What is ASN AS204406?

ASN AS204406 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS204406?

AS204406 is listed under Rudolf Maduro.

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?

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AS204406 Rudolf Maduro | IPGeolocation.io

ASN Lookup Tool

Rudolf Maduro as204406.net

NL 4 Routes

AS Data

AS204406

AS204406 – Rudolf Maduro

AS Number	204406
AS Name	RUDOLFMADURO-AS
Organization	Rudolf Maduro(org-lcfr2-ripe)
Country	NL
Website	as204406.net
Number of IPv4 Routes	0
Number of IPv6 Routes	4
ASN type	ISP
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2022-08-23

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2a0e:8f02:f04b::/48	AS204406	Rudolf Maduro	Rudolf Maduro	~1×10²⁴
2a06:a005:1c90::/44	AS204406	Rudolf Maduro	Rudolf Maduro	~19×10²⁴
2a06:a005:1660::/44	AS204406	Rudolf Maduro	Rudolf Maduro	~19×10²⁴
2a0e:b107:1b94::/48	AS204406	Rudolf Maduro	Stichting Lucifer	~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 'AS204406'

% Abuse contact for 'AS204406' is 'abuse@as204406.net'

aut-num:        AS204406
as-name:        RUDOLFMADURO-AS
org:            ORG-LCFR2-RIPE
sponsoring-org: ORG-OG36-RIPE
remarks:        <--- This is a personal ASN of Rudolf Maduro - I am not a business just a hobbyist --->
remarks:        <--- I do use RPKI filtering however I only announce my own prefixes, so don't ask me for a downstream transit connection --->
remarks:        <--- Transit --->
import:         from AS41051 accept ANY
export:         to AS41051 announce AS204406
import:         from AS212895 accept ANY
export:         to AS212895 announce AS204406
import:         from AS58057 accept ANY
export:         to AS58057 announce AS204406
import:         from AS209533 accept ANY
export:         to AS209533 announce AS204406
remarks:        <--- IX route servers --->
remarks:        <--- 4ixp.net --->
import:         from AS35708 accept ANY
export:         to AS35708 announce AS204406
remarks:        <--- ixp.cat --->
import:         from AS49459 accept ANY
export:         to AS49459 announce AS204406
remarks:        <--- bgp.exchange --->
import:         from AS24381 accept ANY
export:         to AS24381 announce AS204406
remarks:        <--- Peers --->
admin-c:        LCFR3-RIPE
tech-c:         LCFR3-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         LUCIFER-MNT
created:        2022-08-23T07:16:13Z
last-modified:  2025-01-29T23:09:56Z
source:         RIPE

organisation:   ORG-LCFR2-RIPE
org-name:       Rudolf Maduro
country:        NL
descr:          LUCIFER IPv6 experimental network for educational purposes
org-type:       OTHER
address:        Van der Werfstraat 42
address:        2312 VX, Leiden
address:        The Netherlands
abuse-c:        ACRO49423-RIPE
mnt-ref:        LUCIFER-MNT
mnt-ref:        OPENFACTORY-NOC
mnt-ref:        ROUTE48-MNT
mnt-by:         LUCIFER-MNT
created:        2022-08-12T12:26:26Z
last-modified:  2023-03-23T23:15:28Z
source:         RIPE # Filtered

person:         Rudolf Maduro
address:        Van der Werfstraat 42
address:        2312 VX, Leiden
address:        The Netherlands
remarks:        GDPR: I give no consent to harvest my personal information
remarks:        Contact only via e-mail for details see https://as204406.net
phone:          +31852500809
nic-hdl:        LCFR3-RIPE
mnt-by:         LUCIFER-MNT
created:        2022-08-10T15:59:35Z
last-modified:  2025-06-07T22:23:41Z
source:         RIPE # Filtered

