221.123.112.0/20

AS23724 · IDC, China Telecommunications Corporation

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Summary

Country	China
Domain	chinatelecom.cn
ASN	AS23724
Registry	APNIC
ID	CTXXQD

WHOIS Details

inetnum:        221.123.0.0 - 221.123.127.255
netname:        CTXXQD
descr:          China Telecom Group Corporation Qingdao Branch
descr:          No. 17 Shi Ling Road, Laoshan District, Qingdao City,
descr:          Shandong Province
country:        CN
admin-c:        YW7365-AP
tech-c:         JS4619-AP
mnt-by:         MAINT-CNNIC-AP
mnt-lower:      MAINT-CNNIC-AP
mnt-irt:        IRT-CTXXQD-CN
mnt-routes:     MAINT-CNNIC-AP
status:         ALLOCATED PORTABLE
last-modified:  2024-08-27T05:43:40Z
source:         APNIC

irt:            IRT-CTXXQD-CN
address:        No. 17 Shi Ling Road, Laoshan District, Qingdao City,
address:        Shandong Province
e-mail:         qdzhouy.sd@chinatelecom.cn
abuse-mailbox:  qdzhouy.sd@chinatelecom.cn
admin-c:        YW7365-AP
tech-c:         JS4619-AP
auth:           # Filtered
mnt-by:         MAINT-CNNIC-AP
last-modified:  2024-08-27T05:27:53Z
source:         APNIC

person:         Suqin Ma
address:        No. 17 Shi Ling Road, Laoshan District, Qingdao City,
address:        Shandong Province
country:        CN
phone:          +86-15315013036
e-mail:         masq.sd@chinatelecom.cn
nic-hdl:        JS4619-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2024-08-27T05:27:33Z
source:         APNIC

person:         Yuan Zhou
address:        No. 17 Shi Ling Road, Laoshan District, Qingdao City,
address:        Shandong Province
country:        CN
phone:          +86-15315026789
e-mail:         qdzhouy.sd@chinatelecom.cn
nic-hdl:        YW7365-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2024-08-27T05:27:33Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 221.123.0.0/16

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

Read more

Pingable IPs

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

IP Address	ASN	Details
221.123.112.231	AS23724 IDC, China Telecommunications Corporation	`4.31ms` from Tianjin, 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
23.121.111.116	AS7018 AT&T Enterprises, LLC	`12.70ms` from Atlanta, US
141.9.105.196	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`4.71ms` from Berlin, DE
195.98.18.100	AS5578 SWAN, a.s.	`1.49ms` from Bratislava, SK
169.63.62.212	AS36351 IBM Cloud	`1.12ms` from Dallas, US
84.137.233.132	AS3320 Deutsche Telekom AG	`6.69ms` from Duesseldorf, DE
213.179.64.20	AS13251 QiTEC GmbH	`4.82ms` from Falkenstein, DE
83.233.60.180	AS29518 Bredband2 AB	`13.82ms` from Hamburg, DE
107.91.33.20	AS20057 AT&T Enterprises, LLC	`8.38ms` from Houston, US
95.144.240.212	AS2856 British Telecommunications PLC	`4.66ms` from London, GB
86.168.14.148	AS2856 British Telecommunications PLC	`6.37ms` from London, GB
38.103.195.20	AS174 Cogent Communications, LLC	`0.69ms` from Los Angeles, US
185.177.154.100	AS201446 Soluciones web on line s.l.	`0.44ms` from Madrid, ES
119.94.59.164	AS9299 Philippine Long Distance Telephone Company	`1.63ms` from Manila, PH
86.225.31.244	AS3215 Orange S.A.	`10.36ms` from Paris, FR
182.213.124.132	AS17858 LG POWERCOMM	`2.02ms` from Seoul, KR
58.227.192.4	AS9318 SK Broadband Co Ltd	`1.12ms` from Seoul, KR
63.222.120.36	AS3491 PCCW Global, Inc.	`0.31ms` from Ashburn, US
110.253.195.68	AS4837 CHINA UNICOM China169 Backbone	`7.30ms` from Beijing, CN
95.130.231.20	AS216287 BAKAI BANK Open Joint Stock Company	`0.49ms` from Bishkek, KG
52.41.203.180	AS16509 Amazon.com, Inc.	`0.18ms` from Boardman, US
87.168.181.180	AS3320 Deutsche Telekom AG	`3.11ms` from Frankfurt am Main, DE
183.2.127.244	AS136199 CHINANET Guangdong province Yuedong MAN network	`3.92ms` from Guangzhou, CN
217.46.54.4	AS2856 British Telecommunications PLC	`3.83ms` from London, GB
104.51.240.116	AS7018 AT&T Enterprises, LLC	`2.88ms` from Los Angeles, US
195.244.220.132	AS8301 Gibtelecom Ltd.	`10.71ms` from Madrid, ES

Traceroute

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

traceroute -a -n -q1 -m10 221.123.117.126

traceroute to 221.123.117.126 (221.123.117.126): 10 hops max, 52 byte packets

1 [AS56630] 77.72.16.177 0.629 ms

2 [] 80.249.214.131 2.61 ms

3 *

4 *

5 *

6 [AS23724] 36.110.245.210 188.521 ms

7 [AS23724] 106.120.186.102 142.034 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On November 14th 2025

What are IP address ranges?

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