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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
410-421MDVERIZON MARYLAND, INC. (Verizon Communications)9212SEVERNA PKSVPKMDSPDS000/00/0000Prefix Type: RBOC
Switch Name: SEVERNA PARK
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-421
410-421-0MDONVOY, LLC - MD (Sinch)876DSEVERNA PKNOCLLIKNOWN02/02/2024Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-421-1MDONVOY, LLC - MD (Sinch)876DSEVERNA PKNOCLLIKNOWN02/02/2024Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-421-2MDBARR TELL USA, INC.964HSEVERNA PKNOCLLIKNOWN11/18/2016Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-421-3MDCORE COMMUNICATIONS, INC.- MD2593SEVERNA PKNOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-421-4MDCORE COMMUNICATIONS, INC.- MD2593SEVERNA PKNOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-421-5MDVERIZON MARYLAND, INC. (Verizon Communications)9212SEVERNA PKSVPKMDSPDS0N/APrefix Type: RBOC
Switch Name: SEVERNA PARK
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-421-6MDCORE COMMUNICATIONS, INC.- MD2593SEVERNA PKNOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-421-7MDONVOY, LLC - MD (Sinch)876DSEVERNA PKNOCLLIKNOWN07/20/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-421-8MDVERIZON MARYLAND, INC. (Verizon Communications)9212SEVERNA PKSVPKMDSPDS0N/APrefix Type: RBOC
Switch Name: SEVERNA PARK
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-421-9MDVERIZON MARYLAND, INC. (Verizon Communications)9212SEVERNA PKSVPKMDSPDS0N/APrefix Type: RBOC
Switch Name: SEVERNA PARK
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info