219.230.32.0/20

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	219.224.0.0/13
Registry	APNIC
ID	CERNET-CN

WHOIS Details

inetnum:        219.230.0.0 - 219.231.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Nanjing Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
remarks:        confederation
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:27Z
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:         abuse@cernet.edu.cn
abuse-mailbox:  abuse@cernet.edu.cn
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
remarks:        abuse@cernet.edu.cn was validated on 2025-01-22
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-01-22T13:47:43Z
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:         abuse@cernet.edu.cn
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        abuse@cernet.edu.cn was validated on 2025-01-22
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-01-22T16:25:45Z
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:         helpdesk@cernet.edu.cn
remarks:        abuse@cernet.edu.cn
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

Overlapping Ranges

BGP prefixes that contain 219.230.32.0/20

Range	ASN	Company	Num of IPs
219.224.0.0/13	AS4538	China Education and Research Network	524,288

Nearby Ranges

BGP prefixes that overlap with 219.230.0.0/16

Range	ASN	Company	Num of IPs
219.224.0.0/13	AS4538	China Education and Research Network	524,288
219.230.64.0/18	AS4538	China Education and Research Network	16,384
219.230.192.0/18	AS4538	China Education and Research Network	16,384
219.230.128.0/19	AS4538	China Education and Research Network	8,192
219.230.160.0/19	AS4538	China Education and Research Network	8,192
219.230.48.0/20	AS4538	China Education and Research Network	4,096
219.230.176.0/20	AS4538	China Education and Research Network	4,096
219.230.144.0/20	AS4538	China Education and Research Network	4,096
219.230.144.0/20	AS24361	China Education and Research Network	4,096
219.230.16.0/20	AS4538	China Education and Research Network	4,096
219.230.51.0/24	AS4538	China Education and Research Network	256

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
219.230.37.132	cztgi.edu.cn	1

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

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Pingable IPs

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

IP Address	ASN	Details
219.230.35.204	AS4538 China Education and Research Network Center	14.02ms from Shanghai, CN
219.230.37.132	AS4538 China Education and Research Network Center	9.48ms from Shanghai, CN
219.230.34.198	AS4538 China Education and Research Network Center	10.14ms from Shanghai, CN
219.230.46.2	AS4538 China Education and Research Network Center	11.15ms from Shanghai, 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
41.104.157.4	AS36947 Telecom Algeria	13.22ms from Algiers, DZ
84.35.85.132	AS21221 Infopact Netwerkdiensten B.V.	0.19ms from Amsterdam, NL
69.141.208.68	AS7922 Comcast Cable Communications, LLC	8.20ms from Ashburn, US
66.56.60.164	AS7922 Comcast Cable Communications, LLC	4.13ms from Atlanta, US
120.133.76.132	AS23724 IDC, China Telecommunications Corporation	2.54ms from Beijing, CN
15.160.108.148	AS16509 Amazon.com, Inc.	0.14ms from Milan, IT
41.10.41.84	AS36994 Vodacom	2.88ms from Cape Town, ZA
194.105.41.116	AS203437 CompuGroup Medical SE & Co. KGaA	0.61ms from Frankfurt am Main, DE
186.5.85.180	AS27947 Telconet S.A	6.57ms from Quito, EC
121.230.177.68	AS4134 CHINANET-BACKBONE	8.00ms from Shanghai, CN
34.98.93.116	AS396982 Google LLC	0.08ms from Melbourne, AU
3.209.12.52	AS14618 Amazon.com, Inc.	0.34ms from Reston, US
186.247.8.180	AS7738 V tal	8.66ms from Rio de Janeiro, BR
167.103.64.132	AS53813 ZSCALER, INC.	0.53ms from Singapore, SG
108.128.210.100	AS16509 Amazon.com, Inc.	0.15ms from Dublin, IE
131.216.120.4	AS3851 Nevada System of Higher Education	6.64ms from Los Angeles, US
60.107.25.84	AS17676 SoftBank Corp.	3.67ms from Osaka, JP
82.157.159.228	AS45090 Shenzhen Tencent Computer Systems Company Limited	2.07ms from Beijing, CN
147.229.130.20	AS197451 Brno University of Technology	0.47ms from Brno, CZ
84.236.74.212	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	0.70ms from Budapest, HU
129.232.142.228	AS37153 Xneelo (Pty) Ltd	0.14ms from Johannesburg, ZA
23.34.29.180	AS20940 Akamai International B.V.	0.93ms from New York City, US
67.205.52.132	AS26347 New Dream Network, LLC	0.42ms from Portland, US
13.214.247.52	AS16509 Amazon.com, Inc.	0.10ms from Singapore, SG
34.221.128.228	AS16509 Amazon.com, Inc.	0.50ms from Boardman, US

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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