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| npa-nxx | State/Province | Company | FRN | RMD | OCN | Rate Center | CLLI | Assign Date | Misc |
| 959-678 | CT | AT&T - LOCAL (AT&T) | N/A | 7421 | KILLINGWTH | NWHNCT02XOX | 07/07/2022 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: N/A Tandem: N/A 🔧 Explore Switch(CLLI: NWHNCT02XOX)) | |
| 959-678 is split into 1,000-number blocks - detail below | |||||||||
| 959-678-0XXX | CT | IP HORIZON LLC | 0027469766 | RMD0001571 | 515J | KILLINGWTH | NOCLLIKNOWN | 06/21/2024 | Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: N/A Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) |
| 959-678-9XXX | CT | AT&T - LOCAL (AT&T) | N/A | 7421 | KILLINGWTH | NWHNCT02XOX | 07/07/2022 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: N/A Tandem: N/A 🔧 Explore Switch(CLLI: NWHNCT02XOX )) |