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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
443-503MDXO MARYLAND, LLC (Verizon Communications)4773DUNDALKBLTMMDSN5MD00/00/0000Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-503
443-503-0MDXO MARYLAND, LLC (Verizon Communications)4773DUNDALKBLTMMDSN5MDN/APrefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-503-1MDXO MARYLAND, LLC (Verizon Communications)4773DUNDALKBLTMMDSN5MDN/APrefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-503-2MDXO MARYLAND, LLC (Verizon Communications)4773DUNDALKBLTMMDSN5MDN/APrefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-503-3MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119DUNDALKNOCLLIKNOWN02/01/2005Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-503-4MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119DUNDALKNOCLLIKNOWN01/27/2003Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-503-5MDCOMCAST IP PHONE, LLC318JDUNDALKNOCLLIKNOWN09/06/2006Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-503-6MDCOMCAST IP PHONE, LLC318JDUNDALKNOCLLIKNOWN09/06/2006Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-503-7MDBROADVIEW NETWORKS, INC. - MD (Windstream Holdings)9170DUNDALKNOCLLIKNOWN04/08/2009Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-503-8MDCOMCAST IP PHONE, LLC318JDUNDALKNOCLLIKNOWN01/07/2013Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-503-9MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036DUNDALKCLMAMDORGT003/05/2020Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
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