Local Calling Guide
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Switch: DTRTMIBA
| Switch (link to prefixes) | Switch name | Company |
|---|---|---|
| DTRTMIBADS0 | DETROIT | 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
| DTRTMIBADS1 | DETROIT | 7421 AT&T - LOCAL |
| DTRTMIBADS6 | DETROIT | 948H AIRUS, INC. - MI |
| DTRTMIBAGT0 | ||
| DTRTMIBAGT1 | ||
| DTRTMIBASMD | 516C AT&T CORP. | |
| DTRTMIBATMD | ||
| DTRTMIBAUMD | 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
Last updated: Sun, 07 Dec 2025 22:02:11 UTC
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