AdSense placeholder
Paste your AdSense script + ad units in src/layout_bottom.php, then set $ads_enabled = true.
MCI WORLDCOM COMMUNICATIONS, INC. - MI
Operating Company Number (OCN): 7279
Is this carrier legit?
Carriers are telecom operating companies that own number blocks (NPA-NXX). A number showing this carrier does not guarantee the caller is that company — scam calls can spoof caller ID.
Ad Unit
Optional ad placement.Number blocks (sample)
| State | NPA | NXX | Rate center | Open |
|---|---|---|---|---|
| MI | 248 | 209 | PONTIAC | Prefix |
| MI | 248 | 218 | ROCHESTER | Prefix |
| MI | 248 | 260 | AUBURN HTS | Prefix |
| MI | 248 | 270 | AUBURN HTS | Prefix |
| MI | 248 | 365 | PONTIAC | Prefix |
| MI | 248 | 397 | ROYAL OAK | Prefix |
| MI | 248 | 430 | BIRMINGHAM | Prefix |
| MI | 248 | 581 | ROYAL OAK | Prefix |
| MI | 248 | 697 | NORTHVILLE | Prefix |
| MI | 248 | 702 | W BLOOMFLD | Prefix |
| MI | 248 | 712 | BIRMINGHAM | Prefix |
| MI | 248 | 727 | SOUTHFIELD | Prefix |
| MI | 248 | 728 | SOUTHFIELD | Prefix |
| MI | 248 | 729 | TROY | Prefix |
| MI | 248 | 764 | TROY | Prefix |
| MI | 248 | 936 | SOUTHFIELD | Prefix |
| MI | 248 | 957 | FARMINGTON | Prefix |
| MI | 248 | 971 | BIRMINGHAM | Prefix |
| MI | 248 | 973 | W BLOOMFLD | Prefix |
| MI | 248 | 991 | FARMINGTON | Prefix |
| MI | 313 | 230 | DETROITZN1 | Prefix |
| MI | 313 | 731 | DETROITZN3 | Prefix |
| MI | 313 | 732 | DETROITZN2 | Prefix |
| MI | 313 | 733 | DETROITZN3 | Prefix |
| MI | 313 | 736 | DETROITZN4 | Prefix |
| MI | 313 | 743 | DETROITZN2 | Prefix |
| MI | 313 | 749 | DETROITZN6 | Prefix |
| MI | 313 | 766 | DETROITZN5 | Prefix |
| MI | 313 | 768 | DETROITZN6 | Prefix |
| MI | 313 | 915 | DETROITZN4 | Prefix |
| MI | 313 | 952 | DETROITZN5 | Prefix |
| MI | 313 | 989 | DETROITZN1 | Prefix |
| MI | 586 | 439 | ROSEVILLE | Prefix |
| MI | 586 | 467 | CENTERLINE | Prefix |
| MI | 586 | 722 | WARREN | Prefix |
| MI | 586 | 782 | CENTERLINE | Prefix |
| MI | 586 | 819 | WARREN | Prefix |
| MI | 586 | 913 | MT CLEMENS | Prefix |
| MI | 586 | 930 | UTICA | Prefix |
| MI | 734 | 205 | ANN ARBOR | Prefix |
| MI | 734 | 265 | MONROE | Prefix |
| MI | 734 | 286 | WYANDOTTE | Prefix |
| MI | 734 | 288 | WYANDOTTE | Prefix |
| MI | 734 | 304 | TRENTON | Prefix |
| MI | 734 | 329 | WAYNE | Prefix |
| MI | 734 | 352 | ANN ARBOR | Prefix |
| MI | 734 | 452 | LIVONIA | Prefix |
| MI | 734 | 456 | PLYMOUTH | Prefix |
| MI | 734 | 469 | LIVONIA | Prefix |
| MI | 734 | 585 | ANN ARBOR | Prefix |
| MI | 734 | 629 | WAYNE | Prefix |
| MI | 734 | 672 | TRENTON | Prefix |
| MI | 734 | 784 | ROMULUS | Prefix |
| MI | 734 | 985 | YPSILANTI | Prefix |
| MI | 810 | 224 | BRIGHTON | Prefix |
| MI | 810 | 272 | LAPEER | Prefix |
| MI | 810 | 275 | FLINT | Prefix |
| MI | 810 | 344 | GRANDBLANC | Prefix |
| MI | 810 | 354 | FENTON | Prefix |
| MI | 810 | 368 | CLIMTMORRS | Prefix |
| MI | 810 | 956 | PORT HURON | Prefix |
| MI | 906 | 464 | ISHPEMING | Prefix |
| MI | 989 | 484 | SAGINAW | Prefix |
| MI | 989 | 931 | FARWELL | Prefix |
Showing up to 2,000 blocks (cap for performance).
SEO keywords covered
carrier lookup • operating company number • ocn lookup • who owns this number • npa nxx • rate center
© 2026 Phone Directory.
Light theme (AdSense-ready).