Local Calling Guide
Area code/prefix search
Switch: BLTMMDCHDS6
- Switch name: BALTIMORE
- Switch type: 5E
- See all switches at this location
NPA-NXX | BLOCK | Rate Centre | Region | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|
410-231 | 5 | Solomons | MD | 7421 AT&T - LOCAL | 238 | 2007-08-06 | ||
443-392 | A | Baltimore | MD | 7421 AT&T - LOCAL | 238 | |||
443-392 | 9 | Baltimore | MD | 7421 AT&T - LOCAL | 238 |
Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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