snca Nhcs | 493 | 9% |
| Lancaster | 457 | 8% |
| Bkfd South | 409 | 7% |
| Snca Sgcc | 259 | 4% |
| Bkfd North | 243 | 4% |
| Arvin | 222 | 4% |
| Delano | 219 | 4% |
| Tehachapi | 128 | 2% |
| Taft | 113 | 2% |
| Mcfarland | 86 | 1% |
| Mojave | 83 | 1% |
| Lebec | 77 | 1% |
| Pldl Agdl | 77 | 1% |
| Edwards | 76 | 1% |
| Shafter | 75 | 1% |
| Wasco | 75 | 1% |
| Lakehughes | 68 | 1% |
| Earlimart | 64 | 1% |
| Rosamond | 63 | 1% |
| Big Butte | 59 | 1% |
| Hi Vista | 58 | 1% |
| Pldl Lnvy | 48 | 1% |
8 further rate centres in 661 hold fewer blocks than these.
Carriers holding the most 661 blocks
AT&T Wireless741 blocks
Onvoy713 blocks
T-Mobile USA, Inc.631 blocks
Pacific Bell607 blocks
Verizon Wireless543 blocks
Bandwidth336 blocks
The largest holder, AT&T Wireless, 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 661 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 661 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 661?
Area code 661 is centred on Bakersfield, California and spans 32 rate centres, so it covers a region rather than a town.
Is a 661 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 661 the split runs 47% mobile, 40% landline and 13% VoIP, so mobile is the most likely single answer.
Which carriers hold 661 numbers?
The largest holders are AT&T Wireless, Onvoy, T-Mobile USA, Inc.. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 661 numbers are there?
The code holds 5,776 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 661 covers on the order of 5,776,000 possible numbers — most of which have never been issued to anyone.