IP Address12.111.221.160WHOIS Serverwhois.arin.net
Inet Nums
Start IP12.0.0.0End IP12.255.255.255CIDR12.0.0.0/8Net NameATTNet HandleNET-12-0-0-0-1StatusDirect AllocationOrganizationAT&T Enterprises, LLC (AEL-360)Date Created1983-08-23Date Updated2025-12-02Sourcehttps://rdap.arin.net/registry/ip/12.0.0.0ParentsNET12 (NET-12-0-0-0-0)
Start IP12.111.221.128End IP12.111.221.255CIDR12.111.221.128/25Net NameYELLOW-B541-221-128Net HandleNET-12-111-221-128-1StatusReassignedOrganizationYELLOW BOOK USA (YBU-12)Date Created2019-11-06Date Updated2019-11-06Sourcehttps://rdap.arin.net/registry/ip/12.111.221.128ParentsATT (NET-12-0-0-0-1)
Organization
HandleYBU-12NameYELLOW BOOK USAAddress2560 RENAISSANCE BLVD, KING OF PRUSSIA, PA, 19406, USCountryUSDate Created2007-08-29Date Updated2011-09-24Sourcehttps://rdap.arin.net/registry/entity/YBU-12
Technical Contacts
HandleICC-ARINNameIP TeamEmailrm-ipspecialist@att.comPhone+1-888-876-2382Sourcehttps://rdap.arin.net/registry/entity/ICC-ARIN
HandleZS44-ARINNameIPAdmin-ATT Internet ServicesEmailipadmin@semail.att.comPhone+1-888-510-5545Sourcehttps://rdap.arin.net/registry/entity/ZS44-ARIN
HandleROUTI59-ARINNameRouting POCEmailDL-routing_poc@att.comPhone+1-999-999-9999Sourcehttps://rdap.arin.net/registry/entity/ROUTI59-ARIN
HandleTMA161-ARINNameManus, ToddEmailtodd.manus@yellowbook.comPhone+1-610-731-2586Sourcehttps://rdap.arin.net/registry/entity/TMA161-ARIN
Abuse Contacts
HandleABUSE7-ARINNameabuseEmailabuse@att.netPhone+1-919-319-8167Sourcehttps://rdap.arin.net/registry/entity/ABUSE7-ARIN
HandleTMA161-ARINNameManus, ToddEmailtodd.manus@yellowbook.comPhone+1-610-731-2586Sourcehttps://rdap.arin.net/registry/entity/TMA161-ARIN
Routes
Sourcehttps://rdap.arin.net/registry/ip/12.0.0.0
Sourcehttps://rdap.arin.net/registry/ip/12.111.221.128
