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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
443-274MDVERIZON MARYLAND, INC. (Verizon Communications)9212SEVERNODTNMDPORS200/00/0000Prefix Type: RBOC
Switch Name: ODENTON
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-274
443-274-0MDLEVEL 3 COMMUNICATIONS, LLC - MD (CenturyLink, Inc)6119SEVERNNOCLLIKNOWN02/14/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-274-1MDPAETEC COMMUNICATIONS, INC. - MD (Windstream Communications)4716SEVERNBLTMMDCHW2909/29/2005Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-274-2MDCOMCAST IP PHONE, LLC318JSEVERNNOCLLIKNOWN09/10/2007Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-274-3MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)7228SEVERNBLTOMDKHDS009/11/2008Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-274-4MDONVOY, LLC - MD (Inteliquent)876DSEVERNNOCLLIKNOWN02/06/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-274-5MDBANDWIDTH.COM CLEC, LLC - MD071FSEVERNNOCLLIKNOWN03/25/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-274-6MDLIGHTWAVE COMMUNICATIONS, LLC - MD5966SEVERNNOCLLIKNOWN06/08/2005Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-274-7MDBANDWIDTH.COM CLEC, LLC - MD071FSEVERNNOCLLIKNOWN03/25/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-274-8MDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)6395SEVERNNOCLLIKNOWN04/06/2016Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-274-9MDVERIZON MARYLAND, INC. (Verizon Communications)9212SEVERNODTNMDPORS2N/APrefix Type: RBOC
Switch Name: ODENTON
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
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