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AS37900
MATSURI - NTT DOCOMO BUSINESS, Inc. Announcing routesAS nameMATSURI
CountryJP
Registry (RIR)APNIC
HandleAS37900
RangeAS37900
Registered—
Last changed02 Feb 2026
4IPv4 prefixes
3IPv6 prefixes
4Upstreams
0Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS2516 | KDDI - KDDI CORPORATION | 248 |
| AS2914 | NTT-DATA-2914 - NTT America, Inc. | 181 |
| AS4713 | OCN - NTT DOCOMO BUSINESS,Inc. | 181 |
| AS17676 | GIGAINFRA - SoftBank Corp. | 144 |
Downstreams
None seen.
IPv4 prefixes (4)
IPv6 prefixes (3)
RPKI-validate all prefixes of AS37900
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| technical | JP00036952 | |||
| technical, administrative | Japan Network Information Center | JNIC1-AP | [email protected], +81-3-5297-2311, +81-3-5297-2312 | Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda, Chiyoda-ku, Tokyo 101-0047, Japan |
| technical, administrative | JP00071138 |
Raw registry response
{
"rdapConformance": [
"nro_rdap_profile_0",
"nro_rdap_profile_asn_hierarchical_0",
"cidr0",
"rdap_level_0"
],
"notices": [
{
"title": "Source",
"description": [
"Objects returned came from source",
"JPNIC"
]
},
{
"title": "Terms and Conditions",
"description": [
"This is the APNIC WHOIS Database query service. The objects are in RDAP format.",
"This information has been partially mirrored by APNIC from JPNIC. To obtain more specific information, please use the JPNIC WHOIS Gateway at http://www.nic.ad.jp/en/db/whois/en-gateway.html or whois.nic.ad.jp for WHOIS client. (The WHOIS client defaults to Japanese output, use the /e switch for English output)"
],
"links": [
{
"value": "https://jpnic.rdap.apnic.net/autnum/37900",
"rel": "terms-of-service",
"href": "http://www.apnic.net/db/dbcopyright.html",
"type": "text/html"
}
]
},
{
"title": "Whois Inaccuracy Reporting",
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"value": "https://jpnic.rdap.apnic.net/autnum/37900",
"rel": "inaccuracy-report",
"href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
"type": "text/html"
}
]
}
],
"country": "JP",
"name": "MATSURI",
"status": [
"active"
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-02-02T16:51:37Z"
}
],
"links": [
{
"value": "https://jpnic.rdap.apnic.net/autnum/37900",
"rel": "self",
"href": "https://jpnic.rdap.apnic.net/autnum/37900",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"NTT DOCOMO BUSINESS, Inc."
],
"title": "description"
}
],
"entities": [
{
"roles": [
"technical"
],
"links": [
{
"value": "https://jpnic.rdap.apnic.net/autnum/37900",
"rel": "related",
"href": "http://whois.nic.ad.jp/cgi-bin/whois_gw?key=JP00036952/e",
"type": "text/html",
"hreflang": "en"
},
{
"value": "https://jpnic.rdap.apnic.net/autnum/37900",
"rel": "related",
"href": "http://whois.nic.ad.jp/cgi-bin/whois_gw?key=JP00036952",
"type": "text/html",
"hreflang": "jp"
}
],
"handle": "JP00036952",
"objectClassName": "entity"
},
{
"roles": [
"technical",
"administrative"
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2022-01-05T03:04:02Z"
}
],
"links": [
{
"value": "https://jpnic.rdap.apnic.net/autnum/37900",
"rel": "self",
"href": "https://jpnic.rdap.apnic.net/entity/JNIC1-AP",
"type": "application/rdap+json"
}
],
"handle": "JNIC1-AP",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Japan Network Information Center"
],
[
"kind",
[],
"text",
"group"
],
[
"adr",
{
"label": "Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda\nChiyoda-ku, Tokyo 101-0047, Japan"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+81-3-5297-2311"
],
[
"tel",
{
"type": "fax"
},
"text",
"+81-3-5297-2312"
],
[
"email",
[],
"text",
"[email protected]"
]
]
]
},
{
"roles": [
"technical",
"administrative"
],
"links": [
{
"value": "https://jpnic.rdap.apnic.net/autnum/37900",
"rel": "related",
"href": "http://whois.nic.ad.jp/cgi-bin/whois_gw?key=JP00071138/e",
"type": "text/html",
"hreflang": "en"
},
{
"value": "https://jpnic.rdap.apnic.net/autnum/37900",
"rel": "related",
"href": "http://whois.nic.ad.jp/cgi-bin/whois_gw?key=JP00071138",
"type": "text/html",
"hreflang": "jp"
}
],
"handle": "JP00071138",
"objectClassName": "entity"
}
],
"handle": "AS37900",
"startAutnum": 37900,
"endAutnum": 37900,
"objectClassName": "autnum",
"port43": "whois.apnic.net"
}Results come from public internet registries and live global routing data. Results are cached for up to an hour. Lookups are logged with your IP address to prevent abuse — see our Privacy Policy.