🔎 Tip: Click any Company, OCN, Rate Center, or CLLI to explore related telecom data
| npa-nxx | State/Province | Company | FRN | RMD | OCN | Rate Center | CLLI | Assign Date | Misc |
| 406-644 | MT | BLACKFOOT TEL. COOP., INC. | 0001646165 | RMD0004776 | 2235 | CHARLO | CHRLMTXCRS1 | 00/00/0000 | Prefix Type: ICO Switch Name: CHARLO Switch Type: Northern Telecom DMS10 RSLE LATA: Great Falls MT (648) Tandem: N/A 🔧 Explore Switch(CLLI: CHRLMTXCRS1)) |
| 406-644 is split into 1,000-number blocks - detail below | |||||||||
| 406-644-1XXX | MT | WESTERN MONTANA COMMUNITYTEL INC. - MT | 0001643006 | RMD0002532 | 986F | CHARLO | NOCLLIKNOWN | 07/29/2013 | Prefix Type: UNKNOWN Switch Name: N/A Switch Type: N/A LATA: Great Falls MT (648) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) |
| 406-644-2XXX | MT | BLACKFOOT TEL. COOP., INC. | 0001646165 | RMD0004776 | 2235 | CHARLO | CHRLMTXCRS1 | N/A | Prefix Type: ICO Switch Name: CHARLO Switch Type: Northern Telecom DMS10 RSLE LATA: Great Falls MT (648) Tandem: N/A 🔧 Explore Switch(CLLI: CHRLMTXCRS1)) |
| 406-644-3XXX | MT | BLACKFOOT TEL. COOP., INC. | 0001646165 | RMD0004776 | 2235 | CHARLO | CHRLMTXCRS1 | N/A | Prefix Type: ICO Switch Name: CHARLO Switch Type: Northern Telecom DMS10 RSLE LATA: Great Falls MT (648) Tandem: N/A 🔧 Explore Switch(CLLI: CHRLMTXCRS1)) |
| 406-644-4XXX | MT | TERRA NOVA TELECOM INC. | 0021193057 | RMD0001495 | 145J | CHARLO | NOCLLIKNOWN | 09/15/2025 | Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: Great Falls MT (648) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) |
| 406-644-9XXX | MT | BLACKFOOT TEL. COOP., INC. | 0001646165 | RMD0004776 | 2235 | CHARLO | CHRLMTXCRS1 | N/A | Prefix Type: ICO Switch Name: CHARLO Switch Type: Northern Telecom DMS10 RSLE LATA: Great Falls MT (648) Tandem: N/A 🔧 Explore Switch(CLLI: CHRLMTXCRS1)) |