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.
AS19907 1 More Specifics 1 Total Advertisements NEUSTAR-AS6, US
156.154.202.0/24 156.154.200.0/22
Prefixes added and withdrawn by this origin AS in the past 7 days.
+ 156.154.202.0/24 Announced
whois: 402613
IANA has recorded AS19907 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS19907\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/
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
ASNumber: 19907
ASName: NEUSTAR-AS6
ASHandle: AS19907
RegDate: 2007-08-24
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/19907
OrgName: NeuStar, Inc.
OrgId: NEUS
Address: 45980 Center Oak Plaza
Address: Network Operations Center
City: Sterling
StateProv: VA
PostalCode: 20166
Country: US
RegDate: 2001-03-21
Updated: 2022-08-07
Comment: NPAC
Ref: https://rdap.arin.net/registry/entity/NEUS
OrgTechHandle: NETWO336-ARIN
OrgTechName: Network Engineering
OrgTechPhone: +1-801-770-1701
OrgTechEmail: siteprotect-sre@neustarsecurityservices.com
OrgTechRef: https://rdap.arin.net/registry/entity/NETWO336-ARIN
OrgNOCHandle: NETWO336-ARIN
OrgNOCName: Network Engineering
OrgNOCPhone: +1-801-770-1701
OrgNOCEmail: siteprotect-sre@neustarsecurityservices.com
OrgNOCRef: https://rdap.arin.net/registry/entity/NETWO336-ARIN
OrgDNSHandle: NETWO336-ARIN
OrgDNSName: Network Engineering
OrgDNSPhone: +1-801-770-1701
OrgDNSEmail: siteprotect-sre@neustarsecurityservices.com
OrgDNSRef: https://rdap.arin.net/registry/entity/NETWO336-ARIN
OrgAbuseHandle: NETWO336-ARIN
OrgAbuseName: Network Engineering
OrgAbusePhone: +1-801-770-1701
OrgAbuseEmail: siteprotect-sre@neustarsecurityservices.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/NETWO336-ARIN
OrgRoutingHandle: NETWO336-ARIN
OrgRoutingName: Network Engineering
OrgRoutingPhone: +1-801-770-1701
OrgRoutingEmail: siteprotect-sre@neustarsecurityservices.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/NETWO336-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.
#