61.66.77.0/24

AS4780 · Digital United Inc.

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Summary

Country	Taiwan
Domain	twnic.net.tw
ASN	AS4780
Parent Range	61.66.0.0/16
Registry	APNIC
ID	TWNIC-TW

WHOIS Details

inetnum:        61.66.0.0 - 61.66.255.255
netname:        TWNIC-TW
descr:          Taiwan Network Information Center
descr:          4F-2, No. 9 Section 2, Roosevelt Road,
descr:          Taipei, Taiwan, R.O.C.
country:        TW
admin-c:        TWA2-AP
tech-c:         TWA2-AP
abuse-c:        AT939-AP
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-lower:      MAINT-TW-TWNIC
mnt-irt:        IRT-TWNIC-AP
last-modified:  2026-02-03T03:39:19Z
source:         APNIC

irt:            IRT-TWNIC-AP
address:        3F., No. 123, Sec. 4, Bade Rd., Songshan Dist., Taipei 105, Taiwan
e-mail:         hostmaster@twnic.tw
abuse-mailbox:  hostmaster@twnic.tw
admin-c:        TWA2-AP
tech-c:         TWA2-AP
auth:           # Filtered
remarks:        Please note that TWNIC is not an ISP and is not empowered
remarks:        to investigate complaints of network abuse.
remarks:        hostmaster@twnic.tw was validated on 2025-05-23
mnt-by:         MAINT-TW-TWNIC
last-modified:  2025-11-17T23:08:34Z
source:         APNIC

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

role:           TWNIC Whois Administrator
address:        Taiwan Network Information Center
address:        3F., No. 123, Sec. 4, Bade Rd., Songshan Dist.,
address:        Taipei, Taiwan, 105
country:        TW
phone:          +886-2-25289696
fax-no:         +886-2-25287756
e-mail:         hostmaster@twnic.net.tw
admin-c:        ck373-AP
tech-c:         TW922-AP
tech-c:         NS10-AP
nic-hdl:        TWA2-AP
notify:         hostmaster@twnic.net.tw
mnt-by:         MAINT-TW-TWNIC
last-modified:  2020-01-02T03:54:20Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 61.66.77.0/24

Range	ASN	Company	Num of IPs
61.66.0.0/16	AS4780	Taiwan Network Information Center	65,536
61.66.0.0/16	AS9919	Taiwan Network Information Center	65,536

Nearby Ranges

BGP prefixes that overlap with 61.66.0.0/16

Range	ASN	Company	Num of IPs
61.66.0.0/16	AS4780	Taiwan Network Information Center	65,536
61.66.0.0/16	AS9919	Taiwan Network Information Center	65,536
61.66.72.0/22	AS9919	New Century InfoComm Tech. Co., Ltd.	1,024
61.66.56.0/24	AS4780	New Century InfoComm Tech. Co., Ltd.	256
61.66.93.0/24	AS4780	New Century InfoComm Tech. Co., Ltd.	256
61.66.95.0/24	AS4780	New Century InfoComm Tech. Co., Ltd.	256
61.66.161.0/24	AS4780	New Century InfoComm Tech. Co., Ltd.	256
61.66.60.0/24	AS4780	New Century InfoComm Tech. Co., Ltd.	256
61.66.163.0/24	AS4780	New Century InfoComm Tech. Co., Ltd.	256
61.66.165.0/24	AS4780	New Century InfoComm Tech. Co., Ltd.	256
61.66.52.0/24	AS4780	New Century InfoComm Tech. Co., Ltd.	256
61.66.180.0/24	AS4780	New Century InfoComm Tech. Co., Ltd.	256
61.66.53.0/24	AS4780	New Century InfoComm Tech. Co., Ltd.	256
61.66.94.0/24	AS4780	New Century InfoComm Tech. Co., Ltd.	256
61.66.92.0/24	AS4780	New Century InfoComm Tech. Co., Ltd.	256
61.66.58.0/24	AS4780	New Century InfoComm Tech. Co., Ltd.	256
61.66.55.0/24	AS4780	New Century InfoComm Tech. Co., Ltd.	256
61.66.106.0/24	AS4780	New Century InfoComm Tech. Co., Ltd.	256
61.66.183.0/24	AS4780	New Century InfoComm Tech. Co., Ltd.	256
61.66.217.0/24	AS9919	New Century InfoComm Tech. Co., Ltd.	256
61.66.31.0/24	AS9919	New Century InfoComm Tech. Co., Ltd.	256
61.66.249.0/24	AS9919	New Century InfoComm Tech. Co., Ltd.	256
61.66.162.0/24	AS4780	New Century InfoComm Tech. Co., Ltd.	256
61.66.29.0/24	AS9919	New Century InfoComm Tech. Co., Ltd.	256
61.66.54.0/24	AS4780	New Century InfoComm Tech. Co., Ltd.	256
61.66.38.0/24	AS4780	New Century InfoComm Tech. 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

