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| npa-nxx | State/Province | Company | FRN | RMD | OCN | Rate Center | CLLI | Assign Date | Misc |
| 406-615 | MT | WESTERN MONTANA COMMUNITYTEL INC. - MT | 0001643006 | RMD0002532 | 986F | THOMPSNFLS | CHRLMT010MD | 04/28/2014 | Prefix Type: UNKNOWN Switch Name: N/A Switch Type: N/A LATA: Great Falls MT (648) Tandem: N/A 🔧 Explore Switch(CLLI: CHRLMT010MD)) |
| 406-615 is split into 1,000-number blocks - detail below | |||||||||
| 406-615-2XXX | MT | WESTERN MONTANA COMMUNITYTEL INC. - MT | 0001643006 | RMD0002532 | 986F | THOMPSNFLS | CHRLMT010MD | 06/24/2013 | Prefix Type: UNKNOWN Switch Name: N/A Switch Type: N/A LATA: Great Falls MT (648) Tandem: N/A 🔧 Explore Switch(CLLI: CHRLMT010MD)) |