Local Calling Guide
Area code/prefix search
NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]
NXX: 479
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
443-479 | A | Waterloo (Washington DC LATA) | MD | LARLMDDYDS0 | 9212 VERIZON MARYLAND, INC. | 236 |
Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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