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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
443-558MDXO MARYLAND, LLC (Verizon Communications)4773ABERDEENBLTMMDSNDS501/15/2001Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-558
443-558-0MDXO MARYLAND, LLC (Verizon Communications)4773ABERDEENBLTMMDSNDS5N/APrefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-558-1MDPEERLESS NETWORK OF MARYLAND, 568GABERDEENNOCLLIKNOWN04/04/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-558-2MDXO MARYLAND, LLC (Verizon Communications)4773ABERDEENBLTMMDSNDS507/26/2013Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-558-3MDXO MARYLAND, LLC (Verizon Communications)4773ABERDEENBLTMMDSNDS5N/APrefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-558-4MDCTC COMMUNICATIONS CORP. - MD (Windstream Holdings)2697ABERDEENNOCLLIKNOWN02/17/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-558-5MDVERIZON MARYLAND, INC. (Verizon Communications)9212ABERDEENABRDMDABDS004/12/2010Prefix Type: RBOC
Switch Name: ABERDEEN
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-558-6MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ABERDEENBLTMMDCH40Z11/04/2010Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-558-7MDXO MARYLAND, LLC (Verizon Communications)4773ABERDEENBLTMMDSNDS5N/APrefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-558-8MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ABERDEENBLTMMDCH40Z11/04/2010Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-558-9MDPEERLESS NETWORK OF MARYLAND, 568GABERDEENNOCLLIKNOWN04/04/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
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