🔎 Tip: Click any Company, OCN, Rate Center, or CLLI to explore related telecom data
| npa-nxx | State/Province | Company | FRN | RMD | OCN | Rate Center | CLLI | Assign Date | Misc |
| 281-529 | TX | SOUTHWESTERN BELL | N/A | 9533 | HSTNSUBURB | HSTNTXBUDS0 | 00/00/0000 | Prefix Type: RBOC Switch Name: HOUSTON BUFFALO Switch Type: WECO 5ESS (Digital) LATA: Houston TX (560) Tandem: N/A 🔧 Explore Switch(CLLI: HSTNTXBUDS0)) | |
| 281-529 is split into 1,000-number blocks - detail below | |||||||||
| 281-529-0XXX | TX | SOUTHWESTERN BELL | N/A | 9533 | HSTNSUBURB | HSTNTXBUDS0 | N/A | Prefix Type: RBOC Switch Name: HOUSTON BUFFALO Switch Type: WECO 5ESS (Digital) LATA: Houston TX (560) Tandem: N/A 🔧 Explore Switch(CLLI: HSTNTXBUDS0)) | |
| 281-529-1XXX | TX | SOUTHWESTERN BELL | N/A | 9533 | HSTNSUBURB | HSTNTXBUDS0 | N/A | Prefix Type: RBOC Switch Name: HOUSTON BUFFALO Switch Type: WECO 5ESS (Digital) LATA: Houston TX (560) Tandem: N/A 🔧 Explore Switch(CLLI: HSTNTXBUDS0)) | |
| 281-529-2XXX | TX | TELEPORT COMMUNICATIONS AMERICA, LLC - TX (AT&T) | 0004274114 | RMD0003897 | 7138 | HSTNSUBURB | NOCLLIKNOWN | 09/06/2019 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Houston TX (560) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) |
| 281-529-3XXX | TX | SOUTHWESTERN BELL | N/A | 9533 | HSTNSUBURB | HSTNTXBUDS0 | N/A | Prefix Type: RBOC Switch Name: HOUSTON BUFFALO Switch Type: WECO 5ESS (Digital) LATA: Houston TX (560) Tandem: N/A 🔧 Explore Switch(CLLI: HSTNTXBUDS0)) | |
| 281-529-4XXX | TX | SOUTHWESTERN BELL | N/A | 9533 | HSTNSUBURB | HSTNTXBUDS0 | N/A | Prefix Type: RBOC Switch Name: HOUSTON BUFFALO Switch Type: WECO 5ESS (Digital) LATA: Houston TX (560) Tandem: N/A 🔧 Explore Switch(CLLI: HSTNTXBUDS0)) | |
| 281-529-5XXX | TX | LEVEL 3 COMMUNICATIONS, LLC - TX (Lumen Technologies, Inc) | N/A | 6114 | HSTNSUBURB | NOCLLIKNOWN | 01/22/2008 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Houston TX (560) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) | |
| 281-529-6XXX | TX | COMCAST IP PHONE, LLC (Comcast) | 0008497687 | RMD0003552 | 318J | HSTNSUBURB | HSTNTXMOX7X | 09/01/2011 | Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: Houston TX (560) Tandem: N/A 🔧 Explore Switch(CLLI: HSTNTXMOX7X)) |
| 281-529-7XXX | TX | ONVOY, LLC - TX (Sinch) | 0004323028 | RMD0001966 | 903C | HSTNSUBURB | HSTNTXBUDS0 | 09/20/2020 | Prefix Type: CLEC Switch Name: HOUSTON BUFFALO Switch Type: WECO 5ESS (Digital) LATA: Houston TX (560) Tandem: N/A 🔧 Explore Switch(CLLI: HSTNTXBUDS0)) |
| 281-529-8XXX | TX | SOUTHWESTERN BELL | N/A | 9533 | HSTNSUBURB | HSTNTXBUDS0 | N/A | Prefix Type: RBOC Switch Name: HOUSTON BUFFALO Switch Type: WECO 5ESS (Digital) LATA: Houston TX (560) Tandem: N/A 🔧 Explore Switch(CLLI: HSTNTXBUDS0)) | |
| 281-529-9XXX | TX | SOUTHWESTERN BELL | N/A | 9533 | HSTNSUBURB | HSTNTXBUDS0 | N/A | Prefix Type: RBOC Switch Name: HOUSTON BUFFALO Switch Type: WECO 5ESS (Digital) LATA: Houston TX (560) Tandem: N/A 🔧 Explore Switch(CLLI: HSTNTXBUDS0)) |