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
312-236ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS400/00/0000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
Thousands block for 312-281
312-281-3ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS406/27/2000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-346ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS400/00/0000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-364ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS400/00/0000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-372ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS400/00/0000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-456ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS400/00/0000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-462ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS400/00/0000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
Thousands block for 312-462
312-462-2ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS4N/APrefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-462-5ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS4N/APrefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-462-6ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS4N/APrefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-462-7ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS4N/APrefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-462-8ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS4N/APrefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
Thousands block for 312-476
312-476-5ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS405/14/2002Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-476-6ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS405/14/2002Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-476-7ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS405/14/2002Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-507ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS400/00/0000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
Thousands block for 312-507
312-507-0ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS4N/APrefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-507-2ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS4N/APrefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-507-3ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS4N/APrefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-507-4ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS4N/APrefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-507-5ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS4N/APrefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-507-6ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS4N/APrefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-507-7ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS4N/APrefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-507-8ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS4N/APrefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-551ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS400/00/0000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-580ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS400/00/0000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-652ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS400/00/0000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-693ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS400/00/0000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-704ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS400/00/0000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-737ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS400/00/0000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-762ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS400/00/0000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-782ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS400/00/0000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-795ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS400/00/0000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-853ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS400/00/0000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
Thousands block for 312-884
312-884-6ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS409/27/2000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-931ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS400/00/0000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
Thousands block for 312-931
312-931-1ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS4N/APrefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-931-2ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS4N/APrefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-931-3ILONVOY SPECTRUM, LLC (Inteliquent)624HCHICGOZN01CHCGILFRDS412/08/2021Prefix Type: WIRELESS
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-931-6ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS4N/APrefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-931-8ILVONAGE AMERICA LLC197DCHICGOZN01CHCGILFRDS403/13/2024Prefix Type: IPES
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-931-9ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS4N/APrefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
312-936ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILFRDS400/00/0000Prefix Type: RBOC
Switch Name: CHCG FRANKLIN DS4
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
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