Local Calling Guide
Area code/prefix search
Chicago Zone 01-Monroe, IL
NPA-NXX | BLOCK | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|
312-997 | 6 | CHCGILMODS1 | 9329 ILLINOIS BELL TEL CO | 358 | |||
312-997 | 7 | CHCGILMODS1 | 9329 ILLINOIS BELL TEL CO | 358 | |||
312-997 | 8 | CHCGILMODS1 | 9329 ILLINOIS BELL TEL CO | 358 | |||
312-997 | 9 | CHCGILMODS1 | 9329 ILLINOIS BELL TEL CO | 358 |
Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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