ASN AS51044 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS51044?

AS51044 is listed under RHE NET.

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.

AS51044 RHE NET | IPGeolocation.io

ASN Lookup Tool

RHE NET rhe.jp

JP 21 Routes

AS Data

AS51044

AS51044 – RHE NET

AS Number	51044
AS Name	RHE
Organization	RHE NET(org-ky31-ripe)
Country	JP
Website	rhe.jp
Number of IPv4 Routes	3
Number of IPv6 Routes	18
ASN type	INDIVIDUAL
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2019-09-03

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Use ASN data for AS51044 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2a0f:600:60c::/47	AS51044	RHE NET	Kazuki Yamaguchi	~2×10²⁴
2a0f:600:608::/48	AS51044	RHE NET	Kazuki Yamaguchi	~1×10²⁴
2a0f:600:60a::/47	AS51044	RHE NET	Kazuki Yamaguchi	~2×10²⁴
2a0f:600:604::/46	AS51044	RHE NET	Kazuki Yamaguchi	~5×10²⁴
2a0f:600:605::/48	AS51044	RHE NET	Kazuki Yamaguchi	~1×10²⁴
2a0f:600:60c::/48	AS51044	RHE NET	Kazuki Yamaguchi	~1×10²⁴
2a0f:600:608::/47	AS51044	RHE NET	Kazuki Yamaguchi	~2×10²⁴
2a0f:600:604::/47	AS51044	RHE NET	Kazuki Yamaguchi	~2×10²⁴
2a0f:601::/32	AS51044	RHE NET	Kazuki Yamaguchi	~79×10²⁷
2a0f:600:60a::/48	AS51044	RHE NET	Kazuki Yamaguchi	~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 'AS50893 - AS51311'

as-block:       AS50893 - AS51311
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:        2024-12-10T14:54:30Z
last-modified:  2024-12-10T14:54:30Z
source:         RIPE

% Information related to 'AS51044'

% Abuse contact for 'AS51044' is 'abuse@rhe.jp'

aut-num:        AS51044
as-name:        RHE
descr:          RHE-NET
org:            ORG-KY31-RIPE
remarks:        --------------------------------------------------------
remarks:        PeeringDB: https://www.peeringdb.com/asn/51044
remarks:        Looking Glass: https://as51044.net/tools/
remarks:        --------------------------------------------------------
remarks:        -- The Constant Company, LLC (Vultr)
mp-import:      afi any.unicast from AS20473 accept ANY
mp-export:      afi any.unicast to AS20473 announce AS51044:AS-RHE
remarks:
remarks:        -- Misaka Network, Inc.
mp-import:      afi any.unicast from AS57578 accept ANY
mp-export:      afi any.unicast to AS57578 announce AS51044:AS-RHE
mp-import:      afi any.unicast from AS57695 accept ANY
mp-export:      afi any.unicast to AS57695 announce AS51044:AS-RHE
remarks:
remarks:        -- meerfarbig GmbH & Co. KG
mp-import:      afi any.unicast from AS34549 accept ANY
mp-export:      afi any.unicast to AS34549 announce AS51044:AS-RHE
remarks:
remarks:        -- Hurricane Electric LLC
mp-import:      afi ipv6.unicast from AS6939 accept ANY
mp-export:      afi ipv6.unicast to AS6939 announce AS51044:AS-RHE
remarks:        --------------------------------------------------------
admin-c:        RHE
tech-c:         RHE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         mnt-jp-rhe-1
created:        2019-09-03T11:05:50Z
last-modified:  2023-12-29T18:09:58Z
source:         RIPE

organisation:   ORG-KY31-RIPE
org-name:       Kazuki Yamaguchi
country:        JP
org-type:       LIR
address:        Kodaira-shi Jousuiminami-cho 2-17-20
address:        187-0021
address:        Tokyo
address:        JAPAN
phone:          +81 90 9679 1284
admin-c:        KY686-RIPE
tech-c:         KY686-RIPE
abuse-c:        AR55131-RIPE
mnt-ref:        mnt-jp-rhe-1
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         mnt-jp-rhe-1
created:        2019-08-29T07:56:05Z
last-modified:  2020-12-16T13:02:14Z
source:         RIPE # Filtered

