This AS is not currently used to announce prefixes in the global routing table, nor is it used as a visible transit AS.
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS17229 32 More Specifics 32 Total Advertisements ATT-CERFNET-BLOCK, US
12.64.160.0/24 12.0.0.0/8
12.64.161.0/24 12.0.0.0/8
12.64.162.0/24 12.0.0.0/8
12.64.163.0/24 12.0.0.0/8
12.64.164.0/24 12.0.0.0/8
12.64.165.0/24 12.0.0.0/8
12.64.168.0/24 12.0.0.0/8
12.64.169.0/24 12.0.0.0/8
12.64.170.0/24 12.0.0.0/8
12.64.171.0/24 12.0.0.0/8
12.64.172.0/24 12.0.0.0/8
12.64.173.0/24 12.0.0.0/8
12.67.0.0/24 12.0.0.0/8
12.67.13.0/24 12.0.0.0/8
32.101.209.0/24 32.0.0.0/9
32.228.96.0/24 32.224.0.0/13
32.228.97.0/24 32.224.0.0/13
32.228.98.0/24 32.224.0.0/13
32.228.99.0/24 32.224.0.0/13
32.228.100.0/24 32.224.0.0/13
32.228.101.0/24 32.224.0.0/13
32.228.102.0/24 32.224.0.0/13
32.228.103.0/24 32.224.0.0/13
63.240.128.0/18 63.240.0.0/15
63.240.152.0/24 63.240.0.0/15
134.24.164.0/24 134.24.0.0/16
134.24.224.0/22 134.24.0.0/16
199.105.128.0/21 199.105.0.0/16
199.108.48.0/20 199.108.0.0/16
206.16.70.0/23 206.16.0.0/14
206.18.96.0/19 206.16.0.0/14
206.18.144.0/20 206.16.0.0/14
Prefixes added and withdrawn by this origin AS in the past 7 days.
+ 12.64.160.0/24 Announced
+ 12.64.161.0/24 Announced
+ 12.64.162.0/24 Announced
+ 12.64.163.0/24 Announced
+ 12.64.164.0/24 Announced
+ 12.64.165.0/24 Announced
+ 12.64.168.0/24 Announced
+ 12.64.169.0/24 Announced
+ 12.64.170.0/24 Announced
+ 12.64.171.0/24 Announced
+ 12.64.172.0/24 Announced
+ 12.64.173.0/24 Announced
+ 32.228.96.0/24 Announced
+ 32.228.97.0/24 Announced
+ 32.228.98.0/24 Announced
+ 32.228.99.0/24 Announced
+ 32.228.100.0/24 Announced
+ 32.228.101.0/24 Announced
+ 32.228.102.0/24 Announced
+ 32.228.103.0/24 Announced
+ 63.240.152.0/24 Announced
+ 199.108.48.0/20 Announced
whois: 402590
IANA has recorded AS17229 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS17229\n
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
ASNumber: 17224 - 17233
ASName: ATT-CERFNET-BLOCK
ASHandle: AS17224
RegDate: 2000-08-09
Updated: 2025-03-19
Ref: https://rdap.arin.net/registry/autnum/17224
OrgName: AT&T Enterprises, LLC
OrgId: AEL-360
Address: 208 S. Akard St.
City: Dallas
StateProv: TX
PostalCode: 75202
Country: US
RegDate: 2024-11-22
Updated: 2025-10-29
Ref: https://rdap.arin.net/registry/entity/AEL-360
OrgAbuseHandle: ABUSE7-ARIN
OrgAbuseName: abuse
OrgAbusePhone: +1-919-319-8167
OrgAbuseEmail: abuse@att.net
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE7-ARIN
OrgRoutingHandle: ROUTI59-ARIN
OrgRoutingName: Routing POC
OrgRoutingPhone: +1-999-999-9999
OrgRoutingEmail: routing_poc@att.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/ROUTI59-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
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#