211.76.240.0/20

AS18185 · NTCU

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Summary

Country	Taiwan
Domain	nctu.edu.tw
ASN	AS18185
Registry	APNIC
ID	TWNCTU-NET

WHOIS Details

inetnum:        211.76.240.0 - 211.76.255.255
netname:        TWNCTU-NET
descr:          National Chiao Tung University
descr:          1001 University Road, Hsinchu,
descr:          Taiwan 30010
country:        TW
admin-c:        YK1273-AP
tech-c:         YK1274-AP
abuse-c:        AT939-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-TW-TWNIC
mnt-irt:        IRT-TWNCTU-TW
last-modified:  2025-11-07T02:33:18Z
source:         APNIC

irt:            IRT-TWNCTU-TW
address:        National Yang Ming Chiao Tung University
address:        1001, Ta Hsueh Road
address:        Hsinchu
phone:          +886-3-5712121
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        TR593-AP
tech-c:         TR593-AP
remarks:        (oid:TWNCTU)
mnt-by:         MAINT-TW-TWNIC
last-modified:  2025-11-06T07:53:20Z
source:         APNIC
auth:           # Filtered

role:           ABUSE TWNICAP
country:        ZZ
address:        3F., No. 123, Sec. 4, Bade Rd., Songshan Dist., Taipei 105, Taiwan
phone:          +000000000
e-mail:         [email protected]
admin-c:        TWA2-AP
tech-c:         TWA2-AP
nic-hdl:        AT939-AP
remarks:        Generated from irt object IRT-TWNIC-AP
remarks:        [email protected] was validated on 2025-05-23
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-05-23T00:02:10Z
source:         APNIC

person:         Yi-Chih Kao
address:        1001 University Road, Hsinchu, Taiwan 30010
country:        TW
phone:          +8863-5731905
e-mail:         [email protected]
nic-hdl:        YK1273-AP
mnt-by:         MAINT-TW-TWNIC
last-modified:  2020-05-29T00:38:56Z
source:         APNIC

person:         Yi-Quan Ke
address:        1001 University Road, Hsinchu, Taiwan 30010
country:        TW
phone:          +8863-5731706
e-mail:         [email protected]
nic-hdl:        YK1274-AP
mnt-by:         MAINT-TW-TWNIC
last-modified:  2020-05-29T00:39:32Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 211.76.0.0/16

Range	ASN	Company	Num of IPs
211.76.0.0/19	AS7478	Mackay Telecommunications Inc.	8,192
211.76.32.0/19	AS24163	UNION CABLE TV CO.,LTD.	8,192
211.76.32.0/19	AS24164	UNION CABLE TV CO.,LTD.	8,192
211.76.160.0/20	AS18181	135, Keyan Road, Zhunan Town,	4,096
211.76.96.0/20	AS24154	Eastern Broadband Telecom Co., Ltd	4,096
211.76.112.0/20	AS38841	kbro CO. Ltd.	4,096
211.76.128.0/20	AS9216	Symphox Information Co.,Ltd.	4,096
211.76.128.0/20	AS56179	Symphox Information Co.,Ltd.	4,096
211.76.96.0/20	AS17709	Eastern Broadband Telecom Co., Ltd	4,096
211.76.80.0/20	AS9676	Hualien CATV Corporation	4,096
211.76.64.0/20	AS24164	UNION BROADBAND NETWORK	4,096
211.76.64.0/21	AS24164	TFN MEDIA CO., LTD.	2,048
211.76.56.0/22	AS24164	TFN MEDIA CO., LTD.	1,024
211.76.176.0/23	AS131642	Pittqiao Network Information Co.,Ltd.	512
211.76.190.0/23	AS131666	Haosing Technology Co., Ltd.	512
211.76.180.0/23	AS18041	Taiwan Digital Streaming Co.	512
211.76.186.0/23	AS38042	Sky Digital Co., Ltd.	512
211.76.117.0/24	AS38841	kbro CO. Ltd.	256
211.76.118.0/24	AS38841	kbro CO. Ltd.	256
211.76.119.0/24	AS38841	kbro CO. Ltd.	256
211.76.120.0/24	AS38841	kbro CO. Ltd.	256
211.76.125.0/24	AS38841	kbro CO. Ltd.	256
211.76.126.0/24	AS38841	kbro CO. Ltd.	256
211.76.127.0/24	AS38841	kbro CO. Ltd.	256
211.76.116.0/24	AS38841	kbro CO. Ltd.	256
211.76.115.0/24	AS38841	kbro CO. Ltd.	256
211.76.114.0/24	AS38841	kbro CO. Ltd.	256
211.76.112.0/24	AS38841	kbro CO. Ltd.	256

