npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
817-436 | TX | SOUTHWESTERN BELL | 9533 | ARLINGTON | DLLSTXMCRS0 | 00/00/0000 | Prefix Type: RBOC Switch Name: DALLAS MIDCITIES Switch Type: Northern Telecom Remote Switching Center LATA: Dallas TX (552) Tandem: N/A Detailed Switch Info |