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

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.ripe.net",
  "as_blocks" : [ {
    "as_block" : "AS203940 - AS205662",
    "description" : [ "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" ],
    "date_created" : "2026-03-05",
    "date_updated" : "2026-03-05",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS204406",
    "as_name" : "RUDOLFMADURO-AS",
    "status" : "ASSIGNED",
    "import" : [ "from AS41051 accept ANY", "from AS212895 accept ANY", "from AS58057 accept ANY", "from AS209533 accept ANY", "from AS35708 accept ANY", "from AS49459 accept ANY", "from AS24381 accept ANY" ],
    "export" : [ "to AS41051 announce AS204406", "to AS212895 announce AS204406", "to AS58057 announce AS204406", "to AS209533 announce AS204406", "to AS35708 announce AS204406", "to AS49459 announce AS204406", "to AS24381 announce AS204406" ],
    "organization" : "ORG-LCFR2-RIPE",
    "sponsoring_organization" : "ORG-OG36-RIPE",
    "admin_contacts" : [ "LCFR3-RIPE" ],
    "tech_contacts" : [ "LCFR3-RIPE" ],
    "remarks" : [ "<--- This is a personal ASN of Rudolf Maduro - I am not a business just a hobbyist --->", "<--- I do use RPKI filtering however I only announce my own prefixes, so don't ask me for a downstream transit connection --->", "<--- Transit --->", "<--- IX route servers --->", "<--- 4ixp.net --->", "<--- ixp.cat --->", "<--- bgp.exchange --->", "<--- Peers --->" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "LUCIFER-MNT" ],
    "date_created" : "2022-08-23",
    "date_updated" : "2025-01-29",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-LCFR2-RIPE",
    "name" : "Rudolf Maduro",
    "type" : "OTHER",
    "description" : [ "LUCIFER IPv6 experimental network for educational purposes" ],
    "address" : [ "Van der Werfstraat 42", "2312 VX, Leiden", "The Netherlands" ],
    "street" : "Vx",
    "city" : "Leiden",
    "zip_code" : "2312",
    "country" : [ "NL" ],
    "abuse_contacts" : [ "ACRO49423-RIPE" ],
    "mnt_ref" : [ "LUCIFER-MNT", "OPENFACTORY-NOC", "ROUTE48-MNT" ],
    "mnt_by" : [ "LUCIFER-MNT" ],
    "date_created" : "2022-08-12",
    "date_updated" : "2023-03-23",
    "source" : "RIPE",
    "addressCountry" : "THE NETHERLANDS"
  },
  "administrative_contacts" : [ {
    "handle" : "LCFR3-RIPE",
    "name" : "Rudolf Maduro",
    "address" : [ "Van der Werfstraat 42", "2312 VX, Leiden", "The Netherlands" ],
    "street" : "Vx",
    "city" : "Leiden",
    "zip_code" : "2312",
    "country" : "THE NETHERLANDS",
    "phone" : [ "+31852500809" ],
    "remarks" : [ "GDPR: I give no consent to harvest my personal information", "Contact only via e-mail for details see https://as204406.net" ],
    "mnt_by" : [ "LUCIFER-MNT" ],
    "date_created" : "2022-08-10",
    "date_updated" : "2025-06-07",
    "source" : "RIPE",
    "addressCountry" : "THE NETHERLANDS"
  } ],
  "technical_contacts" : [ {
    "handle" : "LCFR3-RIPE",
    "name" : "Rudolf Maduro",
    "address" : [ "Van der Werfstraat 42", "2312 VX, Leiden", "The Netherlands" ],
    "street" : "Vx",
    "city" : "Leiden",
    "zip_code" : "2312",
    "country" : "THE NETHERLANDS",
    "phone" : [ "+31852500809" ],
    "remarks" : [ "GDPR: I give no consent to harvest my personal information", "Contact only via e-mail for details see https://as204406.net" ],
    "mnt_by" : [ "LUCIFER-MNT" ],
    "date_created" : "2022-08-10",
    "date_updated" : "2025-06-07",
    "source" : "RIPE",
    "addressCountry" : "THE NETHERLANDS"
  } ]
}

Peers

AS Number	Description	Country
AS209533	iFog GmbH	CH
AS58057	Securebit AG	CH
AS211509	Rudakov Ihor	UA
AS7721	Qin Cloud Networks	HK
AS49459	4b42 UG	DE
AS35708	4b42 UG	DE
AS212895	Johannes Ernst	DE
AS41051	FREETRANSIT Project	CH
AS24381	BGP.Exchange	AU

Upstreams

AS Number	Description	Country
AS209533	iFog GmbH	CH
AS211509	Rudakov Ihor	UA
AS41051	FREETRANSIT Project	CH