IP range 203.137.0.0/16
203.137.0.0/16 contains 65,536 addresses announced by IDCF IDC Frontier Inc. and located in Japan. First and last address, owner network and neighbouring ranges.
At a glance
- Announced by
- IDCF IDC Frontier Inc. AS4694
- Country
- Japan
- CIDR
- 203.137.0.0/16
- Subnet mask
- 255.255.0.0
Sample lookup
Sample address in this range
203.137.0.1
- Location
- 🇯🇵 Chiyoda City, Tokyo, Japan
- ISP · ASN
- IDCF IDC Frontier Inc. AS4694
- Type
- Unclassified network
- Hostname
- —
- Time zone
- Asia/Tokyo 12:24
- Coordinates
- 35.6916, 139.7680
- Prefix
- 203.137.0.0/16
- IP version
- IPv4
- Region
- Tokyo
Chiyoda City, Tokyo, JapanOpenStreetMap →
Approximate: city-level geolocation, radius about 25 km.
- ASN
- AS4694
- Network name
- IDCF IDC Frontier Inc.
- Prefix
- 203.137.0.0/16
- Network type
- Unclassified
- 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 name1.0.137.203.in-addr.arpa
- Decimal
- 3414753281
- Hex
- 0xCB890001
- Binary
- 11001011.10001001.00000000.00000001
- Octal
- 0313.0211.00.01
- Arpa
- 1.0.137.203.in-addr.arpa
- Mapped
- ::ffff:203.137.0.1
JSON
{
"ip": "203.137.0.1",
"version": 4,
"classification": "unknown",
"flags": [],
"geo": {
"country_code": "JP",
"country": "Japan",
"region": "Tokyo",
"city": "Chiyoda City",
"lat": 35.6916,
"lon": 139.768,
"timezone": "Asia/Tokyo"
},
"asn": {
"asn": 4694,
"name": "IDCF IDC Frontier Inc.",
"prefix": "203.137.0.0/16"
},
"rdns": null
}