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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
443-203MDVERIZON MARYLAND, INC. (Verizon Communications)9212WEST RIVERMAYOMDMYRS100/00/0000Prefix Type: RBOC
Switch Name: WEST RIVER
Switch Type: EXM
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-203
443-203-0MDVERIZON MARYLAND, INC. (Verizon Communications)9212WEST RIVERMAYOMDMYRS1N/APrefix Type: RBOC
Switch Name: WEST RIVER
Switch Type: EXM
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-203-1MDLEVEL 3 COMMUNICATIONS, LLC - MD (CenturyLink, Inc)6119WEST RIVERNOCLLIKNOWN03/08/2005Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-203-2MDXO MARYLAND, LLC (Verizon Communications)4773WEST RIVERBLTMMDSNDS505/21/2008Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-203-3MDXO MARYLAND, LLC (Verizon Communications)4773WEST RIVERBLTMMDSNDS503/21/2007Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-203-4MDLEVEL 3 COMMUNICATIONS, LLC - MD (CenturyLink, Inc)6119WEST RIVERNOCLLIKNOWN07/29/2003Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-203-5MDLEVEL 3 COMMUNICATIONS, LLC - MD (CenturyLink, Inc)6119WEST RIVERNOCLLIKNOWN03/02/2006Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-203-6MDCOMCAST IP PHONE, LLC318JWEST RIVERNOCLLIKNOWN02/11/2005Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-203-7MDCENTURYLINK COMMUNICATIONS, LLC (CenturyLink, Inc)508JWEST RIVERBLTMMDDN2MD05/23/2014Prefix Type: IPES
Switch Name: GLENBURNIE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-203-8MDBANDWIDTH.COM CLEC, LLC - MD071FWEST RIVERNOCLLIKNOWN05/28/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-203-9MDBANDWIDTH.COM CLEC, LLC - MD071FWEST RIVERNOCLLIKNOWN11/12/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
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