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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
443-489MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325CHASEBLTMMDFMDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-489
443-489-0MDXO MARYLAND, LLC (Verizon Communications)4773CHASEBLTMMDSN5MD11/07/2001Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-489-1MDPEERLESS NETWORK OF MARYLAND, 568GCHASENOCLLIKNOWN04/04/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-489-2MDONVOY, LLC - MD (Inteliquent)876DCHASENOCLLIKNOWN02/25/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-489-3MDCTC COMMUNICATIONS CORP. - MD (Windstream Holdings)2697CHASENOCLLIKNOWN01/12/2007Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-489-4MDONVOY, LLC - MD (Inteliquent)876DCHASENOCLLIKNOWN02/25/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-489-5MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228CHASEBLTOMDKHDS009/11/2008Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-489-6MDBANDWIDTH.COM CLEC, LLC - MD071FCHASENOCLLIKNOWN01/14/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-489-7MDCENTURYLINK COMMUNICATIONS, LL (CenturyLink, Inc)508JCHASEBLTMMDDN2MD05/27/2014Prefix Type: IPES
Switch Name: GLENBURNIE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-489-8MDPEERLESS NETWORK OF MARYLAND, 568GCHASENOCLLIKNOWN04/04/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-489-9MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325CHASEBLTMMDFMDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
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