What is ASN AS204185?

ASN AS204185 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS204185?

AS204185 is listed under Yuchen Ma.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS204185 Yuchen Ma | IPGeolocation.io

ASN Lookup Tool

Yuchen Ma starlab.eu.org

CN 17 Routes

AS Data

AS204185

AS204185 – Yuchen Ma

AS Number	204185
AS Name	StarCloud-AS
Organization	Yuchen Ma(org-ym22-ripe)
Country	CN
Website	starlab.eu.org
Number of IPv4 Routes	0
Number of IPv6 Routes	17
ASN type	INDIVIDUAL
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2018-04-10

ASN Intelligence API for production workflows

Use ASN data for AS204185 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2602:feda:2a4::/48	AS204185	Yuchen Ma	Yuchen Ma	~1×10²⁴
2a0b:4340:434::/48	AS204185	Yuchen Ma	Yuchen Ma	~1×10²⁴
2a0b:4340:402::/48	AS204185	Yuchen Ma	Yuchen Ma	~1×10²⁴
2a0b:4340:404::/48	AS204185	Yuchen Ma	Yuchen Ma	~1×10²⁴
2a0b:4340:406::/48	AS204185	Yuchen Ma	Yuchen Ma	~1×10²⁴
2602:feda:2a6::/48	AS204185	Yuchen Ma	Yuchen Ma	~1×10²⁴
2602:feda:2a0::/48	AS204185	Yuchen Ma	Yuchen Ma	~1×10²⁴
2602:feda:2a2::/48	AS204185	Yuchen Ma	Yuchen Ma	~1×10²⁴
2a0b:4340:403::/48	AS204185	Yuchen Ma	Yuchen Ma	~1×10²⁴
2602:feda:2aa::/48	AS204185	Yuchen Ma	Yuchen Ma	~1×10²⁴

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 'AS203940 - AS205662'

as-block:       AS203940 - AS205662
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:        2026-03-05T15:29:31Z
last-modified:  2026-03-05T15:29:31Z
source:         RIPE

% Information related to 'AS204185'

% Abuse contact for 'AS204185' is 'abuse@starlab.eu.org'

aut-num:        AS204185
as-name:        StarCloud-AS
descr:          StarCloud global network powered by high-end Arduino BGP routers.
descr:          Network is run for lab research and non-commercial use.
org:            ORG-YM22-RIPE
import:         from AS6939 accept ANY
export:         to AS6939 announce AS204185
import:         from AS20473 accept ANY
export:         to AS20473 announce AS204185
import:         from AS43126 accept ANY
export:         to AS43126 announce AS204185
import:         from AS205610 accept ANY
export:         to AS205610 announce AS204185
sponsoring-org: ORG-MNI3-RIPE
admin-c:        YM1800-RIPE
tech-c:         YM1800-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         STARCLOUD-MNT
created:        2018-04-10T15:13:00Z
last-modified:  2021-08-18T10:29:31Z
source:         RIPE

organisation:   ORG-YM22-RIPE
org-name:       Yuchen Ma
country:        CN
org-type:       OTHER
address:        Student Hall, HKUST, Clear Water Bay, Kowloon, Hong Kong
abuse-c:        STAR11-RIPE
mnt-ref:        STARCLOUD-MNT
remarks:        Network is run for lab research and non-commercial use.
mnt-by:         STARCLOUD-MNT
created:        2018-03-23T17:49:28Z
last-modified:  2022-12-01T17:30:33Z
source:         RIPE # Filtered

person:         Yuchen Ma
address:        Student Hall, HKUST, Clear Water Bay, Kowloon, Hong Kong
phone:          +852.64673535
nic-hdl:        YM1800-RIPE
mnt-by:         STARCLOUD-MNT
created:        2017-10-08T09:21:33Z
last-modified:  2020-03-21T11:13:35Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.121.2 (ABERDEEN)

Parsed Whois Response

Peers

AS Number	Description	Country
AS43126	RIPE Network Coordination Centre	NL
AS6939	Hurricane Electric LLC	US
AS20473	The Constant Company, LLC	US
AS38008	Aperture Science Limited	HK
AS205610	Huanjie Zhu	CN

Upstreams

AS Number	Description	Country
AS6939	Hurricane Electric LLC	US
AS20473	The Constant Company, LLC	US
AS38008	Aperture Science Limited	HK