This AS is not currently used to announce prefixes in the global routing table, nor is it used as a visible transit AS.
whois: 402603
IANA has recorded AS1921 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS1921\n % This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html
% Note: this output has been filtered.
% Information related to 'AS1921 - AS1923'
as-block: AS1921 - AS1923
descr: RIPE NCC ASN block
remarks: These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by: RIPE-NCC-HM-MNT
created: 2018-11-22T15:27:14Z
last-modified: 2018-11-22T15:27:14Z
source: RIPE
% Information related to 'AS1921'
% Abuse contact for 'AS1921' is 'reports@cert.at'
aut-num: AS1921
as-name: RCODEZERO-ANYCAST-SEC1-TLD
descr: RcodeZero Anycast DNS
org: ORG-IGFI3-RIPE
sponsoring-org: ORG-nIBu1-RIPE
remarks: =================================================
remarks: Transit: nic.at GmbH
import: from AS30971 accept ANY
export: to AS30971 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS30971 accept ANY
mp-export: afi ipv6.unicast to AS30971 announce AS-RCODEZERO
remarks:
remarks: Transit: Cloud2 - LAX/FMT/HE
import: from AS207021 accept ANY
export: to AS207021 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS207021 accept ANY
mp-export: afi ipv6.unicast to AS207021 announce AS-RCODEZERO
remarks:
remarks: Transit: IEDR
import: from AS42310 accept ANY
export: to AS42310 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS42310 accept ANY
mp-export: afi ipv6.unicast to AS42310 announce AS-RCODEZERO
remarks:
remarks: Transit: NASK
import: from AS8308 accept ANY
export: to AS8308 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS8308 accept ANY
mp-export: afi ipv6.unicast to AS8308 announce AS-RCODEZERO
remarks:
remarks: Transit: 365 Data Centers (Atlantic Metro AS)
import: from AS29838 accept ANY
export: to AS29838 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS29838 accept ANY
mp-export: afi ipv6.unicast to AS29838 announce AS-RCODEZERO
remarks:
remarks: Transit: 365 Data Centers (Inforelay AS)
import: from AS33597 accept ANY
export: to AS33597 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS33597 accept ANY
mp-export: afi ipv6.unicast to AS33597 announce AS-RCODEZERO
remarks:
remarks: Transit: 365 Data Centers (BroadbandONE)
import: from AS19151 accept ANY
export: to AS19151 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS19151 accept ANY
mp-export: afi ipv6.unicast to AS19151 announce AS-RCODEZERO
remarks:
remarks: Transit: i3D
import: from AS49544 accept ANY
export: to AS49544 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS49544 accept ANY
mp-export: afi ipv6.unicast to AS49544 announce AS-RCODEZERO
remarks:
remarks: Transit: ANEXIA
import: from AS42473 accept ANY
export: to AS42473 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS42473 accept ANY
mp-export: afi ipv6.unicast to AS42473 announce AS-RCODEZERO
remarks:
remarks: Transit: Portlane
import: from AS42708 accept ANY
export: to AS42708 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS42708 accept ANY
mp-export: afi ipv6.unicast to AS42708 announce AS-RCODEZERO
remarks:
remarks: Transit: Vultr/Choopa
import: from AS20473 accept ANY
export: to AS20473 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS20473 accept ANY
mp-export: afi ipv6.unicast to AS20473 announce AS-RCODEZERO
remarks:
remarks: Transit: nic.br
import: from AS22548 accept ANY
export: to AS22548 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS22548 accept ANY
mp-export: afi ipv6.unicast to AS22548 announce AS-RCODEZERO
remarks:
remarks: Transit: DigitalPacific
import: from AS55803 accept ANY
export: to AS55803 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS55803 accept ANY
mp-export: afi ipv6.unicast to AS55803 announce AS-RCODEZERO
remarks:
remarks: Transit: HostVirtual
import: from AS36236 accept ANY
export: to AS36236 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS36236 accept ANY
mp-export: afi ipv6.unicast to AS36236 announce AS-RCODEZERO
remarks:
remarks: Transit: Infomaniak
import: from AS29222 accept ANY
export: to AS29222 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS29222 accept ANY
mp-export: afi ipv6.unicast to AS29222 announce AS-RCODEZERO
remarks:
remarks: Transit: LINX-AS
import: from AS5459 accept ANY
export: to AS5459 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS5459 accept ANY
mp-export: afi ipv6.unicast to AS5459 announce AS-RCODEZERO
remarks:
remarks: Transit: HE IPv6 only
mp-import: afi ipv6.unicast from AS6939 accept ANY
mp-export: afi ipv6.unicast to AS6939 announce AS-RCODEZERO
remarks:
remarks: Transit: First Colo
import: from AS44066 accept ANY
export: to AS44066 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS44066 accept ANY
mp-export: afi ipv6.unicast to AS44066 announce AS-RCODEZERO
remarks:
remarks: Transit: G-Core Labs S.A.
