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.

🔎 Tip: Click any Company, OCN, Rate Center, or CLLI to explore related telecom data

npa-nxxState/ProvinceCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
301-844MDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855WSHNGTNZN3BTVLMD12CMA10/04/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BTVLMD12CMA))
301-844 is split into 1,000-number blocks - detail below
301-844-0XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855WSHNGTNZN3BTVLMD12CMA10/05/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BTVLMD12CMA))
301-844-1XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WSHNGTNZN3BTVLMD18GT009/02/2014Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BTVLMD18GT0))
301-844-4XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855WSHNGTNZN3BTVLMD12CMA11/23/2012Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BTVLMD12CMA))
301-844-5XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JWSHNGTNZN3ARTNVAARXDY06/27/2014Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: ARTNVAARXDY))
301-844-6XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119WSHNGTNZN3NOCLLIKNOWN05/28/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
301-844-7XXXMDCENTURYLINK COMMUNICATIONS, LLC (Lumen Technologies, Inc)0031422439RMD0006976508JWSHNGTNZN3WASIDCRG7MD08/05/2013Prefix Type: IPES
Switch Name: WSHNGTNZN1
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: WASIDCRG7MD))
301-844-8XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WSHNGTNZN3BTVLMD18GT009/02/2014Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: BTVLMD18GT0))
301-844-9XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWSHNGTNZN3NOCLLIKNOWN09/10/2024Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))