npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
541-457 | OR | HELIX TEL. CO. | 2376 | HELIX | HELXORXADS0 | 00/00/0000 | Prefix Type: ICO Switch Name: HELIX Switch Type: Digital Switching System LATA: Portland OR (672) Tandem: N/A Detailed Switch Info |