IP range 133.23.0.0/16
133.23.0.0/16 contains 65,536 addresses announced by SINET-AS Research Organization of Information and Systems, National Institute of Informatics and located in Japan. First and last address, owner network and neighbouring ranges.
At a glance
- Announced by
- SINET-AS Research Organization of Information and Systems, National Institute of Informatics AS2907
- Country
- Japan
- CIDR
- 133.23.0.0/16
- Subnet mask
- 255.255.0.0
Sample lookup
Sample address in this range
133.23.0.1
- Location
- 🇯🇵 Kofu, Yamanashi, Japan
- ISP · ASN
- SINET-AS Research Organization of Information and Systems, National Institute of Informatics AS2907
- Type
- Residential
- Hostname
- —
- Time zone
- Asia/Tokyo 15:28
- Coordinates
- 35.6779, 138.5740
- Prefix
- 133.23.0.0/16
- IP version
- IPv4
- Region
- Yamanashi
Kofu, Yamanashi, JapanOpenStreetMap →
Approximate: city-level geolocation, radius about 25 km.
- ASN
- AS2907
- Network name
- SINET-AS Research Organization of Information and Systems, National Institute of Informatics
- Prefix
- 133.23.0.0/16
- Network type
- Consumer ISP
- Datacenter / hosting rangeNo
- Tor exit nodeNo
- Known VPN / proxy providerNo
- Spamhaus DROPNo
- BlacklistsCheck →
- PTR recordnoneThe PTR record the address owner published for it.
- Forward-confirmedVerify →Forward-confirmed: the hostname resolves back to this address.
- Reverse zone name1.0.23.133.in-addr.arpa
- Decimal
- 2232877057
- Hex
- 0x85170001
- Binary
- 10000101.00010111.00000000.00000001
- Octal
- 0205.027.00.01
- Arpa
- 1.0.23.133.in-addr.arpa
- Mapped
- ::ffff:133.23.0.1
JSON
{
"ip": "133.23.0.1",
"version": 4,
"classification": "residential",
"flags": [],
"geo": {
"country_code": "JP",
"country": "Japan",
"region": "Yamanashi",
"city": "Kofu",
"lat": 35.6779,
"lon": 138.574,
"timezone": "Asia/Tokyo"
},
"asn": {
"asn": 2907,
"name": "SINET-AS Research Organization of Information and Systems, National Institute of Informatics",
"prefix": "133.23.0.0/16"
},
"rdns": null
}