Local Calling Guide
Area code/prefix search
NPA: 309 [Rate centres in NPA 309] [Dial plan for NPA 309]
NXX: 378
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
309-378 | A | Downs | IL | DWNSILXDRS0 | 1015 FRONTIER NORTH, INC. - IL | 366 | |||
309-378 | 0 | Downs | IL | BLTNILXDXPX | 846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | 366 | |||
309-378 | 1 | Downs | IL | DWNSILXDRS0 | 1015 FRONTIER NORTH, INC. - IL | 366 | |||
309-378 | 2 | Downs | IL | DWNSILXDRS0 | 1015 FRONTIER NORTH, INC. - IL | 366 | |||
309-378 | 3 | Downs | IL | DWNSILXDRS0 | 1015 FRONTIER NORTH, INC. - IL | 366 | |||
309-378 | 4 | Downs | IL | DWNSILXDRS0 | 1015 FRONTIER NORTH, INC. - IL | 366 | |||
309-378 | 5 | Downs | IL | BLTNILTS7MD | 145J TERRA NOVA TELECOM INC. | 366 | |||
309-378 | 6 | Downs | IL | BLTNILXDXHY | 624H ONVOY SPECTRUM, LLC | 366 | |||
309-378 | 8 | Downs | IL | BLTNILATVMD | 6115 LEVEL 3 COMMUNICATIONS, LLC - IL | 366 | |||
309-378 | 9 | Downs | IL | BLTNILTSYMD | 495J STRATUS NETWORKS | 366 |
Last updated: Wed, 20 Nov 2024 21:20:06 UTC
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