Local Calling Guide
Area code/prefix search
NPA: 857 [Rate centres in NPA 857] [Dial plan for NPA 857]
NXX: 557
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
857-557 | A | Boston | MA | CMBRMABETMD | 321J HD CARRIER LLC | 128 | |||
857-557 | 0 | Boston | MA | BSTPMALLDS3 | 892D ONVOY, LLC - MA | 128 | |||
857-557 | 1 | Boston | MA | CMBRMABEEMD | 116E INTRADO COMMUNICATIONS, LLC | 128 | |||
857-557 | 2 | Boston | MA | CMBRMAORDS0 | 7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA | 128 | |||
857-557 | 3 | Boston | MA | BSTPMALLDS3 | 892D ONVOY, LLC - MA | 128 | |||
857-557 | 4 | Boston | MA | BSTPMALLDS3 | 892D ONVOY, LLC - MA | 128 | |||
857-557 | 5 | Boston | MA | BSTPMALLDS3 | 892D ONVOY, LLC - MA | 128 | |||
857-557 | 6 | Boston | MA | BSTPMALLDS3 | 892D ONVOY, LLC - MA | 128 | |||
857-557 | 7 | Boston | MA | BSTPMALLDS3 | 892D ONVOY, LLC - MA | 128 | |||
857-557 | 8 | Boston | MA | BSTPMALLDS3 | 892D ONVOY, LLC - MA | 128 | |||
857-557 | 9 | Boston | MA | CMBRMABETMD | 321J HD CARRIER LLC | 128 |
Last updated: Wed, 20 Nov 2024 21:20:06 UTC
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