222.18.128.0/18

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Registry APNIC
ID CDR-CERNET

WHOIS Details

inetnum:        222.18.0.0 - 222.19.255.255
netname:        CDR-CERNET
descr:          China Education and Research Network
descr:          ChengDu Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
remarks:        confederation
remarks:        CDR-CERNET
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:26Z
source:         APNIC

irt:            IRT-CERNET-AP
address:        Network Research Center,
address:        Main Bldg, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
fax-no:         +86-10-62785933
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
remarks:        [email protected] was validated on 2025-08-15
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-11-18T00:26:28Z
source:         APNIC

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Research Center,
address:        Main Bldg, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
e-mail:         [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        [email protected] was validated on 2025-08-15
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-15T09:38:28Z
source:         APNIC

role:           CERNET Helpdesk
address:        CERNET Center
address:        Beijing 100084, China
country:        CN
phone:          +86-10-6278-4049
fax-no:         +86-10-6278-5933
e-mail:         [email protected]
remarks:        [email protected]
admin-c:        XL1-CN
tech-c:         SZ2-AP
nic-hdl:        CER-AP
mnt-by:         MAINT-CERNET-AP
last-modified:  2020-09-03T09:14:12Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 222.18.0.0/16

No nearby ranges found.

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity

Pingable IPs

372 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
222.18.156.149 AS4538 China Education and Research Network Center 4.89ms from Chengdu, CN
222.18.146.129 AS4538 China Education and Research Network Center 5.91ms from Chengdu, CN
222.18.137.68 AS4538 China Education and Research Network Center 5.27ms from Chengdu, CN
222.18.164.65 AS4538 China Education and Research Network Center 4.63ms from Chengdu, CN
222.18.158.196 AS4538 China Education and Research Network Center 4.43ms from Chengdu, CN
222.18.172.1 AS4538 China Education and Research Network Center 4.54ms from Chengdu, CN
222.18.147.65 AS4538 China Education and Research Network Center 5.94ms from Chengdu, CN
222.18.129.166 AS4538 China Education and Research Network Center 4.71ms from Chengdu, CN
222.18.167.193 AS4538 China Education and Research Network Center 5.80ms from Chengdu, CN
222.18.189.14 AS4538 China Education and Research Network Center 4.34ms from Chengdu, CN
222.18.157.65 AS4538 China Education and Research Network Center 5.16ms from Chengdu, CN
222.18.131.1 AS4538 China Education and Research Network Center 4.67ms from Chengdu, CN
222.18.191.3 AS4538 China Education and Research Network Center 5.11ms from Chengdu, CN
222.18.161.129 AS4538 China Education and Research Network Center 5.28ms from Chengdu, CN
222.18.171.1 AS4538 China Education and Research Network Center 22.58ms from Wuhan, CN
222.18.159.193 AS4538 China Education and Research Network Center 5.59ms from Chengdu, CN
222.18.185.227 AS4538 China Education and Research Network Center 21.57ms from Chengdu, CN
222.18.145.65 AS4538 China Education and Research Network Center 5.81ms from Chengdu, CN
222.18.128.1 AS4538 China Education and Research Network Center 6.37ms from Chengdu, CN
222.18.162.129 AS4538 China Education and Research Network Center 4.69ms from Chengdu, CN
222.18.130.218 AS4538 China Education and Research Network Center 5.51ms from Chengdu, CN
222.18.188.131 AS4538 China Education and Research Network Center 5.25ms from Chengdu, CN
222.18.165.129 AS4538 China Education and Research Network Center 4.60ms from Chengdu, CN
222.18.160.1 AS4538 China Education and Research Network Center 5.21ms from Chengdu, CN
222.18.163.65 AS4538 China Education and Research Network Center 4.63ms from Chengdu, CN

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
23.1.11.66 AS16625 Akamai Technologies, Inc. 0.17ms from Ashburn, US
125.27.167.162 AS23969 TOT Public Company Limited 2.50ms from Bangkok, TH
20.209.90.2 AS8075 Microsoft Corporation 0.37ms from Boydton, US
35.187.64.210 AS396982 Google LLC 0.12ms from Brussels, BE
177.202.112.210 AS8167 V tal 3.64ms from Curitiba, BR
72.174.84.66 AS33588 Charter Communications LLC 6.32ms from Denver, US
4.225.77.210 AS8075 Microsoft Corporation 0.26ms from Gaevle, SE
183.255.8.130 AS9808 China Mobile Communications Group Co., Ltd. 15.15ms from Hong Kong, HK
36.72.23.130 AS7713 PT Telekomunikasi Indonesia 1.97ms from Jakarta, ID
69.84.201.2 AS396982 Google LLC 0.50ms from Johannesburg, ZA
37.66.125.18 AS15557 Societe Francaise Du Radiotelephone - SFR SA 4.21ms from Lausanne, CH
13.40.152.226 AS16509 Amazon.com, Inc. 0.18ms from London, GB
86.143.242.210 AS2856 British Telecommunications PLC 4.75ms from London, GB
172.118.156.50 AS20001 Charter Communications Inc 5.57ms from Los Angeles, US
189.222.201.114 AS8151 UNINET 5.32ms from Los Angeles, US
92.137.164.98 AS3215 Orange S.A. 9.89ms from Marseille, FR
47.200.31.98 AS5650 Frontier Communications of America, Inc. 5.64ms from Miami, US
121.227.96.2 AS4134 CHINANET-BACKBONE 4.21ms from Nanjing, CN
125.110.13.98 AS4134 CHINANET-BACKBONE 9.95ms from Ningbo, CN
126.91.161.178 AS17676 SoftBank Corp. 4.04ms from Osaka, JP
177.241.246.2 AS13999 Mega Cable, S.A. de C.V. 11.72ms from Santiago de Querétaro, MX
106.252.95.98 AS3786 LG DACOM Corporation 1.64ms from Seoul, KR
34.64.174.194 AS396982 Google LLC 0.09ms from Seoul, KR
59.26.213.178 AS4766 Korea Telecom 3.80ms from Seoul, KR
221.160.132.98 AS4766 Korea Telecom 3.12ms from Seoul, KR

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 -f7 -m19 222.18.139.214
traceroute to 222.18.139.214 (222.18.139.214): 19 hops max, 52 byte packets
8 *
9 *
10 *
11 *
12 [AS4538] 101.4.115.122 40.576 ms
13 *
14 *
15 *
16 [AS4538] 202.115.255.94 40.059 ms
17 *
18 *
19 *
Measurement taken from IPinfo ProbeNet in Guangzhou, CN
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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