Organization
HEARTNET
Location
Niihama
Ehime, Japan (JP)
Hostname
—
Geolocation
Japan (JP) Japan
- Country
- Japan (JP)
- Region
- Ehime
- City
- Niihama
- Continent
- Asia
- Coordinates
- 33.9474, 133.292 View on map ↗
Network Information
IP Range 203.174.88.0 – 203.174.89.255 CIDR 203.174.88.0/23 Network Name HEARTNET Handle 203.174.88.0 - 203.174.89.255 Country Japan (JP) Registry APNIC Description Heart Network Co.,LTD Last Updated Sep 06, 2006 Status
active
ASN & Routing
Origin AS AS24290 AS Name HEARTNET - Heart Network Co.,LTD, JP Announced Prefix 203.174.88.0/21 AS Registry APNIC Prefix Country Japan (JP) Allocated 2006-04-27 RPKI Origin Not found (no ROA covers this prefix)
Reverse DNS
No PTR record is published for this address.
Abuse Contact
Raw RDAP Response
{
"rdapConformance": [
"nro_rdap_profile_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/ip/203.174.88.0",
"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/ip/203.174.88.0",
"rel": "inaccuracy-report",
"href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
"type": "text/html"
}
]
}
],
"country": "JP",
"name": "HEARTNET",
"status": [
"active"
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2006-09-06T23:23:10Z"
}
],
"links": [
{
"value": "https://jpnic.rdap.apnic.net/ip/203.174.88.0",
"rel": "self",
"href": "https://jpnic.rdap.apnic.net/ip/203.174.88.0/23",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"Heart Network Co.,LTD"
],
"title": "description"
}
],
"entities": [
{
"roles": [
"technical",
"administrative"
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2022-01-05T03:04:02Z"
}
],
"links": [
{
"value": "https://jpnic.rdap.apnic.net/ip/203.174.88.0",
"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/ip/203.174.88.0",
"rel": "related",
"href": "http://whois.nic.ad.jp/cgi-bin/whois_gw?key=KK4494JP/e",
"type": "text/html",
"hreflang": "en"
},
{
"value": "https://jpnic.rdap.apnic.net/ip/203.174.88.0",
"rel": "related",
"href": "http://whois.nic.ad.jp/cgi-bin/whois_gw?key=KK4494JP",
"type": "text/html",
"hreflang": "jp"
}
],
"handle": "KK4494JP",
"objectClassName": "entity"
},
{
"roles": [
"abuse"
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-09-04T01:00:00Z"
}
],
"links": [
{
"value": "https://jpnic.rdap.apnic.net/ip/203.174.88.0",
"rel": "self",
"href": "https://jpnic.rdap.apnic.net/entity/IRT-JPNIC-JP",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"[email protected] was validated on 2024-11-27"
],
"title": "remarks"
}
],
"handle": "IRT-JPNIC-JP",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-JPNIC-JP"
],
[
"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]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
}
],
"handle": "203.174.88.0 - 203.174.89.255",
"type": null,
"startAddress": "203.174.88.0",
"endAddress": "203.174.89.255",
"objectClassName": "ip network",
"ipVersion": "v4",
"cidr0_cidrs": [
{
"v4prefix": "203.174.88.0",
"length": 23
}
],
"port43": "whois.apnic.net"
} Contact details of private individuals are redacted.