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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
443-353MDVERIZON MARYLAND, INC. (Verizon Communications)9212COCKEYSVLCYVLMDDADS003/19/2004Prefix Type: RBOC
Switch Name: COCKEYSVILLE
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-353
443-353-0MDBANDWIDTH.COM CLEC, LLC - MD071FCOCKEYSVLNOCLLIKNOWN10/01/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-353-1MDVERIZON MARYLAND, INC. (Verizon Communications)9212COCKEYSVLCYVLMDDADS003/19/2004Prefix Type: RBOC
Switch Name: COCKEYSVILLE
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-353-2MDVERIZON MARYLAND, INC. (Verizon Communications)9212COCKEYSVLCYVLMDDADS003/19/2004Prefix Type: RBOC
Switch Name: COCKEYSVILLE
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-353-3MDVERIZON MARYLAND, INC. (Verizon Communications)9212COCKEYSVLCYVLMDDADS003/19/2004Prefix Type: RBOC
Switch Name: COCKEYSVILLE
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-353-4MDLEVEL 3 TELECOM OF MARYLAND, L (CenturyLink, Inc)7591COCKEYSVLNOCLLIKNOWN03/27/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-353-5MDCOMCAST IP PHONE, LLC318JCOCKEYSVLNOCLLIKNOWN03/31/2015Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-353-6MDBROADVIEW NETWORKS, INC. - MD (Windstream Holdings)9170COCKEYSVLNOCLLIKNOWN05/19/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-353-7MDBANDWIDTH.COM CLEC, LLC - MD071FCOCKEYSVLNOCLLIKNOWN05/05/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-353-8MDLOCAL ACCESS LLC - MD082HCOCKEYSVLNOCLLIKNOWN12/07/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-353-9MDBANDWIDTH.COM CLEC, LLC - MD071FCOCKEYSVLNOCLLIKNOWN11/12/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
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