ResearchRouting table, RPKI, IRR & looking glass

AS20144 ICANN

AS20144 (IMRS) is registered to ICANN in US, through ARIN. It originates 19 prefixes in the global routing table.

9
IPv4 prefixes
10
IPv6 prefixes
2,304
IPv4 addresses
0%
RPKI valid
Registration

Who holds AS20144

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS20144
Handle
IMRS
Organization
ICANN
Country
US
Registry
ARIN
ASPA
None published
WHOIS recordARIN
#
# 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:       20144
ASName:         IMRS
ASHandle:       AS20144
RegDate:        2001-03-30
Updated:        2022-05-04
Comment:        ICANN - DNS Engineering - www: http://www.dns.icann.org/imrs
Comment:        
Comment:        The ICANN Managed Root Server (IMRS), One of the 13 Internet root name server,
Comment:        is being operated by ICANN
Comment:        
Comment:        AS20144 is dedicated for the use of IMRS and
Comment:        distributed using Anycast.
Comment:        
Comment:        24/7/365 NOC via email noc@dns.icann.org via
Comment:        phone +1.424.217.1313
Comment:        
Comment:        Visit http://as20144.peeringdb.com for our
Comment:        peering information
Ref:            https://rdap.arin.net/registry/autnum/20144


OrgName:        ICANN
OrgId:          ICANN
Address:        12025 Waterfront Dr.
Address:        Suite 300
City:           Los Angeles
StateProv:      CA
PostalCode:     90094
Country:        US
RegDate:        2001-03-30
Updated:        2024-05-31
Ref:            https://rdap.arin.net/registry/entity/ICANN


OrgTechHandle: CORZO1-ARIN
OrgTechName:   Corzo, Eduardo 
OrgTechPhone:  +1-310-383-0976 
OrgTechEmail:  eduardo.corzo@icann.org
OrgTechRef:    https://rdap.arin.net/registry/entity/CORZO1-ARIN

OrgTechHandle: JENKI373-ARIN
OrgTechName:   Jenkins, Josh 
OrgTechPhone:  +1-310-578-8699 
OrgTechEmail:  josh.jenkins@icann.org
OrgTechRef:    https://rdap.arin.net/registry/entity/JENKI373-ARIN

OrgDNSHandle: ICANN-ARIN
OrgDNSName:   ICANN DNS
OrgDNSPhone:  +1-424-217-1313 
OrgDNSEmail:  noc@dns.icann.org
OrgDNSRef:    https://rdap.arin.net/registry/entity/ICANN-ARIN

OrgAbuseHandle: ICANN-NET
OrgAbuseName:   Internet Corporation for Assigned Names and Number
OrgAbusePhone:  +1-310-301-3889 
OrgAbuseEmail:  ops@icann.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ICANN-NET


#
# 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.
#
Routing

What AS20144 announces

Prefixes originated by AS20144 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
9
IPv6 prefixes
10
IPv4 addresses
2,304 (9 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
19
ROAs naming AS20144
0
With an IRR route object
19 100%
Prefixes

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (9)
192.0.37.0/24192.0.38.0/24192.0.40.0/24192.0.41.0/24199.7.82.0/23199.7.83.0/24199.7.94.0/24199.7.95.0/24199.43.132.0/24
IPv6 (10)
2001:500:3::/482001:500:8c::/482001:500:9c::/482001:500:9d::/482001:500:9e::/472001:500:9f::/482602:800:9004::/482602:800:9005::/482620:0:22b0::/482620:0:2ee0::/48

RPKI valid   RPKI invalid   no ROA covers it

Neighbors

Who AS20144 is reached through

The AS just before AS20144 in the paths our looking glass collectors hold, for 19 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

AS6939 HURRICANE 11AS1299 TWELVE99 8AS37100 SEACOM Limited 2AS8452 TE-AS 2AS53062 AS53062 2AS33544 WILINE 2AS18200 OPT-NC-AS-AP 2AS3491 PCCWG-APAC-HK 1AS37721 Virtual Technologies & Solutions 1AS31713 GWCOMMS-MPLS 1AS2914 NTT-DATA-2914 1
IRR

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
CANARIEL-ROOTBCNET-BC-MNT

Route objects with origin AS20144: RADB 20 · NTTCOM 3

as-sets that list AS20144 (300)first 40 shown
AS-10099AS-20144-ICANNAS-2018AS-267613AS-328200-ALMADARAS-35313AS-36937:AS-PEERSAS-37084-PEERSAS-43413_NT-NIXAS-4648-CUSTOMERSAS-50010AS-53062-CUSTOMERSAS-7784:AS-CUSTOMERSAS-8151AS-ACS-TRANSITAS-ALLSTREAM-CLIENTSAS-AMCAS-AMC-TESTAS-ANTEL-ALLAS-AQNETAS-AS209-CUSTAS-ATOM86CUST4AS-ATOM86CUST6AS-AUREONAS-AUREON-TRANSITAS-BAHNHOFAS-BELPAKAS-BRIGHTSOLIDAS-CATNIX-SERVICESAS-CITRANETAS-COLOCALLAS-COLOCALL-UAAS-COLOCALL6AS-COMCAST-IBONEAS-CTBC-CUSTOMERS116AS-CTBC-CUSTOMERS23AS-CTBC-CUSTOMERS25AS-CTBC-TOOLS-10AS-CTHBAS-CUSTDC
Tools

Check AS20144 live

ASN lookup and WHOISRPKI validatorASPA validatorIRR lookup