Local Calling Guide
Area code/prefix search
NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]
NXX: 638
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
443-638 | A | Ellicott City | MD | BLTMMDDN4MD | 2554 GLOBAL NAPS SOUTH, INC. - MD | 238 |
Last updated: Wed, 20 Nov 2024 21:20:06 UTC
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