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npa-nxxState/ProvinceCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
331-208ILT-MOBILE USA, INC. (T-Mobile US, Inc)0017078262RMD00190516529AURORACHCGILMF2MD11/08/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCGILMF2MD))
331-208 is split into 1,000-number blocks - detail below
331-208-3XXXILTERRA NOVA TELECOM INC.0021193057RMD0001495145JAURORANOCLLIKNOWN05/11/2026Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
331-208-4XXXILTERRA NOVA TELECOM INC.0021193057RMD0001495145JAURORANOCLLIKNOWN10/17/2023Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
331-208-5XXXILLEVEL 3 COMMUNICATIONS, LLC - IL (Lumen Technologies, Inc)0015338122RMD00061126115AURORANOCLLIKNOWN12/14/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
331-208-6XXXILMCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL (Verizon Communications)0004999405RMD00029577196AURORAEGVGILIFDS111/15/2012Prefix Type: CLEC
Switch Name: ELK GROVE
Switch Type: Northern Telecom DMS100/200 Digital Host
LATA: Chicago IL METRO (358)
Tandem: N/A
🔧 Explore Switch(CLLI: EGVGILIFDS1))
331-208-7XXXILMCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL (Verizon Communications)0004999405RMD00029577196AURORAEGVGILIFDS111/15/2012Prefix Type: CLEC
Switch Name: ELK GROVE
Switch Type: Northern Telecom DMS100/200 Digital Host
LATA: Chicago IL METRO (358)
Tandem: N/A
🔧 Explore Switch(CLLI: EGVGILIFDS1))
331-208-8XXXILCELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL (Verizon Wireless)0003290673RMD00033826333AURORARVDLILBDAMD02/05/2013Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
🔧 Explore Switch(CLLI: RVDLILBDAMD))
331-208-9XXXILLEVEL 3 COMMUNICATIONS, LLC - IL (Lumen Technologies, Inc)0015338122RMD00061126115AURORANOCLLIKNOWN03/26/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Chicago IL METRO (358)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
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