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
203-390CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143NEW HAVENSMFRCTCTDS011/10/2015Prefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
Thousands block for 203-390
203-390-2CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143NEW HAVENSMFRCTCTDS011/11/2015Prefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
203-390-3CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143NEW HAVENSMFRCTCTDS011/11/2015Prefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
203-390-4CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143NEW HAVENSMFRCTCTDS011/11/2015Prefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
203-390-6CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143NEW HAVENSMFRCTCTDS012/01/2016Prefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
203-658CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143STAMFORDSMFRCTCTDS000/00/0000Prefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
Thousands block for 203-658
203-658-0CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143STAMFORDSMFRCTCTDS0N/APrefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
203-658-1CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143STAMFORDSMFRCTCTDS0N/APrefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
203-658-9CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143STAMFORDSMFRCTCTDS0N/APrefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
475-230CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143NEW HAVENSMFRCTCTDS003/21/2016Prefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
Thousands block for 475-230
475-230-0CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143NEW HAVENSMFRCTCTDS003/22/2016Prefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
475-230-1CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143NEW HAVENSMFRCTCTDS003/22/2016Prefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
475-230-2CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143NEW HAVENSMFRCTCTDS003/22/2016Prefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
475-230-3CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143NEW HAVENSMFRCTCTDS003/22/2016Prefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
475-230-4CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143NEW HAVENSMFRCTCTDS003/22/2016Prefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
475-230-5CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143NEW HAVENSMFRCTCTDS003/22/2016Prefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
475-230-6CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143NEW HAVENSMFRCTCTDS003/22/2016Prefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
475-230-7CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143NEW HAVENSMFRCTCTDS003/22/2016Prefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
475-230-8CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143NEW HAVENSMFRCTCTDS003/22/2016Prefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
475-230-9CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143NEW HAVENSMFRCTCTDS003/22/2016Prefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
475-619CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143STAMFORDSMFRCTCTDS012/23/2014Prefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
Thousands block for 475-619
475-619-6CTTELEPORT COMMUNICATIONS AMERIC (AT&T)7143STAMFORDSMFRCTCTDS012/29/2014Prefix Type: CLEC
Switch Name: STAMFORD
Switch Type: N/A
LATA: Connecticut (920)
Tandem: N/A
Detailed Switch Info
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