Local Calling Guide
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Switch: SLKDUTYI
| Switch (link to prefixes) | Switch name | Company |
|---|---|---|
| SLKDUTYI3MD | 3231 LEVEL 3 COMMUNICATIONS, LLC - UT | |
| SLKDUTYI4MD | 073H TELNYX LLC | |
| SLKDUTYI5MD | 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | |
| SLKDUTYIAMD | 597F VOIP INNOVATIONS, LLC |
Last updated: Sat, 10 Oct 2026 15:24:20 UTC
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