npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
202-479 | DC | VERIZON WASHINGTON DC, INC. (Verizon Communications) | 9211 | WSHNGTNZN1 | WASHDCSWDSA | 00/00/0000 | Prefix Type: RBOC Switch Name: SOUTHWEST 1 Switch Type: NTDMS1/2 LATA: N/A Tandem: N/A Detailed Switch Info |