AS24572 Yahoo Japan
AS24572 (YAHOO-JP-AS-AP) is registered to Yahoo Japan in JP, through APNIC. It originates 5 prefixes in the global routing table.
4
IPv4 prefixes
1
IPv6 prefixes
118,784
IPv4 addresses
100%
RPKI valid
Registration
Who holds AS24572
Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.
AS number
AS24572
Handle
YAHOO-JP-AS-AP
Organization
Yahoo Japan
Country
JP
Registry
APNIC
ASPA
None published
WHOIS recordAPNIC
% [whois.apnic.net] % Whois data copyright terms http://www.apnic.net/db/dbcopyright.html % Information related to 'AS23552 - AS24575' as-block: AS23552 - AS24575 descr: APNIC ASN block remarks: These AS numbers are further assigned by APNIC remarks: to APNIC members and end-users in the APNIC region remarks: AS23889 has been transfered to AfriNIC admin-c: HM20-AP tech-c: HM20-AP mnt-by: APNIC-HM mnt-lower: APNIC-HM last-modified: 2009-09-29T06:04:16Z source: APNIC role: APNIC Hostmaster address: PO Box 3646 address: South Brisbane address: QLD 4101 country: AU phone: +61 7 3858 3100 fax-no: +61 7 3858 3199 e-mail: helpdesk@apnic.net admin-c: AMS11-AP tech-c: AH256-AP nic-hdl: HM20-AP remarks: Administrator for APNIC notify: hostmaster@apnic.net mnt-by: MAINT-APNIC-AP last-modified: 2026-08-26T00:40:00Z source: APNIC % Information related to 'AS24538 - AS24575' as-block: AS24538 - AS24575 descr: APNIC ASN block remarks: These AS numbers are further assigned by APNIC remarks: to APNIC members and end-users in the APNIC region admin-c: HM20-AP tech-c: HM20-AP mnt-by: APNIC-HM mnt-lower: APNIC-HM last-modified: 2008-09-04T06:40:26Z source: APNIC role: APNIC Hostmaster address: PO Box 3646 address: South Brisbane address: QLD 4101 country: AU phone: +61 7 3858 3100 fax-no: +61 7 3858 3199 e-mail: helpdesk@apnic.net admin-c: AMS11-AP tech-c: AH256-AP nic-hdl: HM20-AP remarks: Administrator for APNIC notify: hostmaster@apnic.net mnt-by: MAINT-APNIC-AP last-modified: 2026-08-26T00:40:00Z source: APNIC % Information related to 'AS24572' % Abuse contact for 'AS24572' is 'ml-nwunit-bbnw@lycorp.co.jp' aut-num: AS24572 as-name: YAHOO-JP-AS-AP descr: Yahoo Japan country: JP import: from AS17676 action pref=200; accept ANY import: from AS2497 action pref=200; accept ANY export: to AS17676 announce AS24572 export: to AS2497 announce AS24572 org: ORG-YJ1-AP admin-c: YJ982-AP tech-c: YJ982-AP abuse-c: AY448-AP mnt-lower: MAINT-AP-YAHOO-JP mnt-routes: MAINT-AP-YAHOO-JP mnt-by: APNIC-HM mnt-irt: IRT-YAHOO-JP last-modified: 2021-05-18T21:44:59Z source: APNIC irt: IRT-YAHOO-JP address: Kioi Tower, Tokyo Garden Terrace Kioicho, 1-3 Kioicho, Chiyoda-ku, Tokyo, 1028282 Japan e-mail: ml-nwunit-bbnw@lycorp.co.jp abuse-mailbox: ml-nwunit-bbnw@lycorp.co.jp admin-c: yj982-ap tech-c: yj982-ap auth: # Filtered remarks: ml-nwunit-bbnw@lycorp.co.jp was validated on 2026-06-23 mnt-by: MAINT-AP-YAHOO-JP last-modified: 2026-06-23T00:00:38Z source: APNIC organisation: ORG-YJ1-AP org-name: Yahoo Japan org-type: LIR country: JP address: Kioi Tower, Tokyo Garden Terrace Kioicho address: 1-3 Kioicho phone: +81-3-6898-6280 e-mail: ml-nwunit-bbnw@lycorp.co.jp mnt-ref: APNIC-HM mnt-by: APNIC-HM last-modified: 2026-04-02T12:59:26Z source: APNIC role: ABUSE YAHOOJP country: ZZ address: Kioi Tower, Tokyo Garden Terrace Kioicho, 1-3 Kioicho, Chiyoda-ku, Tokyo, 1028282 Japan phone: +000000000 e-mail: ml-nwunit-bbnw@lycorp.co.jp admin-c: yj982-ap tech-c: yj982-ap nic-hdl: AY448-AP remarks: Generated from irt object IRT-YAHOO-JP remarks: ml-nwunit-bbnw@lycorp.co.jp was validated on 2026-06-23 abuse-mailbox: ml-nwunit-bbnw@lycorp.co.jp mnt-by: APNIC-ABUSE last-modified: 2026-06-27T02:40:20Z source: APNIC role: YAHOO JAPAN nic-hdl: YJ982-AP e-mail: route-admin@mail.yahoo.co.jp notify: route-
Routing
What AS24572 announces
Prefixes originated by AS24572 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).
IPv4 prefixes
4
IPv6 prefixes
1
IPv4 addresses
118,784 (464 /24s)
RPKI valid
5 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS24572
6
With an IRR route object
5 100%
Prefixes
Announced prefixes
Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.
IPv4 (4)
IPv6 (1)
RPKI valid RPKI invalid no ROA covers it
Neighbors
Who AS24572 is reached through
The AS just before AS24572 in the paths our looking glass collectors hold, for 5 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.
IRR
Routing registry objects
From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.
| Source | as-name | Maintained by |
|---|---|---|
| APNIC | YAHOO-JP-AS-AP | APNIC-HM |
| RADB | YAHOO-JAPAN-2 | MAINT-AS24572 |
Route objects with origin AS24572: RADB 6 · APNIC 5
as-sets that list AS24572 (12)