import: from AS199524 accept ANY
export: to AS199524 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS199524 accept ANY
mp-export: afi ipv6.unicast to AS199524 announce AS-RCODEZERO
remarks:
remarks: Transit: Cloudflare
export: to AS13335 announce AS-RCODEZERO
mp-export: afi ipv6.unicast to AS13335 announce AS-RCODEZERO
remarks:
remarks: Transit: Edgeuno
import: from AS7195 accept ANY
export: to AS7195 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS7195 accept ANY
mp-export: afi ipv6.unicast to AS7195 announce AS-RCODEZERO
remarks:
remarks: Transit: nic.hu
import: from AS12303 accept ANY
export: to AS12303 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS12303 accept ANY
mp-export: afi ipv6.unicast to AS12303 announce AS-RCODEZERO
remarks:
remarks: Transit: ScaleUp Technologies
import: from AS29014 accept ANY
export: to AS29014 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS29014 accept ANY
mp-export: afi ipv6.unicast to AS29014 announce AS-RCODEZERO
remarks:
remarks: Transit: Gigahost.no
import: from AS56655 accept ANY
export: to AS56655 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS56655 accept ANY
mp-export: afi ipv6.unicast to AS56655 announce AS-RCODEZERO
remarks:
remarks: Routeserver: Rheintal IX
import: from AS58171 accept AS-RIX-RS
export: to AS58171 announce AS-RCODEZERO
mp-import: afi ipv6.unicast from AS58171 accept AS-RIX-RS
mp-export: afi ipv6.unicast to AS58171 announce AS-RCODEZERO
remarks:
remarks: =================================================
remarks: Customer: ACOnet/Univie (Dallas)
import: from AS35052 accept AS35052
export: to AS35052 announce ANY
mp-import: afi ipv6.unicast from AS35052 accept AS35052
mp-export: afi ipv6.unicast to AS35052 announce ANY
remarks:
remarks: Customer: ACOnet/Univie (London)
import: from AS49488 accept AS49488
export: to AS49488 announce ANY
mp-import: afi ipv6.unicast from AS35052 accept AS35052
mp-export: afi ipv6.unicast to AS35052 announce ANY
remarks:
remarks: Customer: b.dns.br (Singapore)
import: from AS10906 accept AS10906
export: to AS10906 announce ANY
mp-import: afi ipv6.unicast from AS10906 accept AS10906
mp-export: afi ipv6.unicast to AS10906 announce ANY
remarks:
remarks: Customer: d.dns.br (Singapore)
import: from AS11644 accept AS11644
export: to AS11644 announce ANY
mp-import: afi ipv6.unicast from AS11644 accept AS11644
mp-export: afi ipv6.unicast to AS11644 announce ANY
remarks: =================================================
descr: e2ae41441ccec3d294d6c17d3b7d1bdde4286f12
mnt-by: RIPE-NCC-LEGACY-MNT
mnt-by: NICAT-MNT
admin-c: RS3195-RIPE
admin-c: KD36
tech-c: Nto1-RIPE
status: LEGACY
created: 2002-08-21T16:07:49Z
last-modified: 2026-05-12T21:30:54Z
source: RIPE
organisation: ORG-IGFI3-RIPE
org-name: ipcom GmbH
country: AT
reg-nr: FN 257847m
org-type: OTHER
address: Karlsplatz 1/2/9, 1010 Wien, Austria
mnt-ref: NICAT-MNT
mnt-by: NICAT-MNT
admin-c: Nto1-RIPE
abuse-c: Nto1-RIPE
created: 2012-09-10T10:29:23Z
last-modified: 2026-05-19T09:35:06Z
source: RIPE # Filtered
role: NIC.at Operations Object
address: Jakob-Haringerstrasse 8
address: A-5020 Salzburg
address: Austria
phone: +43 662 4669 0
fax-no: +43 662 4669 19
admin-c: KD36
admin-c: RS3195-RIPE
tech-c: MB125
tech-c: MHO44-RIPE
tech-c: HAD45-RIPE
tech-c: KD36
tech-c: TS40375-RIPE
tech-c: FR9272-RIPE
nic-hdl: Nto1-RIPE
mnt-by: NICAT-MNT
created: 2010-02-17T17:07:26Z
last-modified: 2025-11-20T14:06:30Z
source: RIPE # Filtered
abuse-mailbox: reports@cert.at
%ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
%
% Queries from your IP address have passed the daily limit of controlled objects.
% Access from your host has been temporarily denied.
% For more information, see
% https://docs.db.ripe.net/FAQ#why-did-i-receive-an-error-201-access-denied
% This query was served by the RIPE Database Query Service version 1.122.1 (ABERDEEN)