Local Calling Guide
Area code/prefix search
NPA: 309 [Rate centres in NPA 309] [Dial plan for NPA 309]
NXX: 457
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
309-457 | A | Monmouth | IL | MNMOILXDDS0 | 1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | 977 |
Last updated: Wed, 20 Nov 2024 21:20:06 UTC
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