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
443-372MDPAETEC ITEL, LLC0015247810RMD0038378829JEDGEWOODCLMAMDJTDS003/19/2001Prefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDS0))
443-372 is split into 1,000-number blocks - detail below
443-372-0XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JEDGEWOODCLMAMDJTDS0N/APrefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDS0))
443-372-1XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JEDGEWOODCLMAMDJTDS0N/APrefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDS0))
443-372-2XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JEDGEWOODCLMAMDJTDS0N/APrefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDS0))
443-372-3XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JEDGEWOODCLMAMDJTDS0N/APrefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDS0))
443-372-4XXXMDTERRA NOVA TELECOM INC.0021193057RMD0001495145JEDGEWOODNOCLLIKNOWN06/21/2021Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-372-5XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JEDGEWOODBLTMMDCHXFX05/21/2008Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXFX))
443-372-6XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JEDGEWOODCLMAMDJTDS011/17/2003Prefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDS0))
443-372-7XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FEDGEWOODNOCLLIKNOWN08/14/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-372-8XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FEDGEWOODNOCLLIKNOWN08/14/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-372-9XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JEDGEWOODCLMAMDJTDS0N/APrefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDS0))