42.201.33.0/24

AS133111 · CERNET New Technology Co., Ltd

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Summary

Country	China
Domain	cernet.com
ASN	AS133111
Parent Range	42.201.32.0/19
Registry	APNIC
ID	CERNEWTECH

WHOIS Details

inetnum:        42.201.32.0 - 42.201.63.255
netname:        CERNEWTECH
descr:          CERNEWTECH ( BEIJING ) CORPORATION
descr:          Beijing,Haidian DT,CERNET Tower
descr:          Tsinghua Science Park Building 8
country:        CN
admin-c:        ZM1747-AP
tech-c:         ZM1748-AP
abuse-c:        AC1601-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-CNNIC-AP
mnt-irt:        IRT-CERNEWTECH-CN
last-modified:  2023-11-28T00:57:54Z
source:         APNIC

irt:            IRT-CERNEWTECH-CN
address:        Tsinghua Science Park Building 8
e-mail:         yujj@cernet.com
abuse-mailbox:  yujj@cernet.com
admin-c:        ZM1747-AP
tech-c:         ZM1747-AP
auth:           # Filtered
remarks:        yujj@cernet.com was validated on 2025-12-02
mnt-by:         MAINT-CNNIC-AP
last-modified:  2025-12-02T03:44:58Z
source:         APNIC

role:           ABUSE CNNICCN
country:        ZZ
address:        Beijing, China
phone:          +000000000
e-mail:         ipas@cnnic.cn
admin-c:        IP50-AP
tech-c:         IP50-AP
nic-hdl:        AC1601-AP
remarks:        Generated from irt object IRT-CNNIC-CN
remarks:        ipas@cnnic.cn is invalid
abuse-mailbox:  ipas@cnnic.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-19T17:20:32Z
source:         APNIC

person:         Li Liusheng
address:        Beijing,Haidian DT,CERNET Tower
address:        Tsinghua Science Park Building 8
country:        CN
phone:          +86-010-62603341
e-mail:         lils@cernet.com
nic-hdl:        ZM1747-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2016-12-16T01:54:01Z
source:         APNIC

person:         Bai Shuang
address:        Beijing,Haidian DT,CERNET Tower
address:        Tsinghua Science Park Building 8
country:        CN
phone:          +86-010-62603850
e-mail:         Baishuang@cernet.com
nic-hdl:        ZM1748-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2016-12-16T01:54:01Z
source:         APNIC

route:          42.201.32.0/19
descr:          CERNEWTECH ( BEIJING ) CORPORATION
origin:         AS133111
mnt-by:         MAINT-CNNIC-AP
last-modified:  2021-03-03T08:38:11Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 42.201.33.0/24

Range	ASN	Company	Num of IPs
42.201.32.0/19	AS133111	CERNEWTECH ( BEIJING ) CORPORATION	8,192

Nearby Ranges

BGP prefixes that overlap with 42.201.0.0/16

Range	ASN	Company	Num of IPs
42.201.32.0/19	AS133111	CERNEWTECH ( BEIJING ) CORPORATION	8,192
42.201.128.0/20	AS136907	Huawei-Cloud-HK	4,096
42.201.144.0/20	AS136907	Huawei-Cloud-HK	4,096
42.201.160.0/20	AS136907	Huawei-Cloud-HK	4,096
42.201.176.0/20	AS136907	Huawei-Cloud-HK	4,096
42.201.192.0/20	AS136907	Huawei-Cloud-HK	4,096
42.201.208.0/20	AS136907	Huawei-Cloud-HK	4,096
42.201.224.0/20	AS136907	Huawei-Cloud-HK	4,096
42.201.240.0/20	AS136907	Huawei-Cloud-HK	4,096

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
42.201.33.1	AS133111 CERNET New Technology Co., Ltd	`3.25ms` from Beijing, 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
1.83.107.184	AS4134 CHINANET-BACKBONE	`17.20ms` from Chongqing, CN
94.131.120.40	AS209847 WorkTitans B.V.	`0.26ms` from Frankfurt am Main, DE
90.11.210.184	AS3215 Orange S.A.	`4.43ms` from Frankfurt am Main, DE
95.112.73.40	AS6805 Telefonica Germany GmbH & Co.OHG	`2.12ms` from Hamburg, DE
93.91.36.200	AS51320 Wireless Logic Limited	`3.50ms` from Hanoi, VN
76.93.121.40	AS20001 Charter Communications Inc	`4.38ms` from Los Angeles, US
91.3.82.24	AS3320 Deutsche Telekom AG	`8.77ms` from Nuernberg, DE
153.186.158.88	AS4713 NTT DOCOMO BUSINESS,Inc.	`7.56ms` from Osaka, JP
90.88.69.8	AS3215 Orange S.A.	`2.09ms` from Paris, FR
189.42.31.8	AS4230 CLARO S.A.	`0.47ms` from Sao Paulo, BR
90.143.207.200	AS1257 Tele2 Sverige AB	`6.71ms` from Stockholm, SE
20.167.177.136	AS8075 Microsoft Corporation	`4.81ms` from Sydney, AU
178.113.94.200	AS25255 ==> TELE2 AUSTRIA <==	`9.65ms` from Vienna, AT
70.39.247.24	AS30366 Rhythmic Technologies, Inc.	`0.37ms` from Ashburn, US
54.185.236.40	AS16509 Amazon.com, Inc.	`0.15ms` from Boardman, US
89.154.115.72	AS2860 NOS COMUNICACOES, S.A.	`13.86ms` from Braga, PT
96.179.197.168	AS36377 Comcast Cable Communications, LLC	`0.05ms` from Chicago, US
62.45.225.168	AS15435 DELTA Fiber Nederland B.V.	`7.50ms` from Dronten, NL
168.199.196.152	AS212238 Datacamp Limited	`0.51ms` from Dublin, IE
47.144.109.40	AS5650 Frontier Communications of America, Inc.	`3.94ms` from Los Angeles, US
185.92.39.24	AS30781 Free Pro SAS	`0.39ms` from Marseille, FR
120.147.56.232	AS1221 Telstra Limited	`8.76ms` from Melbourne, AU
220.94.181.40	AS4766 Korea Telecom	`1.42ms` from Seoul, KR
175.244.237.24	AS4766 Korea Telecom	`5.25ms` from Seoul, KR
155.4.14.72	AS8473 Bahnhof AB	`0.73ms` from Stockholm, SE

Traceroute

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

traceroute -a -n -q1 -f6 42.201.33.189

traceroute to 42.201.33.189 (42.201.33.189): 64 hops max, 52 byte packets

6 [AS4538] 101.4.130.105 5.073 ms

7 *

8 [AS133111] 42.201.48.10 11.221 ms

9 [AS133111] 42.201.33.189 3.587 ms

Measurement taken from

IPinfo ProbeNet in Beijing, CN

On January 30th 2026

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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