This AS is not currently used to announce prefixes in the global routing table, nor is it used as a visible transit AS.
whois: 402332
IANA has recorded AS18508 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS18508\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: 18508
ASName: YUME-VA
ASHandle: AS18508
RegDate: 2017-08-29
Updated: 2019-06-24
Ref: https://rdap.arin.net/registry/autnum/18508
OrgName: RhythmOne, LLC
OrgId: RL-272
Address: 3535 Factoria Blvd SE suite 440
City: Bellevue
StateProv: WA
PostalCode: 98006
Country: US
RegDate: 2015-03-20
Updated: 2026-03-09
Comment: Standard NOC hours are 8am to 11pm EST
Ref: https://rdap.arin.net/registry/entity/RL-272
OrgDNSHandle: NETWO9521-ARIN
OrgDNSName: Network Engineering
OrgDNSPhone: +1-425-279-1200
OrgDNSEmail: hkrishnan@nexxen.com
OrgDNSRef: https://rdap.arin.net/registry/entity/NETWO9521-ARIN
OrgAbuseHandle: SECUR203-ARIN
OrgAbuseName: Security Team
OrgAbusePhone: +1-650-481-8010
OrgAbuseEmail: abuse@nexxen.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/SECUR203-ARIN
OrgNOCHandle: NETWO9521-ARIN
OrgNOCName: Network Engineering
OrgNOCPhone: +1-425-279-1200
OrgNOCEmail: hkrishnan@nexxen.com
OrgNOCRef: https://rdap.arin.net/registry/entity/NETWO9521-ARIN
OrgRoutingHandle: NETWO9521-ARIN
OrgRoutingName: Network Engineering
OrgRoutingPhone: +1-425-279-1200
OrgRoutingEmail: hkrishnan@nexxen.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/NETWO9521-ARIN
OrgTechHandle: NETWO9521-ARIN
OrgTechName: Network Engineering
OrgTechPhone: +1-425-279-1200
OrgTechEmail: hkrishnan@nexxen.com
OrgTechRef: https://rdap.arin.net/registry/entity/NETWO9521-ARIN
OrgTechHandle: NETEN31-ARIN
OrgTechName: Neteng
OrgTechPhone: +1-650-481-8010
OrgTechEmail: kkiesenhofer@nexxen.com
OrgTechRef: https://rdap.arin.net/registry/entity/NETEN31-ARIN
OrgTechHandle: KIESE8-ARIN
OrgTechName: Kiesenhofer, Klaus
OrgTechPhone: +1-607-216-7070
OrgTechEmail: kkiesenhofer@nexxen.com
OrgTechRef: https://rdap.arin.net/registry/entity/KIESE8-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.
#