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
336-643NCBELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (Bellsouth)9417SUMMERFLDSRFDNCCE64300/00/0000Prefix Type: RBOC
Switch Name: SUMMERFIELD
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Greensboro NC (424)
Tandem: N/A
Detailed Switch Info
336-644NCBELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (Bellsouth)9417SUMMERFLDSRFDNCCE64300/00/0000Prefix Type: RBOC
Switch Name: SUMMERFIELD
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Greensboro NC (424)
Tandem: N/A
Detailed Switch Info
Thousands block for 336-644
336-644-0NCBELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (Bellsouth)9417SUMMERFLDSRFDNCCE643N/APrefix Type: RBOC
Switch Name: SUMMERFIELD
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Greensboro NC (424)
Tandem: N/A
Detailed Switch Info
336-644-1NCBELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (Bellsouth)9417SUMMERFLDSRFDNCCE643N/APrefix Type: RBOC
Switch Name: SUMMERFIELD
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Greensboro NC (424)
Tandem: N/A
Detailed Switch Info
336-644-2NCBELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (Bellsouth)9417SUMMERFLDSRFDNCCE643N/APrefix Type: RBOC
Switch Name: SUMMERFIELD
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Greensboro NC (424)
Tandem: N/A
Detailed Switch Info
336-644-6NCBELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (Bellsouth)9417SUMMERFLDSRFDNCCE643N/APrefix Type: RBOC
Switch Name: SUMMERFIELD
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Greensboro NC (424)
Tandem: N/A
Detailed Switch Info
336-644-7NCBELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (Bellsouth)9417SUMMERFLDSRFDNCCE643N/APrefix Type: RBOC
Switch Name: SUMMERFIELD
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Greensboro NC (424)
Tandem: N/A
Detailed Switch Info
336-644-8NCBELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (Bellsouth)9417SUMMERFLDSRFDNCCE643N/APrefix Type: RBOC
Switch Name: SUMMERFIELD
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Greensboro NC (424)
Tandem: N/A
Detailed Switch Info
336-644-9NCBELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (Bellsouth)9417SUMMERFLDSRFDNCCE643N/APrefix Type: RBOC
Switch Name: SUMMERFIELD
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Greensboro NC (424)
Tandem: N/A
Detailed Switch Info