Local Calling Guide
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Switch: HSTNTXPB
| Switch (link to prefixes) | Switch name | Company |
|---|---|---|
| HSTNTXPB01T | HOUSTON | |
| HSTNTXPB6MD | 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | |
| HSTNTXPBDS0 | HOUSTON | |
| HSTNTXPBDS1 | HOUSTON |
Last updated: Tue, 31 Mar 2026 13:56:49 UTC
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