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| npa-nxx | State | Company | FRN | RMD | OCN | Rate Center | CLLI | Assign Date | Misc |
| 503-599 | OR | SPOK, INC. (Spok, Inc) | 0015608417 | RMD0007858 | 6630 | PORTLAND | PTLDOR69X1X | 00/00/0000 | Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Portland OR (672) Tandem: N/A Detailed Switch Info |
