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npa-nxxState/ProvinceCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
443-284MDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238BLTMMD91GT000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
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443-284 is split into 1,000-number blocks - detail below
443-284-0XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWATERLO238NOCLLIKNOWN12/18/2025Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
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443-284-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238BLTMMD91GT004/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-284-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238BLTMMD91GT005/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-284-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238BLTMMD91GT005/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-284-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238BLTMMD91GT004/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-284-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238BLTMMD91GT010/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
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