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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
443-455MDVERIZON MARYLAND, INC. (Verizon Communications)9212BALTIMOREBLTMMDWLDS003/09/2006Prefix Type: RBOC
Switch Name: BALTIMORE
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-455
443-455-0MDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)6855BALTIMOREBLTMMDCH40Z05/19/2008Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-455-1MDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)6119BALTIMORENOCLLIKNOWN09/30/2009Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-455-2MDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)6855BALTIMOREBLTMMDCH40Z06/07/2006Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-455-3MDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)6855BALTIMOREBLTMMDCH40Z06/07/2006Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-455-4MDTERRA NOVA TELECOM INC.145JBALTIMOREBLTQMD018MD10/18/2023Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-455-5MDVERIZON MARYLAND, INC. (Verizon Communications)9212BALTIMOREBLTMMDWLDS003/29/2006Prefix Type: RBOC
Switch Name: BALTIMORE
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-455-6MDVERIZON MARYLAND, INC. (Verizon Communications)9212BALTIMOREBLTMMDWLDS004/25/2006Prefix Type: RBOC
Switch Name: BALTIMORE
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-455-7MDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)6855BALTIMOREBLTMMDCH40Z06/07/2006Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-455-8MDVERIZON MARYLAND, INC. (Verizon Communications)9212BALTIMOREBLTMMDWLDS003/29/2006Prefix Type: RBOC
Switch Name: BALTIMORE
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-455-9MDONVOY, LLC - MD (Sinch)876DBALTIMORENOCLLIKNOWN01/29/2024Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
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