AS3423 - ATTIS-ASN3423 - AT&T Enterprises, LLC, US

United States
AS Number
AS3423
AS Name
ATTIS-ASN3423
Org Name
AT&T Enterprises, LLC
Country
United States
Registry

arin

RegDate

2024-11-22

Updated

2025-10-14

AS3423 Looking Glass
IPv4Prefixes

11

IPv6Prefixes

2

IPv4 NUMs

3,328

IPv6 NUMs(/64)

4,294,967,296

3,328 IPv4 Addresses
CIDR Description IP Num
12.96.43.0/24 TCORP-FA-PRODUCT TO PRODUCT 256
12.96.44.0/24 TCORP-FA-PRODUCT TO PRODUCT 256
157.96.84.0/24 Granite Telecommunications LLC 256
157.96.85.0/24 Granite Telecommunications LLC 256
157.96.86.0/24 Granite Telecommunications LLC 256
165.224.128.0/23 U.S. Department of Education 512
165.224.130.0/23 U.S. Department of Education 512
165.224.132.0/24 U.S. Department of Education 256
165.224.134.0/24 U.S. Department of Education 256
165.224.136.0/24 U.S. Department of Education 256
165.224.140.0/24 U.S. Department of Education 256
CIDR Description IP NUMs(prefix /64)
2610:e8::/33 U.S. Department of Education 2147483648
2610:e8:8000::/33 U.S. Department of Education 2147483648
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC, US United States 93,108,480 2,430,968,987,648 IPv4 IPv4 IPv6 IPv6
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS13979 ATT-IPFR - AT&T Enterprises, LLC, US United States 82,688 0 IPv4 IPv4 IPv6 IPv6 
ASNumber:       3423
ASName:         ATTIS-ASN3423
ASHandle:       AS3423
RegDate:        1994-02-17
Updated:        2024-12-05    
Ref:            https://rdap.arin.net/registry/autnum/3423



OrgName:        AT&T Enterprises, LLC
OrgId:          AEL-360
Address:        9380 STATION ST
City:           LONE TREE
StateProv:      CO
PostalCode:     80124
Country:        US
RegDate:        2024-11-22
Updated:        2025-10-14
Ref:            https://rdap.arin.net/registry/entity/AEL-360


OrgTechHandle: ZS44-ARIN
OrgTechName:   IPAdmin-ATT Internet Services
OrgTechPhone:  +1-888-510-5545 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/ZS44-ARIN

OrgRoutingHandle: ROUTI59-ARIN
OrgRoutingName:   Routing POC
OrgRoutingPhone:  +1-999-999-9999 
OrgRoutingEmail:  [email protected]
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ROUTI59-ARIN

OrgTechHandle: ICC-ARIN
OrgTechName:   IP Team
OrgTechPhone:  +1-888-876-2382 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/ICC-ARIN

OrgAbuseHandle: ABUSE7-ARIN
OrgAbuseName:   abuse
OrgAbusePhone:  +1-919-319-8167 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE7-ARIN