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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
443-640MDUS LEC OF MARYLAND, INC.2589BEL AIRCLMAMDJTDS005/18/2001Prefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-640
443-640-0MDUS LEC OF MARYLAND, INC.2589BEL AIRCLMAMDJTDS0N/APrefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-640-1MDUS LEC OF MARYLAND, INC.2589BEL AIRCLMAMDJTDS0N/APrefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-640-2MDUS LEC OF MARYLAND, INC.2589BEL AIRCLMAMDJTDS0N/APrefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-640-3MDUS LEC OF MARYLAND, INC.2589BEL AIRCLMAMDJTDS0N/APrefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-640-4MDCOMCAST IP PHONE, LLC318JBEL AIRNOCLLIKNOWN04/18/2008Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-640-5MDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)6395BEL AIRBLTOMDKHBMD01/05/2009Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-640-6MDARMSTRONG TELECOMMUNICATIONS, INC. - MD420CBEL AIRNOCLLIKNOWN08/11/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-640-7MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036BEL AIRCLMAMDORGT001/24/2012Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-640-8MDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)6855BEL AIRBLTMMDCH40Z03/24/2008Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-640-9MDTELNYX LLC073HBEL AIRNOCLLIKNOWN02/05/2021Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
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