Local Calling Guide
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Switch: BLTMMDDN
| Switch (link to prefixes) | Switch name | Company |
|---|---|---|
| BLTMMDDN00W | BALTIMORE | |
| BLTMMDDN2MD | 508J CENTURYLINK COMMUNICATIONS, LLC | |
| BLTMMDDN4MD | 2554 GLOBAL NAPS SOUTH, INC. - MD | |
| BLTMMDDNDS2 | BALTIMORE |
Last updated: Sat, 01 Aug 2026 03:19:33 UTC
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