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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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
Thousands block for 520-341
520-341-3AZMCC TELEPHONY LLC593KNOGALESTCSNAZMAXRX04/28/2017Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Tucson AZ (668)
Tandem: N/A
Detailed Switch Info
520-415AZMCC TELEPHONY LLC593KNOGALESTCSNAZMAXRX03/05/2012Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Tucson AZ (668)
Tandem: N/A
Detailed Switch Info
Thousands block for 520-415
520-415-1AZMCC TELEPHONY LLC593KNOGALESTCSNAZMAXRX03/07/2012Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Tucson AZ (668)
Tandem: N/A
Detailed Switch Info
Thousands block for 520-619
520-619-6AZMCC TELEPHONY LLC593KNOGALESTCSNAZMAXRX09/14/2020Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Tucson AZ (668)
Tandem: N/A
Detailed Switch Info
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