Input a CLLI:

Tip: A Partial CLLI can be entered, but must contain a minimum of the first 6 characters. I.E. 'DLLSTX'

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

npa-nxxStateCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
305-517FLBELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (AT&T)N/AN/A9417KEYSISLMFLMARS000/00/0000Prefix Type: RBOC
Switch Name: ISLAMORADA
Switch Type: WECO 5ESS Remote (5A RSM)
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: ISLMFLMARS0))
🕘 Prefix History
🔎 Explore Carrier Information
305-517 is split into 1,000-number blocks - detail below
305-517-0XXXFLBELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (AT&T)N/AN/A9417KEYSISLMFLMARS0N/APrefix Type: RBOC
Switch Name: ISLAMORADA
Switch Type: WECO 5ESS Remote (5A RSM)
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: ISLMFLMARS0))
🕘 Prefix History
🔎 Explore Carrier Information
305-517-2XXXFLBELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (AT&T)N/AN/A9417KEYSISLMFLMARS0N/APrefix Type: RBOC
Switch Name: ISLAMORADA
Switch Type: WECO 5ESS Remote (5A RSM)
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: ISLMFLMARS0))
🕘 Prefix History
🔎 Explore Carrier Information
305-664FLBELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (AT&T)N/AN/A9417KEYSISLMFLMARS000/00/0000Prefix Type: RBOC
Switch Name: ISLAMORADA
Switch Type: WECO 5ESS Remote (5A RSM)
LATA: N/A
Tandem: N/A
🔧 Explore Switch(CLLI: ISLMFLMARS0))
🕘 Prefix History
🔎 Explore Carrier Information
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