Local Calling Guide
Area code/prefix search
NPA: 857 [Rate centres in NPA 857] [Dial plan for NPA 857]
NXX: 475
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
857-475 | A | Chelsea | MA | CMBRMABEX6X | 566J RADIANTIQ LLC | 128 | 2021-06-03 | ||
857-475 | 0 | Chelsea | MA | CMBRMABENMD | 624H ONVOY SPECTRUM, LLC | 128 | 2021-11-27 | ||
857-475 | 1 | Chelsea | MA | CMBRMABENMD | 624H ONVOY SPECTRUM, LLC | 128 | 2021-11-27 | ||
857-475 | 7 | Chelsea | MA | CMBRMABEX6X | 566J RADIANTIQ LLC | 128 | 2021-06-03 |
Last updated: Wed, 01 Jun 2022 03:09:23 UTC
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