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
205-669ALBELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (Bellsouth)N/A9419COLUMBIANACLMBALMADS000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIANA
Switch Type: N/A
LATA: Birmingham AL (476)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMBALMADS0))
205-670ALBELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (Bellsouth)N/A9419COLUMBIANACLMBALMADS000/00/0000Prefix Type: RBOC
Switch Name: COLUMBIANA
Switch Type: N/A
LATA: Birmingham AL (476)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMBALMADS0))
205-670 is split into 1,000-number blocks - detail below
205-670-0XXXALBELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (Bellsouth)N/A9419COLUMBIANACLMBALMADS0N/APrefix Type: RBOC
Switch Name: COLUMBIANA
Switch Type: N/A
LATA: Birmingham AL (476)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMBALMADS0))
205-670-5XXXALBELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (Bellsouth)N/A9419COLUMBIANACLMBALMADS0N/APrefix Type: RBOC
Switch Name: COLUMBIANA
Switch Type: N/A
LATA: Birmingham AL (476)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMBALMADS0))
205-670-6XXXALBELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (Bellsouth)N/A9419COLUMBIANACLMBALMADS004/20/2004Prefix Type: RBOC
Switch Name: COLUMBIANA
Switch Type: N/A
LATA: Birmingham AL (476)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMBALMADS0))
205-670-9XXXALBELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (Bellsouth)N/A9419COLUMBIANACLMBALMADS0N/APrefix Type: RBOC
Switch Name: COLUMBIANA
Switch Type: N/A
LATA: Birmingham AL (476)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMBALMADS0))
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