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-nxxStateCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
313-221MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS106/17/2005Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-221 is split into 1,000-number blocks - detail below
313-221-2XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS106/20/2005Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-224MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS100/00/0000Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-225MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS100/00/0000Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-226MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS100/00/0000Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-227MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS100/00/0000Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-235MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS100/00/0000Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-237MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS100/00/0000Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-338MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS110/11/2011Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-338 is split into 1,000-number blocks - detail below
313-338-0XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS110/11/2011Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-338-1XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS110/11/2011Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-338-2XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS110/11/2011Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-426 is split into 1,000-number blocks - detail below
313-426-5XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS106/12/2017Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-426-6XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS106/12/2017Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-442MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS100/00/0000Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-442 is split into 1,000-number blocks - detail below
313-442-0XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS1N/APrefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-442-1XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS1N/APrefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-442-4XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS1N/APrefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-442-5XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS1N/APrefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-442-8XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS1N/APrefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-442-9XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS1N/APrefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-471MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS100/00/0000Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-471 is split into 1,000-number blocks - detail below
313-471-2XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS1N/APrefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-471-3XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS1N/APrefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-471-5XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS1N/APrefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-471-6XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS1N/APrefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-471-7XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS1N/APrefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-545MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS110/24/2013Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-545 is split into 1,000-number blocks - detail below
313-545-0XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS110/24/2013Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-545-1XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS110/24/2013Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-545-2XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS110/24/2013Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-545-3XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS110/24/2013Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-545-4XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS110/24/2013Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-545-5XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS110/24/2013Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-545-6XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS110/24/2013Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-545-7XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS110/24/2013Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-545-8XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS110/24/2013Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-545-9XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS110/24/2013Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-596MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS100/00/0000Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-628MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS100/00/0000Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-760MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS100/00/0000Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-782MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS106/22/2012Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-782 is split into 1,000-number blocks - detail below
313-782-0XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS106/26/2012Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-782-7XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS106/26/2012Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-782-8XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS106/26/2012Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-782-9XXXMIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS106/26/2012Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-961MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS100/00/0000Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-963MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS100/00/0000Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-964MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS100/00/0000Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-965MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS100/00/0000Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
313-967MIMICHIGAN BELL TEL CO (AT&T)N/A9323DETROITZN1DTRTMIBHDS100/00/0000Prefix Type: RBOC
Switch Name: DTRT HDQTRS DS1
Switch Type: DMS100
LATA: Detroit MI (340)
Tandem: DTRTMIVW20T
🔧 Explore Switch(CLLI: DTRTMIBHDS1))
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