npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
281-722 | TX | USA MOBILITY WIRELESS, INC. (Spok, Inc) | 6630 | HOUSTON | SGLDTXAQ0MD | 00/00/0000 | Prefix Type: WIRELESS Switch Name: N/A Switch Type: Cellular Mobile Carrier Switching System LATA: Houston TX (560) Tandem: N/A Detailed Switch Info |