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| npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
| 956-523 | TX | SOUTHWESTERN BELL | 9533 | LAREDO | LARDTXLADS0 | 03/01/2001 | Prefix Type: RBOC Switch Name: LAREDO Switch Type: WECO 5ESS (Digital) LATA: San Antonio TX (566) Tandem: SNANTXCA03T Detailed Switch Info |
| Thousands block for 956-523 | |||||||
| 956-523-0 | TX | SOUTHWESTERN BELL | 9533 | LAREDO | LARDTXLADS0 | N/A | Prefix Type: RBOC Switch Name: LAREDO Switch Type: WECO 5ESS (Digital) LATA: San Antonio TX (566) Tandem: SNANTXCA03T Detailed Switch Info |
| 956-523-1 | TX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (Verizon Wireless) | 6506 | LAREDO | NOCLLIKNOWN | 06/06/2019 | Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: San Antonio TX (566) Tandem: N/A Detailed Switch Info |
| 956-523-2 | TX | SOUTHWESTERN BELL | 9533 | LAREDO | LARDTXLADS0 | N/A | Prefix Type: RBOC Switch Name: LAREDO Switch Type: WECO 5ESS (Digital) LATA: San Antonio TX (566) Tandem: SNANTXCA03T Detailed Switch Info |
| 956-523-3 | TX | SOUTHWESTERN BELL | 9533 | LAREDO | LARDTXLADS0 | N/A | Prefix Type: RBOC Switch Name: LAREDO Switch Type: WECO 5ESS (Digital) LATA: San Antonio TX (566) Tandem: SNANTXCA03T Detailed Switch Info |
| 956-523-4 | TX | SOUTHWESTERN BELL | 9533 | LAREDO | LARDTXLADS0 | N/A | Prefix Type: RBOC Switch Name: LAREDO Switch Type: WECO 5ESS (Digital) LATA: San Antonio TX (566) Tandem: SNANTXCA03T Detailed Switch Info |
| 956-523-5 | TX | SOUTHWESTERN BELL | 9533 | LAREDO | LARDTXLADS0 | N/A | Prefix Type: RBOC Switch Name: LAREDO Switch Type: WECO 5ESS (Digital) LATA: San Antonio TX (566) Tandem: SNANTXCA03T Detailed Switch Info |
| 956-523-6 | TX | SOUTHWESTERN BELL | 9533 | LAREDO | LARDTXLADS0 | N/A | Prefix Type: RBOC Switch Name: LAREDO Switch Type: WECO 5ESS (Digital) LATA: San Antonio TX (566) Tandem: SNANTXCA03T Detailed Switch Info |
| 956-523-7 | TX | SOUTHWESTERN BELL | 9533 | LAREDO | LARDTXLADS0 | N/A | Prefix Type: RBOC Switch Name: LAREDO Switch Type: WECO 5ESS (Digital) LATA: San Antonio TX (566) Tandem: SNANTXCA03T Detailed Switch Info |
| 956-523-8 | TX | SOUTHWESTERN BELL | 9533 | LAREDO | LARDTXLADS0 | N/A | Prefix Type: RBOC Switch Name: LAREDO Switch Type: WECO 5ESS (Digital) LATA: San Antonio TX (566) Tandem: SNANTXCA03T Detailed Switch Info |
| 956-523-9 | TX | STPCS JOINT VENTURE, LLC | 4290 | LAREDO | NOCLLIKNOWN | 09/15/2006 | Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: San Antonio TX (566) Tandem: N/A Detailed Switch Info |