ASN Lookup Tool

Wende Tan CN CN 6 Routes

AS Data

AS209300

AS209300Wende Tan

AS Number 209300
AS Name TWD2-NET
Organization Wende Tan(org-wt43-ripe)
Country CN
Number of IPv4 Routes 1
Number of IPv6 Routes 5
ASN type ISP
Allocation Status ASSIGNED
Registry RIPE
Date Allocated 2019-03-01

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Use ASN data for AS209300 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
44.30.120.0/24 256
2a05:1085::/32 ~79×10²⁷
2404:f4c0:f001::/48 ~1×10²⁴
2404:f4c0:f002::/48 ~1×10²⁴
2a0c:b641:570::/48 ~1×10²⁴
2404:f4c0:f000::/44 ~19×10²⁴

Raw Whois Response

% 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.
%       To receive output for a database update, use the "-B" flag.

% 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 (ABERDEEN)

Parsed Whois Response

Peers

AS Number Description Country
AS8772 NetAssist LLC UA
AS142650 China Education and Research Network CERNET CN
AS209306 Jin Shaohai CN
AS29632 Netassist International EOOD BG
AS4842 Tianhai InfoTech CN
AS6939 Hurricane Electric LLC US
AS24239 TWD2 Education and Research Network CN
AS20473 The Constant Company, LLC US
AS38255 Tsinghua University CN
AS8298 IPng Networks GmbH CH

Upstreams

AS Number Description Country
AS8772 NetAssist LLC UA
AS142650 China Education and Research Network CERNET CN
AS29632 Netassist International EOOD BG
AS20473 The Constant Company, LLC US
AS38255 Tsinghua University CN
AS8298 IPng Networks GmbH CH
AS45576 Tsinghua University CN

Downstreams

AS Number Description Country
AS24239 TWD2 Education and Research Network CN
AS38255 Tsinghua University CN

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Frequently Asked Questions

ASN AS209300 is an Autonomous System Number used to identify a network for BGP internet routing.
AS209300 is listed under Wende Tan.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.