Local Calling Guide
Area code/prefix search
NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]
NXX: 612
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
443-612 | A | Catonsville | MD | CTVLMDCTDS0 | 9212 VERIZON MARYLAND, INC. | 238 |
Last updated: Fri, 22 Mar 2024 03:02:44 UTC
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