IP range 1.51.4.0/22
1.51.4.0/22 contains 1,024 addresses announced by ERX-CERNET-BKB China Education and Research Network Center and located in China. First and last address, owner network and neighbouring ranges.
At a glance
- Announced by
- ERX-CERNET-BKB China Education and Research Network Center AS4538
- Country
- China
- CIDR
- 1.51.4.0/22
- Subnet mask
- 255.255.252.0
Sample lookup
Sample address in this range
1.51.4.1
- Location
- 🇨🇳 Nanjing, Jiangsu, China
- ISP · ASN
- ERX-CERNET-BKB China Education and Research Network Center AS4538
- Type
- Education
- Hostname
- —
- Time zone
- Asia/Shanghai 17:19
- Coordinates
- 32.0584, 118.7960
- Prefix
- 1.51.4.0/22
- IP version
- IPv4
- Region
- Jiangsu
Nanjing, Jiangsu, ChinaOpenStreetMap →
Approximate: city-level geolocation, radius about 25 km.
- ASN
- AS4538
- Network name
- ERX-CERNET-BKB China Education and Research Network Center
- Prefix
- 1.51.4.0/22
- Network type
- Education
- 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 name1.4.51.1.in-addr.arpa
- Decimal
- 20120577
- Hex
- 0x01330401
- Binary
- 00000001.00110011.00000100.00000001
- Octal
- 01.063.04.01
- Arpa
- 1.4.51.1.in-addr.arpa
- Mapped
- ::ffff:1.51.4.1
JSON
{
"ip": "1.51.4.1",
"version": 4,
"classification": "education",
"flags": [],
"geo": {
"country_code": "CN",
"country": "China",
"region": "Jiangsu",
"city": "Nanjing",
"lat": 32.0584,
"lon": 118.796,
"timezone": "Asia/Shanghai"
},
"asn": {
"asn": 4538,
"name": "ERX-CERNET-BKB China Education and Research Network Center",
"prefix": "1.51.4.0/22"
},
"rdns": null
}