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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
410-237MDVERIZON MARYLAND, INC. (Verizon Communications)9212BALTIMOREBLTMMDCH1DD00/00/0000Prefix Type: RBOC
Switch Name: BALTIMORE
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-237
410-237-0MDNUSO, LLC551GBALTIMOREBLTMMDCHDMD06/25/2018Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-237-1MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036BALTIMORECLMAMDORGT001/16/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-237-2MDVERIZON MARYLAND, INC. (Verizon Communications)9212BALTIMOREBLTMMDCH1DDN/APrefix Type: RBOC
Switch Name: BALTIMORE
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-237-3MDVERIZON MARYLAND, INC. (Verizon Communications)9212BALTIMOREBLTMMDCH1DDN/APrefix Type: RBOC
Switch Name: BALTIMORE
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-237-4MDCORE COMMUNICATIONS, INC.- MD2593BALTIMORENOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-237-5MDVERIZON MARYLAND, INC. (Verizon Communications)9212BALTIMOREBLTMMDCH1DDN/APrefix Type: RBOC
Switch Name: BALTIMORE
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-237-6MDONVOY, LLC - MD (Sinch)876DBALTIMORENOCLLIKNOWN05/22/2017Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-237-7MDONVOY, LLC - MD (Sinch)876DBALTIMORENOCLLIKNOWN11/01/2017Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-237-8MDONVOY, LLC - MD (Sinch)876DBALTIMORENOCLLIKNOWN11/01/2017Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-237-9MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036BALTIMORECLMAMDORGT001/16/2024Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info