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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
443-666MDLEVEL 3 COMMUNICATIONS, LLC - MD (CenturyLink, Inc)6119CHESTERTNSLBRMDSBXFX05/23/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-666
443-666-0MDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)6395CHESTERTNNOCLLIKNOWN01/15/2018Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
Detailed Switch Info
443-666-1MDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)6855CHESTERTNNOCLLIKNOWN03/29/2021Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
Detailed Switch Info
443-666-2MDUS LEC OF MARYLAND, INC.2589CHESTERTNPHLAPAFGDSZ10/13/2014Prefix Type: CLEC
Switch Name: PHILADELPHIA
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
Detailed Switch Info
443-666-3MDLEVEL 3 COMMUNICATIONS, LLC - MD (CenturyLink, Inc)6119CHESTERTNSLBRMDSBXFX05/31/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
Detailed Switch Info
443-666-4MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036CHESTERTNNOCLLIKNOWN02/12/2016Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
Detailed Switch Info
443-666-5MDCORE COMMUNICATIONS, INC.- MD2593CHESTERTNNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
Detailed Switch Info
443-666-6MDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)7325CHESTERTNNOCLLIKNOWN09/24/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
Detailed Switch Info
443-666-7MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036CHESTERTNNOCLLIKNOWN07/30/2018Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
Detailed Switch Info
443-666-8MDTELNYX LLC073HCHESTERTNNOCLLIKNOWN08/31/2017Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
Detailed Switch Info
443-666-9MDMETROPCS, INC. (T-Mobile US, Inc)5562CHESTERTNNOCLLIKNOWN04/16/2021Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
Detailed Switch Info
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