Input an Area Code (required) followed by the Prefix, or Exchange (optional):
-
If you were a paid member, you could be loading this into any version of Excel or Access (or any other software that understands CSV) right now for less than you paid for your breakfast or lunch today. If you are a member please login to access this and other functionality.
npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
443-733MDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)7325WATERLO238CLMAMDNIDS100/00/0000Prefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-733
443-733-0MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC7229WATERLO238BLTMMDSN5MD01/21/2003Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-733-1MDUS LEC OF MARYLAND, INC.2589WATERLO238CLMAMDJTDS002/07/2003Prefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-733-2MDCTC COMMUNICATIONS CORP. - MD (Windstream Holdings)2697WATERLO238NOCLLIKNOWN03/05/2009Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-733-3MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)7228WATERLO238BLTOMDKHDS009/11/2008Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-733-4MDONVOY, LLC - MD (Sinch)876DWATERLO238NOCLLIKNOWN03/29/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-733-5MDBROADVIEW NETWORKS, INC. - MD (Windstream Holdings)9170WATERLO238NOCLLIKNOWN09/12/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-733-6MDONVOY, LLC - MD (Sinch)876DWATERLO238NOCLLIKNOWN03/29/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-733-7MDCORE COMMUNICATIONS, INC.- MD2593WATERLO238NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-733-8MDIP HORIZON LLC515JWATERLO238NOCLLIKNOWN05/03/2016Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-733-9MDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)7325WATERLO238CLMAMDNIDS1N/APrefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info