npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
815-487 | IL | FIRST COMMUNICATIONS, LLC | 460K | PLAINFIELD | CHCGILWUX6X | 00/00/0000 | Prefix Type: UNKNOWN Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A Detailed Switch Info |