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| npa-nxx | State/Province | Company | FRN | RMD | OCN | Rate Center | CLLI | Assign Date | Misc |
| 351-246 | MA | SHELCOMM (Viper Networks Inc) | 0006401061 | RMD0015944 | 0051 | SALEM | NOCLLIKNOWN | 05/04/2026 | Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: eastern MA (128) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN)) 🕘 Prefix History 🔎 Explore Carrier Information 📡 Find related FCC/ISED radio licenses |