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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
443-731MDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)7325PT DEPOSITBLTMMDFMDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-731
443-731-0MDONVOY, LLC - MD (Inteliquent)876DPT DEPOSITNOCLLIKNOWN02/06/2024Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-731-1MDARMSTRONG TELECOMMUNICATIONS, INC. - MD420CPT DEPOSITNOCLLIKNOWN06/02/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-731-2MDLEVEL 3 COMMUNICATIONS, LLC - MD (CenturyLink, Inc)6119PT DEPOSITNOCLLIKNOWN02/08/2006Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-731-3MDLEVEL 3 COMMUNICATIONS, LLC - MD (CenturyLink, Inc)6119PT DEPOSITNOCLLIKNOWN11/07/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-731-4MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)7228PT DEPOSITBLTOMDKHDS007/10/2017Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-731-5MDONVOY, LLC - MD (Inteliquent)876DPT DEPOSITNOCLLIKNOWN05/21/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-731-6MDBANDWIDTH.COM CLEC, LLC - MD071FPT DEPOSITNOCLLIKNOWN11/12/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-731-7MDHD CARRIER LLC321JPT DEPOSITNOCLLIKNOWN04/20/2016Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-731-8MDTERRA NOVA TELECOM INC.145JPT DEPOSITNOCLLIKNOWN01/08/2024Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-731-9MDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)7325PT DEPOSITBLTMMDFMDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
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