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npa-nxxState/ProvinceCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
720-210COMCIMETRO ACCESS TRANSMISSION SERVICES LLC (Verizon Communications)0004999405RMD00029577229DENVERDNVRCO37DS000/00/0000Prefix Type: CLEC
Switch Name: DENVER
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Denver CO (656)
Tandem: N/A
🔧 Explore Switch(CLLI: DNVRCO37DS0))
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720-210 is split into 1,000-number blocks - detail below
720-210-0XXXCONEW CINGULAR WIRELESS PCS, LLC (AT&T)0003291192RMD00369096010DENVERDNVRCOMDCM707/10/2025Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Denver CO (656)
Tandem: N/A
🔧 Explore Switch(CLLI: DNVRCOMDCM7))
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720-210-1XXXCOMCIMETRO ACCESS TRANSMISSION SERVICES LLC (Verizon Communications)0004999405RMD00029577229DENVERDNVRCO37DS0N/APrefix Type: CLEC
Switch Name: DENVER
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Denver CO (656)
Tandem: N/A
🔧 Explore Switch(CLLI: DNVRCO37DS0))
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720-210-2XXXCOMETROPCS, INC. (T-Mobile US, Inc)N/A5562DENVERDNVRCOII4MD03/22/2022Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Denver CO (656)
Tandem: N/A
🔧 Explore Switch(CLLI: DNVRCOII4MD))
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720-210-3XXXCOT-MOBILE USA, INC. (T-Mobile US, Inc)0017078262RMD00190516529DENVERDNVRCOII3MD01/05/2005Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Denver CO (656)
Tandem: N/A
🔧 Explore Switch(CLLI: DNVRCOII3MD))
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720-210-4XXXCOT-MOBILE USA, INC. (T-Mobile US, Inc)0017078262RMD00190516529DENVERDNVRCOII3MD01/05/2005Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Denver CO (656)
Tandem: N/A
🔧 Explore Switch(CLLI: DNVRCOII3MD))
🕘 Prefix History
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720-210-5XXXCOLEVEL 3 COMMUNICATIONS, LLC - CO (Lumen Technologies, Inc)0015338122RMD00061126118DENVERNOCLLIKNOWN07/22/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Denver CO (656)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
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720-210-6XXXCOT-MOBILE USA, INC. (T-Mobile US, Inc)0017078262RMD00190516529DENVERDNVRCOII3MD12/10/2004Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Denver CO (656)
Tandem: N/A
🔧 Explore Switch(CLLI: DNVRCOII3MD))
🕘 Prefix History
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720-210-7XXXCOT-MOBILE USA, INC. (T-Mobile US, Inc)0017078262RMD00190516529DENVERDNVRCOII3MD01/05/2005Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Denver CO (656)
Tandem: N/A
🔧 Explore Switch(CLLI: DNVRCOII3MD))
🕘 Prefix History
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720-210-8XXXCOT-MOBILE USA, INC. (T-Mobile US, Inc)0017078262RMD00190516529DENVERDNVRCOII3MD01/27/2005Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Denver CO (656)
Tandem: N/A
🔧 Explore Switch(CLLI: DNVRCOII3MD))
🕘 Prefix History
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720-210-9XXXCOLEVEL 3 COMMUNICATIONS, LLC - CO (Lumen Technologies, Inc)0015338122RMD00061126118DENVERNOCLLIKNOWN07/22/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Denver CO (656)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
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