Detroit Zone 03, MI — rate center
Phone numbers "from Detroit Zone 03" are, precisely speaking, numbers whose prefixes are anchored to the Detroit Zone 03 rate center of Michigan, under 313.
50 central-office prefixes are currently anchored to this rate center across 11 carriers. 36 prefixes participate in thousands-block pooling, so blocks of 1,000 numbers are shared between carriers.
The rate center belongs to the Detroit-Warren-Dearborn, MI Metropolitan Statistical Area. Routing-wise it sits in LATA 340.
Treat this data as geography of the number, not of the caller: porting, VoIP and caller-ID spoofing all detach the two. When a call matters, hang up and call back through an official number.
Prefixes anchored to Detroit Zone 03
| Prefix | Code holder | Pooled |
|---|---|---|
| 313-252 | MICHIGAN BELL TEL CO | No |
| 313-257 | METROPCS, INC. | Yes |
| 313-281 | LEVEL 3 COMMUNICATIONS, LLC - MI | Yes |
| 313-305 | PAETEC ITEL, LLC | Yes |
| 313-312 | PAETEC ITEL, LLC | Yes |
| 313-314 | BANDWIDTH.COM CLEC, LLC - MI | Yes |
| 313-327 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | Yes |
| 313-334 | LEVEL 3 COMMUNICATIONS, LLC - MI | Yes |
| 313-346 | LEVEL 3 COMMUNICATIONS, LLC - MI | Yes |
| 313-349 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | Yes |
| 313-351 | TELEPORT COMMUNICATIONS AMERICA, LLC - MI | Yes |
| 313-356 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | Yes |
| 313-365 | MICHIGAN BELL TEL CO | Yes |
| 313-366 | MICHIGAN BELL TEL CO | No |
| 313-368 | MICHIGAN BELL TEL CO | No |
| 313-369 | MICHIGAN BELL TEL CO | No |
| 313-419 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | Yes |
| 313-422 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | Yes |
| 313-454 | METROPCS, INC. | Yes |
| 313-455 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | Yes |
| 313-504 | ONVOY, LLCV - MI | Yes |
| 313-519 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | Yes |
| 313-564 | MICHIGAN BELL TEL CO | Yes |
| 313-591 | BANDWIDTH.COM CLEC, LLC - MI | Yes |
| 313-603 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | Yes |
| 313-620 | BOOST SUBSCRIBERCO L.L.C. | Yes |
| 313-634 | ONVOY, LLCV - MI | Yes |
| 313-644 | BANDWIDTH.COM CLEC, LLC - MI | Yes |
| 313-661 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | Yes |
| 313-698 | ONVOY, LLCV - MI | Yes |
| 313-707 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | Yes |
| 313-731 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | Yes |
| 313-733 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | Yes |
| 313-775 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | Yes |
| 313-777 | ONVOY, LLCV - MI | Yes |
| 313-788 | PEERLESS NETWORK OF MICHIGAN, LLC - MI | Yes |
| 313-826 | TELEPORT COMMUNICATIONS AMERICA, LLC - MI | Yes |
| 313-852 | MICHIGAN BELL TEL CO | No |
| 313-865 | MICHIGAN BELL TEL CO | No |
| 313-866 | MICHIGAN BELL TEL CO | No |
| 313-867 | MICHIGAN BELL TEL CO | No |
| 313-868 | MICHIGAN BELL TEL CO | No |
| 313-869 | MICHIGAN BELL TEL CO | No |
| 313-883 | MICHIGAN BELL TEL CO | Yes |
| 313-891 | MICHIGAN BELL TEL CO | No |
| 313-892 | MICHIGAN BELL TEL CO | No |
| 313-893 | MICHIGAN BELL TEL CO | No |
| 313-956 | MICHIGAN BELL TEL CO | No |
| 313-957 | MICHIGAN BELL TEL CO | Yes |
| 313-985 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | Yes |
FAQ
What area code is Detroit Zone 03, MI?
Detroit Zone 03 numbers use area code 313.
How many prefixes does Detroit Zone 03 have?
50 active NXX prefixes are anchored to this rate center in NANPA records, held by 11 carriers.
Is a call from a Detroit Zone 03 prefix really from Detroit Zone 03?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.