209300 TWD2-NET TWD2 Education and Research Network, CN
Adjacency: 1 Upstream: 1 Downstream: 0
Upstream Adjacent AS list
AS20473 AS-VULTR - The Constant Company, LLC, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 71929 AS209300 ORIGIN Originate: 256 /24.00 Transit: 0 /0.00 TWD2-NET TWD2 Education and Research Network, CN
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 65432 AS209300 TWD2-NET TWD2 Education and Research Network, 1 0 0 1 0 0.00% Prefix AS Path Aggregation Suggestion 44.30.120.0/24 4777 2516 3257 20473 209300
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS209300 1 More Specifics 1 Total Advertisements TWD2-NET TWD2 Education and Research Network, CN
44.30.120.0/24 44.0.0.0/9
whois: 402332
IANA has recorded AS209300 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS209300\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 'AS208189 - AS214345'
as-block: AS208189 - AS214345
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: 2026-02-12T14:40:05Z
last-modified: 2026-02-12T14:40:05Z
source: RIPE
% Information related to 'AS209300'
% Abuse contact for 'AS209300' is 'twd2.me+abuse@gmail.com'
aut-num: AS209300
as-name: TWD2-NET
descr: TWD2 Education and Research Network
descr: London, United Kingdom
org: ORG-WT43-RIPE
import: from AS6939 accept ANY
export: to AS6939 announce AS209300:AS-CUSTOMERS
import: from AS20473 accept ANY
export: to AS20473 announce AS209300:AS-CUSTOMERS
import: from AS4842 accept ANY
export: to AS4842 announce AS209300:AS-CUSTOMERS
import: from AS209306 accept AS209306
export: to AS209306 announce AS209300:AS-CUSTOMERS
import: from AS24239 accept ANY
export: to AS24239 announce ANY
mp-import: afi ipv6.unicast from AS29632 accept ANY
mp-export: afi ipv6.unicast to AS29632 announce AS209300:AS-CUSTOMERS
admin-c: WTNN1-RIPE
tech-c: WTNN1-RIPE
abuse-c: WTNN1-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: twd2-mnt
created: 2019-03-01T12:14:34Z
last-modified: 2024-04-24T17:56:21Z
source: RIPE
sponsoring-org: ORG-CR158-RIPE
organisation: ORG-WT43-RIPE
org-name: Wende Tan
country: CN
org-type: OTHER
address: Department of Computing
address: Imperial College London
address: Huxley Building
address: 180 Queen's Gate, London, SW7 2RH
address: UNITED KINGDOM
abuse-c: WTNN1-RIPE
admin-c: WTNN1-RIPE
tech-c: WTNN1-RIPE
mnt-ref: twd2-mnt
mnt-by: twd2-mnt
created: 2019-02-23T16:24:54Z
last-modified: 2025-04-14T20:54:32Z
source: RIPE # Filtered
role: TWD2 Education and Research Network NOC
address: Department of Computing
address: Imperial College London
address: Huxley Building
address: 180 Queen's Gate, London, SW7 2RH
address: UNITED KINGDOM
nic-hdl: WTNN1-RIPE
abuse-mailbox: twd2.me+abuse@gmail.com
mnt-by: twd2-mnt
created: 2019-02-23T16:18:42Z
last-modified: 2025-04-14T20:50:58Z
source: RIPE # Filtered
% This query was served by the RIPE Database Query Service version 1.121.2 (SHETLAND)