Area code 670
Where is area code 670?
Saipan, Rota and Tinian, Northern Mariana Islands
Local time: … (Chamorro Standard Time)
| Territory | Northern Mariana Islands |
|---|---|
| Country | United States |
| Main cities | Saipan, Rota and Tinian |
| Time zone | Chamorro Standard Time |
| Overlay area codes | None |
| In service since | 1997 |
| Assigned prefixes | 35 |
| Dialing format | (670) XXX-XXXX · +1 670 XXX XXXX from abroad |
Look up a 670 number
Cities and towns in area code 670
Listed by how many phone prefixes (the 3 digits after the area code) are assigned to each place in 670.
- Saipan, MP (31)
- Rota, MP (2)
- Tinian, MP (2)
Phone companies in area code 670
The carriers that hold the most 670 prefixes. People can move their number to another carrier, so this shows who first issued a number, not who serves it today.
| Prefixes | Carrier |
|---|---|
| 15 | Micronesian Telecommunications |
| 15 | Pti Pacifica |
| 5 | Guam Wireless Telephone |
All 35 prefixes in area code 670
Pick the 3 digits after the area code to see that prefix’s city and carrier.
- 233
- 234
- 235
- 236
- 237
- 256
- 284
- 285
- 286
- 287
- 288
- 321
- 322
- 323
- 328
- 433
- 483
- 484
- 488
- 532
- 588
- 664
- 682
- 783
- 785
- 788
- 789
- 838
- 848
- 858
- 868
- 878
- 888
- 898
- 989
Questions
- Where is area code 670?
- Area code 670 is in Northern Mariana Islands. It serves Saipan, Rota and Tinian.
- What time zone is area code 670 in?
- Area code 670 uses Chamorro Standard Time.
- Is a call from area code 670 a scam?
- The area code alone doesn’t tell you. Most calls from 670 are ordinary local calls, but scammers can fake (“spoof”) any number. If you don’t recognize a 670 number, let it go to voicemail.
- When did area code 670 start?
- 670 went into service in 1997.
- Can a 670 number be outside Northern Mariana Islands?
- Yes. People keep their numbers when they move and when they switch to mobile or internet phone services, so a 670 caller can be anywhere.