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

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Pingable IPs

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

IP Address	ASN	Details
211.76.240.234	AS18185 NTCU	`2.24ms` from Taipei, TW
211.76.246.254	AS18185 NTCU	`2.67ms` from Taipei, TW
211.76.255.222	AS18185 NTCU	`0.79ms` from Taipei, TW
211.76.253.254	AS18185 NTCU	`2.55ms` from Taipei, TW
211.76.245.254	AS18185 NTCU	`2.62ms` from Taipei, TW
211.76.254.254	AS18185 NTCU	`2.36ms` from Taipei, TW
211.76.251.254	AS18185 NTCU	`2.23ms` from Taipei, TW
211.76.247.1	AS18185 NTCU	`4.92ms` from Taipei, TW
211.76.249.254	AS18185 NTCU	`2.21ms` from Taipei, TW

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
51.158.164.84	AS12876 SCALEWAY S.A.S.	`0.29ms` from Amsterdam, NL
50.222.19.116	AS7922 Comcast Cable Communications, LLC	`1.48ms` from Atlanta, US
109.136.216.36	AS5432 Proximus NV	`1.14ms` from Brussels, BE
41.45.77.84	AS8452 TE-AS	`5.69ms` from Cairo, EG
169.38.97.68	AS36351 IBM Cloud	`1.10ms` from Chennai, IN
35.128.14.20	AS30517 Great Lakes Comnet, Inc.	`12.59ms` from Chicago, US
76.243.199.164	AS7018 AT&T Enterprises, LLC	`3.07ms` from Chicago, US
104.157.59.52	AS852 TELUS Communications Inc.	`1.42ms` from Edmonton, CA
90.212.123.212	AS5607 Sky UK Limited	`1.60ms` from Erith, GB
223.6.48.100	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`7.53ms` from Hangzhou, CN
185.4.69.4	AS20978 TT Mobil Iletisim Hizmetleri A.S	`0.95ms` from Istanbul, TR
80.46.50.36	AS13285 TalkTalk Communications Limited	`1.58ms` from London, GB
134.129.53.116	AS19530 State of North Dakota, ITD	`7.29ms` from Minneapolis, US
162.84.198.68	AS701 Verizon Business	`2.60ms` from New York City, US
114.179.43.196	AS4713 NTT DOCOMO BUSINESS,Inc.	`4.70ms` from Osaka, JP
77.30.207.68	AS25019 Saudi Telecom Company JSC	`2.56ms` from Riyadh, SA
13.93.141.20	AS8075 Microsoft Corporation	`0.55ms` from San Jose, US
188.25.233.116	AS8708 DIGI ROMANIA S.A.	`3.11ms` from Timisoara, RO
150.147.111.164	AS2527 Sony Network Communications Inc.	`6.66ms` from Tokyo, JP
161.33.157.116	AS31898 Oracle Corporation	`0.36ms` from Tokyo, JP
80.158.89.20	AS6878 T-Systems International GmbH	`2.49ms` from Berlin, DE
109.133.163.212	AS5432 Proximus NV	`1.99ms` from Brussels, BE
176.96.130.20	AS213945 DATA HOME YAZILIM BILGI TEKNOLOJILERI TICARET LIMITED SIRKETI	`0.15ms` from Bursa, TR
73.217.221.116	AS7922 Comcast Cable Communications, LLC	`12.29ms` from Chicago, US
50.24.199.164	AS19108 Optimum	`7.38ms` from Dallas, US

Traceroute

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

traceroute -a -n -q1 -m6 211.76.242.83

traceroute to 211.76.242.83 (211.76.242.83): 6 hops max, 52 byte packets

1 [AS31898] 217.142.174.14 0.073 ms

2 [AS6453] 180.87.0.162 0.489 ms

3 [AS6453] 180.87.0.161 0.639 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Singapore, SG

On January 30th 2026

What are IP address ranges?

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