37981 LINGTONG-AS-AP CHANGSHA LINGTONG COMMUNICATION TECHNOLOGY CO., LTD
Adjacency: 1 Upstream: 1 Downstream: 0
Upstream Adjacent AS list
AS17672 CHINATELECOM-HE-AS-AP asn for Hebei Provincial Net of CT
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 2114 AS37981 ORIGIN Originate: 69632 /15.91 Transit: 0 /0.00 LINGTONG-AS-AP CHANGSHA LINGTONG COMMUNICATION TECHNOLOGY CO., LTD
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 4241 AS37981 LINGTONG-AS-AP CHANGSHA LINGTONG COMMUNI 5 4 2 3 2 40.00% Prefix AS Path Aggregation Suggestion 121.42.64.0/20 4637 4134 17672 37981 37981 121.43.0.0/17 4637 4134 17672 37981 37981 + Announce - aggregate of 121.43.0.0/18 (4637 4134 17672 37981 37981) and 121.43.64.0/18 (4637 4134 17672 37981 37981) 121.43.0.0/18 4637 4134 17672 37981 37981 - Withdrawn - aggregated with 121.43.64.0/18 (4637 4134 17672 37981 37981) 121.43.64.0/18 4637 4134 17672 37981 37981 - Withdrawn - aggregated with 121.43.0.0/18 (4637 4134 17672 37981 37981) 121.43.128.0/17 4637 4134 17672 37981 37981 + Announce - aggregate of 121.43.128.0/18 (4637 4134 17672 37981 37981) and 121.43.192.0/18 (4637 4134 17672 37981 37981) 121.43.128.0/18 4637 4134 17672 37981 37981 - Withdrawn - aggregated with 121.43.192.0/18 (4637 4134 17672 37981 37981) 121.43.192.0/18 4637 4134 17672 37981 37981 - Withdrawn - aggregated with 121.43.128.0/18 (4637 4134 17672 37981 37981)
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS37981 5 More Specifics 5 Total Advertisements LINGTONG-AS-AP CHANGSHA LINGTONG COMMUNICATION TECHNOLOGY CO., LTD
121.42.64.0/20 121.40.0.0/14
121.43.0.0/18 121.40.0.0/14
121.43.64.0/18 121.40.0.0/14
121.43.128.0/18 121.40.0.0/14
121.43.192.0/18 121.40.0.0/14
whois: 402603
IANA has recorded AS37981 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS37981\n % [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS37888 - AS38911'
as-block: AS37888 - AS38911
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: 2009-09-29T06:04:16Z
source: APNIC
role: APNIC Hostmaster
address: 6 Cordelia Street
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: 2013-10-23T04:06:51Z
source: APNIC
% Information related to 'AS37971 - AS38085'
as-block: AS37971 - AS38085
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: 6 Cordelia Street
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: 2013-10-23T04:06:51Z
source: APNIC
% Information related to 'AS37981'
% Abuse contact for 'AS37981' is 'support@tyis.co.jp'
aut-num: AS37981
as-name: TYIS-AS-AP
descr: TOYO Internet Service Co., Ltd.
country: JP
org: ORG-TISC3-AP
admin-c: TISC2-AP
tech-c: TISC2-AP
abuse-c: AT1341-AP
mnt-lower: MAINT-TYIS-JP
mnt-routes: MAINT-TYIS-JP
mnt-by: APNIC-HM
mnt-irt: IRT-TYIS-JP
last-modified: 2020-09-15T13:49:41Z
source: APNIC
irt: IRT-TYIS-JP
address: Mitsubishijuko Yokohama Bldg, Minatomirai 3-3-1, Nishi-ku, Yokohama, Kanagawa 220-8401
e-mail: support@tyis.co.jp
abuse-mailbox: support@tyis.co.jp
admin-c: TISC2-AP
tech-c: TISC2-AP
auth: # Filtered
remarks: support@tyis.co.jp was validated on 2026-05-05
mnt-by: MAINT-TYIS-JP
last-modified: 2026-05-05T13:11:15Z
source: APNIC
organisation: ORG-TISC3-AP
org-name: TOYO Internet Service Co., Ltd.
org-type: LIR
country: JP
address: Mitsubishijuko Yokohama Bldg, Minatomirai 3-3-1, Nishi-ku
phone: +81-45-319-4590
fax-no: +81-45-345-2650
e-mail: support@tyis.co.jp
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2023-09-05T13:02:22Z
source: APNIC
role: ABUSE TYISJP
country: ZZ
address: Mitsubishijuko Yokohama Bldg, Minatomirai 3-3-1, Nishi-ku, Yokohama, Kanagawa 220-8401
phone: +000000000
e-mail: support@tyis.co.jp
admin-c: TISC2-AP
tech-c: TISC2-AP
nic-hdl: AT1341-AP
remarks: Generated from irt object IRT-TYIS-JP
remarks: support@tyis.co.jp was validated on 2026-05-05
abuse-mailbox: support@tyis.co.jp
mnt-by: APNIC-ABUSE
last-modified: 2026-05-05T13:11:37Z
source: APNIC
role: TOYO Internet Service Co Ltd administrator
address: Mitsubishijuko Yokohama Bldg, Minatomirai 3-3-1
address: Nishi-ku, Yokohama, Kanagawa 220-8401
country: JP
phone: +81-45-319-4590
fax-no: +81-45-345-2650
e-mail: support@tyis.co.jp
admin-c: TISC2-AP
tech-c: TISC2-AP
nic-hdl: TISC2-AP
mnt-by: MAINT-TYIS-JP
last-modified: 2026-02-24T06:44:49Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU5)