AS19281 Quad9
AS19281 (QUAD9-AS-1) is registered to Quad9 in US, through ARIN. It originates 6 prefixes in the global routing table.
5
IPv4 prefixes
1
IPv6 prefixes
1,280
IPv4 addresses
100%
RPKI valid
Registration
Who holds AS19281
Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.
AS number
AS19281
Handle
QUAD9-AS-1
Organization
Quad9
Country
US
Registry
ARIN
ASPA
26 providers
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: 19281 ASName: QUAD9-AS-1 ASHandle: AS19281 RegDate: 2017-09-13 Updated: 2019-11-13 Comment: Quad9 is a non-profit that provides free, secure, open DNS recursive resolution services on our anycast address space. Please see https://www.quad9.net/ for details. Ref: https://rdap.arin.net/registry/autnum/19281 OrgName: Quad9 OrgId: CLEAN-97 Address: CleanerDNS Inc. dba Quad9 Address: 1442A Walnut Street, Suite 501 City: Berkeley StateProv: CA PostalCode: 94709 Country: US RegDate: 2017-09-07 Updated: 2025-01-10 Comment: https://quad9.net/ Comment: Global Public Recursive DNS Resolver Service Ref: https://rdap.arin.net/registry/entity/CLEAN-97 OrgTechHandle: KARAD10-ARIN OrgTechName: Kara, Darren OrgTechPhone: +1-703-929-8954 OrgTechEmail: noc@quad9.net OrgTechRef: https://rdap.arin.net/registry/entity/KARAD10-ARIN OrgAbuseHandle: QUADA1-ARIN OrgAbuseName: Quad9 Abuse OrgAbusePhone: +1-415-831-3129 OrgAbuseEmail: abuse@quad9.net OrgAbuseRef: https://rdap.arin.net/registry/entity/QUADA1-ARIN OrgNOCHandle: QNO5-ARIN OrgNOCName: Quad9 Network Operations OrgNOCPhone: +1-415-831-3129 OrgNOCEmail: noc@quad9.net OrgNOCRef: https://rdap.arin.net/registry/entity/QNO5-ARIN OrgTechHandle: QNO5-ARIN OrgTechName: Quad9 Network Operations OrgTechPhone: +1-415-831-3129 OrgTechEmail: noc@quad9.net OrgTechRef: https://rdap.arin.net/registry/entity/QNO5-ARIN OrgTechHandle: SHRES60-ARIN OrgTechName: Shrestha, Kabindra OrgTechPhone: +1-415-831-3111 OrgTechEmail: kabindra@pch.net OrgTechRef: https://rdap.arin.net/registry/entity/SHRES60-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. #
Routing
What AS19281 announces
Prefixes originated by AS19281 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).
IPv4 prefixes
5
IPv6 prefixes
1
IPv4 addresses
1,280 (5 /24s)
RPKI valid
6 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS19281
13
With an IRR route object
6 100%
Prefixes
Announced prefixes
Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.
IPv4 (5)
IPv6 (1)
RPKI valid RPKI invalid no ROA covers it
Neighbors
Who AS19281 is reached through
The AS just before AS19281 in the paths our looking glass collectors hold, for 6 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.
ASPA
Provider authorization
AS19281 publishes an ASPA naming these providers. Check a path.
AS42 WOODYNET-1AS204 PSCNET-ASAS1741 FUNETAS CSCAS1930 RCCNAS2495 KANRENAS5050 PSC-EXTAS7195 AS7195AS14041 AS-FRGPAS20326 TERASWITCHAS27552 TWDXAS42541 FIBERBYAS48635 CLDIN-NLAS49115 EMAX_AS1AS49544 i3DnetAS50629 LWLCOMAS51095 E1-EMEAAS58511 ANYCAST-GLOBAL-BACKBONEAS152735 CPDCL-AS-APAS198385 AlpineDCAS209049 MICHCOMAS272806 AS272806AS272996 AS272996AS273890 AS273890AS328977 Wavex Internet Service Provider LTDAS396998 PATH-NETWORKAS399788 QUADSTATE-NET
IRR
Routing registry objects
From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.
| Source | as-name | Maintained by |
|---|---|---|
| ARIN | AS-QUAD9-ARIN | MNT-CLEAN-97 |
| RADB | QUAD9-AS-1 | MAINT-AS3856, MAINT-AS19281 |
Route objects with origin AS19281: ARIN 11 · RADB 8 · LEVEL3 4
as-sets that list AS19281 (40)
AS-53427-TGLOBALAS-7195:AS-PROTECTED-CUSTAS-ALPINEDCAS-BBIX-TAS-BBIX-T-V6AS-BTN-CUSTOMERSAS-CIT-CUSTAS-CTBC-TOOLS-8AS-E1-AUTOMATION-CUSTOMERAS-EDGEUNO-TRAS-EMAXAS-FRGPAS-FUNETAS-HURRICANEV6AS-ITCAS-LWLAS-NNENIX-CONNECTORSAS-OPENIXPAS-PACKETAS-PCHAS-QUAD9-ANYCASTAS-RCCNAS-SOFTLAYERAS-TOWARDEXAS-TOWARDEX-CUSTOMERSAS-YIPESAS141013:AS-GETAFIX-REACH-PEERSAS16374:AS-BCIX-ALLAS16374:AS-BCIX-RSAS213597:AS-QUAD9-ALLAS213973:AS-BCIXAS2495:AS-MEMBERSAS272996:AS-SNWXAS273890:AS-CUSTOMERSLV1AS34984:AS-TELLCOMAS396998:AS-CUSTOMERS-1AS5050:AS-COMMODITY-ONLYAS61010:AS-IPNET-IX-KTKZAS7545:AS-TPGN-CUSTOMERSAS7606:AS-NSW-IX