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FIRST COMMUNICATIONS LLC - IL
Operating Company Number (OCN): 4604
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 |
|---|---|---|---|---|
| IL | 224 | 233 | SKOKIE | Prefix |
| IL | 224 | 265 | ELK GROVE | Prefix |
| IL | 224 | 320 | LAKEZURICH | Prefix |
| IL | 224 | 359 | ELGIN | Prefix |
| IL | 224 | 533 | DEERFIELD | Prefix |
| IL | 224 | 927 | NORTHBROOK | Prefix |
| IL | 312 | 216 | CHICGOZN01 | Prefix |
| IL | 312 | 247 | CHICGOZN01 | Prefix |
| IL | 312 | 334 | CHICGOZN01 | Prefix |
| IL | 312 | 673 | CHICGOZN01 | Prefix |
| IL | 312 | 676 | CHICGOZN01 | Prefix |
| IL | 312 | 784 | CHICGOZN01 | Prefix |
| IL | 312 | 870 | CHICGOZN01 | Prefix |
| IL | 331 | 456 | ROSELLE | Prefix |
| IL | 630 | 273 | PLANO | Prefix |
| IL | 630 | 387 | ELBURN | Prefix |
| IL | 630 | 614 | WHEATON | Prefix |
| IL | 630 | 615 | NAPERVILLE | Prefix |
| IL | 630 | 630 | OSWEGO | Prefix |
| IL | 630 | 636 | OSWEGO | Prefix |
| IL | 630 | 952 | AURORA | Prefix |
| IL | 708 | 249 | HOMEWOOD | Prefix |
| IL | 708 | 286 | WESTERNSPG | Prefix |
| IL | 708 | 576 | OAK LAWN | Prefix |
| IL | 708 | 593 | BELLWOOD | Prefix |
| IL | 773 | 308 | CHICGOZN03 | Prefix |
| IL | 773 | 328 | CHICGOZN04 | Prefix |
| IL | 773 | 336 | CHICGOZN09 | Prefix |
| IL | 773 | 341 | CHICGOZN10 | Prefix |
| IL | 773 | 357 | CHICGOZN11 | Prefix |
| IL | 773 | 605 | CHICGOZN02 | Prefix |
| IL | 773 | 705 | CHICGOZN10 | Prefix |
| IL | 773 | 861 | CHICGOZN04 | Prefix |
| IL | 773 | 987 | CHICGOZN10 | Prefix |
| IL | 815 | 215 | NEW LENOX | Prefix |
| IL | 815 | 330 | CRESCENTCY | Prefix |
| IL | 815 | 408 | UTICA | Prefix |
| IL | 815 | 413 | MORRIS | Prefix |
| IL | 815 | 418 | MANHATTAN | Prefix |
| IL | 815 | 430 | MCHENRY | Prefix |
| IL | 815 | 460 | JOLIET | Prefix |
| IL | 815 | 487 | PLAINFIELD | Prefix |
| IL | 815 | 502 | WOODSTOCK | Prefix |
| IL | 815 | 504 | GARDNER | Prefix |
| IL | 815 | 512 | LOCKPORT | Prefix |
| IL | 815 | 518 | COAL CITY | Prefix |
| IL | 815 | 602 | KANKAKEE | Prefix |
| IL | 815 | 606 | OTTAWA | Prefix |
| IL | 847 | 483 | ARLIGTNHTS | Prefix |
| IL | 847 | 930 | ELGIN | Prefix |
| IL | 847 | 939 | PARK RIDGE | Prefix |
| IN | 219 | 230 | HAMMOND | Prefix |
| IN | 219 | 354 | E CHICAGO | 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
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