42.245.221.0/24

AS133111  ·  CERNET New Technology Co., Ltd

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Summary

Country China
Domain cernet.edu.cn
ASN AS133111
Registry APNIC
ID SNDXTC-CN

WHOIS Details

inetnum:        42.245.208.0 - 42.245.223.255
netname:        SNDXTC-CN
descr:          ~{H|6{PB<<Ju~}
descr:          CERNET New Technology Co., Ltd
descr:          Beijing 100084, China
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ASSIGNED NON-PORTABLE
remarks:        conn-id BJ003183
mnt-by:         MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2022-05-30T03:21:31Z
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 2025-08-15
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-09-04T00:59:41Z
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 2025-08-15
abuse-mailbox:  abuse@cernet.edu.cn
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:         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

route:          42.245.192.0/18
descr:          CERNET Newtech
origin:         AS133111
mnt-by:         MAINT-CERNET-AP
last-modified:  2017-03-14T04:00:08Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 42.245.0.0/16

No nearby ranges found.

Hosted domains

There are no domains currently hosted on this ASN.

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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
97.132.20.168 AS6167 Verizon Business 17.20ms from Atlanta, US
74.103.202.88 AS701 Verizon Business 2.41ms from Boston, US
198.102.127.40 AS21993 Schlage Lock Company LLC 1.15ms from Chicago, US
145.79.126.72 AS2914 NTT America, Inc. 1.00ms from Frankfurt am Main, DE
14.224.97.72 AS45899 VNPT Corp 5.95ms from Hanoi, VN
212.69.55.136 AS12496 IDNet 2.09ms from London, GB
94.7.34.232 AS5607 Sky UK Limited 1.88ms from London, GB
153.179.42.248 AS4713 NTT DOCOMO BUSINESS,Inc. 4.70ms from Osaka, JP
13.53.151.120 AS16509 Amazon.com, Inc. 0.12ms from Stockholm, SE
116.132.149.40 AS4837 CHINA UNICOM China169 Backbone 8.55ms from Tianjin, CN
105.111.53.248 AS36947 Telecom Algeria 12.83ms from Tunis, TN
71.85.51.40 AS20115 Charter Communications LLC 8.06ms from Atlanta, US
45.32.211.104 AS20473 The Constant Company, LLC 0.12ms from Atlanta, US
192.34.165.56 AS4922 Shenandoah Cable Television LLC 9.24ms from Berkeley Springs, US
201.179.96.56 AS22927 Telefonica de Argentina 8.13ms from Buenos Aires, AR
156.218.247.216 AS8452 TE-AS 7.22ms from Cairo, EG
76.255.179.72 AS7018 AT&T Enterprises, LLC 1.79ms from Dallas, US
119.91.52.200 AS45090 Shenzhen Tencent Computer Systems Company Limited 2.18ms from Guangzhou, CN
148.69.179.216 AS12353 Vodafone Portugal 0.67ms from Lisbon, PT
151.32.192.72 AS1267 WIND TRE S.P.A. 4.12ms from Milan, IT
86.246.209.56 AS3215 Orange S.A. 3.57ms from Paris, FR
108.61.191.72 AS20473 The Constant Company, LLC 0.24ms from Piscataway, US
180.69.254.104 AS9318 SK Broadband Co Ltd 1.98ms from Seoul, KR
20.175.206.136 AS8075 Microsoft Corporation 0.16ms from Toronto, CA
97.201.169.40 AS6167 Verizon Business 13.38ms from Atlanta, US

Traceroute

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

$
traceroute -a -n -q1 -m9 42.245.221.99
traceroute to 42.245.221.99 (42.245.221.99): 9 hops max, 52 byte packets
1 [AS8849] 95.174.71.217 2.747 ms
2 [AS6453] 207.45.216.18 24.74 ms
3 *
4 *
5 [AS174] 38.88.196.186 177.402 ms
6 [AS4538] 101.4.117.249 172.882 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Los Angeles, US
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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