Area codes · +1
Area code 870
Area code 870 is centred on Jonesboro, Arkansas. We hold 5,731 allocated blocks for it across 245 rate centres, split 45% mobile, 42% landline and 14% VoIP.
The other area codes laid over 870
Area code 870 does not have Jonesboro to itself. 1 other code — 327 — 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.
327176 blocks, 37 rate centres, mostly VoIP
Each holds its own blocks and its own carrier mix, so a 870 number and a 327 number from the same street can report different line types. Filtering Jonesboro by area code needs all 2 of them.
870 is not confined to Jonesboro itself: its blocks sit across 245 rate centres, named in the table below.
Arkansas is split across 4 area codes — 870, 501, 479, 327. By allocated blocks 870 is the largest of them, holding 37% of the Arkansas total.
Where 870 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why Forrest Cy and Blythevl 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 870 |
|---|---|---|
| Jonesboro | 336 | 6% |
| Pine Bluff | 309 | 5% |
| El Dorado | 183 | 3% |
| Harrison | 168 | 3% |
| Batesville | 122 | 2% |
| Arkadlphia | 115 | 2% |
| Forrest Cy | 112 | 2% |
| Paragould | 103 | 2% |
| Blythevl | 102 | 2% |
| W Memphis | 101 | 2% |
| Hope | 95 | 2% |
| Camden | 83 | 1% |
| Helena | 81 | 1% |
| Magnolia | 78 | 1% |
| Texarkana | 71 | 1% |
| Newport | 65 | 1% |
| Nashville | 62 | 1% |
| Berryville | 59 | 1% |
| Wynne | 54 | 1% |
| Ashdown | 53 | 1% |
| Walnut Rdg | 50 | 1% |
| Brinkley | 49 | 1% |
| Fordyce | 49 | 1% |
| Osceola | 48 | 1% |
221 further rate centres in 870 hold fewer blocks than these.
Carriers holding the most 870 blocks
AT&T Wireless931 blocks
Southwestern Bell664 blocks
Onvoy580 blocks
Verizon Wireless569 blocks
Windstream Arkansas, Inc.279 blocks
Level 3 Communications, Llc - Ar (Centurylink, Inc)235 blocks
The largest holder, AT&T Wireless, has 16% of the code.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 870 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 870 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 870?
Area code 870 covers Jonesboro, Arkansas. It is not the only code there: 327 is an overlay on the same rate centres, so a Jonesboro, Arkansas number can start with any of them.
Is a 870 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 870 the split runs 45% mobile, 42% landline and 14% VoIP, so mobile is the most likely single answer.
Which carriers hold 870 numbers?
The largest holders are AT&T Wireless, Southwestern Bell, Onvoy. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 870 numbers are there?
The code holds 5,731 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 870 covers on the order of 5,731,000 possible numbers — most of which have never been issued to anyone.