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| npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
| 956-748 | TX | SOUTHWESTERN BELL | 9533 | RIO HONDO | RHNDTXRHRS0 | 00/00/0000 | Prefix Type: RBOC Switch Name: Rio Hondo Switch Type: Northern Telecom DMS100 Remote Line Module LATA: Brownsville TX (568) Tandem: HRLNTXHG03T Detailed Switch Info |
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| 956-748-0 | TX | TELNYX LLC | 073H | RIO HONDO | NOCLLIKNOWN | 03/15/2021 | Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: Brownsville TX (568) Tandem: N/A Detailed Switch Info |
| 956-748-1 | TX | SOUTHWESTERN BELL | 9533 | RIO HONDO | RHNDTXRHRS0 | N/A | Prefix Type: RBOC Switch Name: Rio Hondo Switch Type: Northern Telecom DMS100 Remote Line Module LATA: Brownsville TX (568) Tandem: HRLNTXHG03T Detailed Switch Info |
| 956-748-2 | TX | SOUTHWESTERN BELL | 9533 | RIO HONDO | RHNDTXRHRS0 | N/A | Prefix Type: RBOC Switch Name: Rio Hondo Switch Type: Northern Telecom DMS100 Remote Line Module LATA: Brownsville TX (568) Tandem: HRLNTXHG03T Detailed Switch Info |
| 956-748-3 | TX | SOUTHWESTERN BELL | 9533 | RIO HONDO | RHNDTXRHRS0 | N/A | Prefix Type: RBOC Switch Name: Rio Hondo Switch Type: Northern Telecom DMS100 Remote Line Module LATA: Brownsville TX (568) Tandem: HRLNTXHG03T Detailed Switch Info |
| 956-748-4 | TX | SOUTHWESTERN BELL | 9533 | RIO HONDO | RHNDTXRHRS0 | N/A | Prefix Type: RBOC Switch Name: Rio Hondo Switch Type: Northern Telecom DMS100 Remote Line Module LATA: Brownsville TX (568) Tandem: HRLNTXHG03T Detailed Switch Info |
| 956-748-5 | TX | TWC IP ENABLED SERVICES, LLC | 793K | RIO HONDO | NOCLLIKNOWN | 12/28/2006 | Prefix Type: UNKNOWN Switch Name: N/A Switch Type: N/A LATA: Brownsville TX (568) Tandem: N/A Detailed Switch Info |
| 956-748-6 | TX | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | RIO HONDO | NOCLLIKNOWN | 09/21/2005 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Brownsville TX (568) Tandem: N/A Detailed Switch Info |
| 956-748-7 | TX | SMARTCOM TELEPHONE, LLC | 4866 | RIO HONDO | NOCLLIKNOWN | 09/23/2009 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Brownsville TX (568) Tandem: N/A Detailed Switch Info |
| 956-748-8 | TX | ONVOY, LLC - TX (Sinch) | 903C | RIO HONDO | NOCLLIKNOWN | 02/02/2024 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Brownsville TX (568) Tandem: N/A Detailed Switch Info |
| 956-748-9 | TX | SOUTHWESTERN BELL | 9533 | RIO HONDO | RHNDTXRHRS0 | N/A | Prefix Type: RBOC Switch Name: Rio Hondo Switch Type: Northern Telecom DMS100 Remote Line Module LATA: Brownsville TX (568) Tandem: HRLNTXHG03T Detailed Switch Info |