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| npa-nxx | State/Province | Company | FRN | RMD | OCN | Rate Center | CLLI | Assign Date | Misc |
| 435-335 | UT | SOUTH CENTRAL UTAH TEL. ASSN., INC. (South Central Utah Telephone Association, Inc.) | N/A | 2286 | BOULDER | BLDRUTXCRS1 | 00/00/0000 | Prefix Type: ICO Switch Name: BOULDER Switch Type: Northern Telecom DMS10 RLCM LATA: N/A Tandem: N/A 🔧 Explore Switch(CLLI: BLDRUTXCRS1)) 🕘 Prefix History 🔎 Explore Carrier Information |