AS Number
AS4186
AS Name
ATTIS-ASN4186
Org Name
AT&T Enterprises, LLC
Registry

arin

RegDate

2024-11-22

Updated

2025-08-13

AS4186 Looking Glass
IPv4Prefixes

1

IPv6Prefixes

4

IPv4 NUMs

256

IPv6 NUMs(/64)

262,144

256 IPv4 Addresses
CIDR Description IP Num
204.46.3.0/24
Environmental Protection Agency 256
CIDR Description IP NUMs(prefix /64)
2620:0:610::/48
ROA Signed and Valid IRR InValid
Federal Communications Commission 65536
2620:0:6e0::/48
Small Business Administration 65536
2620:0:900::/48
ROOT Root inet6num object 65536
2620:10f:b000::/48
ROA Signed and Valid
Executive Office Of The President 65536
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC, US United States 93,221,120 2,529,770,995,712 IPv4 IPv4 IPv6 IPv6
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS13979 ATT-IPFR - AT&T Enterprises, LLC, US United States 82,944 0 IPv6 IPv6
ASNumber:       4186
ASName:         ATTIS-ASN4186
ASHandle:       AS4186
RegDate:        1994-12-16
Updated:        2024-12-05    
Ref:            https://rdap.arin.net/registry/autnum/4186



OrgName:        AT&T Enterprises, LLC
OrgId:          AEL-360
Address:        5302 HARRY HINES BLVD
City:           Dallas
StateProv:      TX
PostalCode:     75235
Country:        US
RegDate:        2024-11-22
Updated:        2025-08-13
Ref:            https://rdap.arin.net/registry/entity/AEL-360


OrgRoutingHandle: ROUTI59-ARIN
OrgRoutingName:   Routing POC
OrgRoutingPhone:  +1-999-999-9999 
OrgRoutingEmail:  DL-routing_poc@att.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ROUTI59-ARIN

OrgAbuseHandle: ABUSE7-ARIN
OrgAbuseName:   abuse
OrgAbusePhone:  +1-919-319-8167 
OrgAbuseEmail:  abuse@att.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE7-ARIN

OrgTechHandle: ICC-ARIN
OrgTechName:   IP Team
OrgTechPhone:  +1-888-876-2382 
OrgTechEmail:  rm-ipspecialist@att.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ICC-ARIN

OrgTechHandle: ZS44-ARIN
OrgTechName:   IPAdmin-ATT Internet Services
OrgTechPhone:  +1-888-510-5545 
OrgTechEmail:  ipadmin@semail.att.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ZS44-ARIN