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
218-752MNCITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN (Frontier Communications)1123JACOBSONJCBSMNXJRS000/00/0000Prefix Type: ICO
Switch Name: JACOBSON
Switch Type: Northern Telecom DMS10 RLCM
LATA: Duluth MN (624)
Tandem: N/A
Detailed Switch Info
Thousands block for 218-752
218-752-1MNCITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN (Frontier Communications)1123JACOBSONJCBSMNXJRS0N/APrefix Type: ICO
Switch Name: JACOBSON
Switch Type: Northern Telecom DMS10 RLCM
LATA: Duluth MN (624)
Tandem: N/A
Detailed Switch Info
218-752-6MNCITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN (Frontier Communications)1123JACOBSONJCBSMNXJRS0N/APrefix Type: ICO
Switch Name: JACOBSON
Switch Type: Northern Telecom DMS10 RLCM
LATA: Duluth MN (624)
Tandem: N/A
Detailed Switch Info
218-752-8MNCITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN (Frontier Communications)1123JACOBSONJCBSMNXJRS0N/APrefix Type: ICO
Switch Name: JACOBSON
Switch Type: Northern Telecom DMS10 RLCM
LATA: Duluth MN (624)
Tandem: N/A
Detailed Switch Info
218-752-9MNCITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN (Frontier Communications)1123JACOBSONJCBSMNXJRS0N/APrefix Type: ICO
Switch Name: JACOBSON
Switch Type: Northern Telecom DMS10 RLCM
LATA: Duluth MN (624)
Tandem: N/A
Detailed Switch Info
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