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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
443-641MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119PIKESVILLEBLTMMDSN6MD05/18/2001Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-641
443-641-0MDPEERLESS NETWORK OF MARYLAND, 568GPIKESVILLENOCLLIKNOWN04/04/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-641-1MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119PIKESVILLEBLTMMDSN6MDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-641-2MDVERIZON MARYLAND, INC. (Verizon Communications)9212PIKESVILLEOWMLMDOMDS009/13/2004Prefix Type: RBOC
Switch Name: OWINGS MILLS
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-641-3MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036PIKESVILLECLMAMDORGT007/26/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-641-4MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036PIKESVILLECLMAMDORGT007/26/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-641-5MDVERIZON MARYLAND, INC. (Verizon Communications)9212PIKESVILLEOWMLMDOMDS009/13/2004Prefix Type: RBOC
Switch Name: OWINGS MILLS
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-641-6MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036PIKESVILLECLMAMDORGT011/15/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-641-7MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036PIKESVILLECLMAMDORGT011/15/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-641-8MDPEERLESS NETWORK OF MARYLAND, 568GPIKESVILLENOCLLIKNOWN04/04/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-641-9MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119PIKESVILLEBLTMMDSN6MDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
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