Registration
IPv4 Prefixes
3 prefixes · 1,024 addresses · 1 top-level Routing data as of 2026-10-08 16:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 45.148.172.0/22 | 45.148.172.0 – 45.148.175.255 | 1,024 |
| 45.148.172.0/24 | 45.148.172.0 – 45.148.172.255 | 256 |
| 45.148.173.0/24 | 45.148.173.0 – 45.148.173.255 | 256 |
IPv6 Prefixes
18 prefixes · 131,083 × /48 · 7 top-level Routing data as of 2026-10-08 16:00 UTC
BGP Neighbours
6 unique neighbours · 6 upstream/peer · 0 downstream. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries. Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers. Upstream & peer side (6)
AS Name AS paths IPv4 sightings IPv6 sightings AS57578 MISAKA-CIS-AS Misaka Network, Inc. 825 61 1,199 AS20473 AS-VULTR - The Constant Company, LLC 712 209 1,325 AS34549 MEER-AS meerfarbig GmbH & Co. KG 433 694 1,014 AS6939 HURRICANE - Hurricane Electric LLC 244 0 702 AS142616 MNI-AS-AP - Misaka Network, Inc. 20 42 27 AS57695 MISAKA Misaka Network, Inc. 16 42 36
Raw RDAP Response
{
"handle": "AS51044",
"startAutnum": 51044,
"endAutnum": 51044,
"name": "RHE",
"status": [
"active"
],
"entities": [
{
"handle": "mnt-jp-rhe-1",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/51044",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/mnt-jp-rhe-1"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "ORG-KY31-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Kazuki Yamaguchi"
],
[
"kind",
{},
"text",
"org"
],
[
"adr",
{
"label": "Kodaira-shi Jousuiminami-cho 2-17-20\n187-0021\nTokyo\nJAPAN"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+81 90 9679 1284"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/51044",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/ORG-KY31-RIPE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "RHE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"RHE-NET Contact"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "Kodaira-shi Jousuiminami-cho 2-17-20\n187-0021\nTokyo\nJAPAN"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"org",
{},
"text",
"ORG-KY31-RIPE"
]
]
],
"roles": [
"administrative",
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/51044",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/RHE"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "RIPE-NCC-END-MNT",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/51044",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/RIPE-NCC-END-MNT"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
},
{
"handle": "AR55131-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Abuse-C Role"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "Kodaira-shi Jousuiminami-cho 2-17-20\n187-0021\nTokyo\nJAPAN"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{
"type": "abuse"
},
"text",
"[email protected]"
]
]
],
"roles": [
"abuse"
],
"entities": [
{
"handle": "mnt-jp-rhe-1",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/51044",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/mnt-jp-rhe-1"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"objectClassName": "entity"
}
],
"objectClassName": "entity"
}
],
"remarks": [
{
"description": [
"RHE-NET",
"--------------------------------------------------------",
"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"
]
}
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/51044",
"rel": "rdap-up",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS51044",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/51044",
"rel": "rdap-up rdap-active",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS51044?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/51044",
"rel": "rdap-down",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-down/AS51044",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/51044",
"rel": "rdap-top",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS51044",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/51044",
"rel": "rdap-top rdap-active",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS51044?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/51044",
"rel": "rdap-bottom",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-bottom/AS51044",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/51044",
"rel": "self",
"href": "https://rdap.db.ripe.net/autnum/51044",
"type": "application/rdap+json"
},
{
"value": "http://www.ripe.net/data-tools/support/documentation/terms",
"rel": "copyright",
"href": "http://www.ripe.net/data-tools/support/documentation/terms"
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2019-09-03T11:05:50Z"
},
{
"eventAction": "last changed",
"eventDate": "2023-12-29T18:09:58Z"
}
],
"rdapConformance": [
"nro_rdap_profile_asn_flat_0",
"rirSearch1",
"autnums",
"cidr0",
"rdap_level_0",
"nro_rdap_profile_0",
"redacted"
],
"notices": [
{
"title": "Filtered",
"description": [
"This output has been filtered."
]
},
{
"title": "Whois Inaccuracy Reporting",
"description": [
"If you see inaccuracies in the results, please visit:"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/51044",
"rel": "inaccuracy-report",
"href": "https://www.ripe.net/contact-form?topic=ripe_dbm&show_form=true",
"type": "text/html"
}
]
},
{
"title": "Source",
"description": [
"Objects returned came from source",
"RIPE"
]
},
{
"title": "Terms and Conditions",
"description": [
"This is the RIPE Database query service. The objects are in RDAP format."
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/51044",
"rel": "terms-of-service",
"href": "http://www.ripe.net/db/support/db-terms-conditions.pdf",
"type": "application/pdf"
}
]
}
],
"port43": "whois.ripe.net",
"objectClassName": "autnum",
"redacted": [
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='ORG-KY31-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='RHE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='AR55131-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
}
]
} Contact details of private individuals are redacted.