role:           RHE-NET Contact
address:        Kodaira-shi Jousuiminami-cho 2-17-20
address:        187-0021
address:        Tokyo
address:        JAPAN
org:            ORG-KY31-RIPE
nic-hdl:        RHE
mnt-by:         mnt-jp-rhe-1
created:        2019-09-29T13:51:32Z
last-modified:  2019-09-29T13:55:38Z
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" : "AS50893 - AS51311",
    "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" : "2024-12-10",
    "date_updated" : "2024-12-10",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS51044",
    "as_name" : "RHE",
    "description" : [ "RHE-NET" ],
    "status" : "ASSIGNED",
    "mp_import" : [ "afi any.unicast from AS20473 accept ANY", "afi any.unicast from AS57578 accept ANY", "afi any.unicast from AS57695 accept ANY", "afi any.unicast from AS34549 accept ANY", "afi ipv6.unicast from AS6939 accept ANY" ],
    "mp_export" : [ "afi any.unicast to AS20473 announce AS51044:AS-RHE", "afi any.unicast to AS57578 announce AS51044:AS-RHE", "afi any.unicast to AS57695 announce AS51044:AS-RHE", "afi any.unicast to AS34549 announce AS51044:AS-RHE", "afi ipv6.unicast to AS6939 announce AS51044:AS-RHE" ],
    "organization" : "ORG-KY31-RIPE",
    "admin_contacts" : [ "RHE" ],
    "tech_contacts" : [ "RHE" ],
    "remarks" : [ "--------------------------------------------------------", "PeeringDB: https://www.peeringdb.com/asn/51044", "Looking Glass: https://as51044.net/tools/", "--------------------------------------------------------", "-- The Constant Company, LLC (Vultr)", "-- Misaka Network, Inc.", "-- meerfarbig GmbH & Co. KG", "-- Hurricane Electric LLC", "--------------------------------------------------------" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "mnt-jp-rhe-1" ],
    "date_created" : "2019-09-03",
    "date_updated" : "2023-12-29",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-KY31-RIPE",
    "name" : "Kazuki Yamaguchi",
    "type" : "LIR",
    "address" : [ "Kodaira-shi Jousuiminami-cho 2-17-20", "187-0021", "Tokyo", "JAPAN" ],
    "state" : "TOKYO",
    "zip_code" : "187-0021",
    "country" : [ "JP" ],
    "phone" : [ "+81 90 9679 1284" ],
    "admin_contacts" : [ "KY686-RIPE" ],
    "tech_contacts" : [ "KY686-RIPE" ],
    "abuse_contacts" : [ "AR55131-RIPE" ],
    "mnt_ref" : [ "mnt-jp-rhe-1" ],
    "mnt_by" : [ "RIPE-NCC-HM-MNT", "mnt-jp-rhe-1" ],
    "date_created" : "2019-08-29",
    "date_updated" : "2020-12-16",
    "source" : "RIPE",
    "addressCountry" : "JAPAN"
  },
  "administrative_contacts" : [ {
    "handle" : "RHE",
    "name" : "RHE-NET Contact",
    "address" : [ "Kodaira-shi Jousuiminami-cho 2-17-20", "187-0021", "Tokyo", "JAPAN" ],
    "state" : "TOKYO",
    "zip_code" : "187-0021",
    "country" : "JAPAN",
    "organizations" : [ "ORG-KY31-RIPE" ],
    "mnt_by" : [ "mnt-jp-rhe-1" ],
    "date_created" : "2019-09-29",
    "date_updated" : "2019-09-29",
    "source" : "RIPE",
    "addressCountry" : "JAPAN"
  } ],
  "technical_contacts" : [ {
    "handle" : "RHE",
    "name" : "RHE-NET Contact",
    "address" : [ "Kodaira-shi Jousuiminami-cho 2-17-20", "187-0021", "Tokyo", "JAPAN" ],
    "state" : "TOKYO",
    "zip_code" : "187-0021",
    "country" : "JAPAN",
    "organizations" : [ "ORG-KY31-RIPE" ],
    "mnt_by" : [ "mnt-jp-rhe-1" ],
    "date_created" : "2019-09-29",
    "date_updated" : "2019-09-29",
    "source" : "RIPE",
    "addressCountry" : "JAPAN"
  } ]
}

Peers

AS Number	Description	Country
AS142616	Misaka Network, Inc.	JP
AS57695	Misaka Network, Inc.	US
AS6939	Hurricane Electric LLC	US
AS57578	Misaka Network, Inc.	US
AS20473	The Constant Company, LLC	US
AS142616	Misaka Network, Inc.	US
AS34549	meerfarbig GmbH & Co. KG	DE

Upstreams

AS Number	Description	Country
AS142616	Misaka Network, Inc.	JP
AS57695	Misaka Network, Inc.	US
AS6939	Hurricane Electric LLC	US
AS57578	Misaka Network, Inc.	US
AS20473	The Constant Company, LLC	US
AS34549	meerfarbig GmbH & Co. KG	DE