Read more

Pingable IPs

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

IP Address	ASN	Details
61.66.77.254	AS4780 Digital United Inc.	`3.47ms` 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
52.116.226.24	AS36351 IBM Cloud	`0.93ms` from Dallas, US
217.39.52.200	AS2856 British Telecommunications PLC	`2.65ms` from Erith, GB
220.191.157.200	AS4134 CHINANET-BACKBONE	`4.56ms` from Hangzhou, CN
31.54.88.120	AS2856 British Telecommunications PLC	`12.28ms` from London, GB
145.241.174.248	AS31898 Oracle Corporation	`0.16ms` from Paris, FR
221.2.154.56	AS4837 CHINA UNICOM China169 Backbone	`3.94ms` from Qingdao, CN
54.205.41.248	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US
36.77.114.56	AS7713 PT Telekomunikasi Indonesia	`10.29ms` from Singapore, SG
153.213.8.24	AS4713 NTT DOCOMO BUSINESS,Inc.	`10.21ms` from Tokyo, JP
87.159.184.168	AS3320 Deutsche Telekom AG	`2.23ms` from Berlin, DE
197.37.112.232	AS8452 TE-AS	`4.12ms` from Cairo, EG
216.62.247.168	AS7018 AT&T Enterprises, LLC	`6.61ms` from Dallas, US
75.66.229.88	AS7922 Comcast Cable Communications, LLC	`15.36ms` from Dallas, US
84.145.142.72	AS3320 Deutsche Telekom AG	`9.14ms` from Frankfurt am Main, DE
118.71.159.40	AS18403 FPT Telecom Company	`1.75ms` from Ho Chi Minh City, VN
117.156.224.56	AS9808 China Mobile Communications Group Co., Ltd.	`9.42ms` from Lanzhou, CN
185.236.14.248	AS201500 Fibrasur Operadores S.L.	`7.97ms` from Madrid, ES
45.172.228.8	AS267795 PRIETO TELLES ALEXANDRE(F1NET TELECOM PY)	`14.90ms` from Osasco, BR
144.52.188.184	AS4134 CHINANET-BACKBONE	`6.00ms` from Qingdao, CN
75.194.195.184	AS6167 Verizon Business	`14.44ms` from San Jose, US
64.170.9.40	AS7018 AT&T Enterprises, LLC	`4.27ms` from San Jose, US
98.37.90.248	AS7922 Comcast Cable Communications, LLC	`11.88ms` from Santa Clara, US
20.188.196.24	AS8075 Microsoft Corporation	`0.69ms` from Sydney, AU
60.83.50.40	AS17676 SoftBank Corp.	`11.19ms` from Tokyo, JP
178.113.176.216	AS25255 ==> TELE2 AUSTRIA <==	`14.32ms` from Vienna, AT

Traceroute

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

traceroute -a -n -q1 -f3 61.66.77.254

traceroute to 61.66.77.254 (61.66.77.254): 64 hops max, 52 byte packets

3 [AS749] 11.16.2.86 3.94 ms

4 [] 47.246.116.226 1.772 ms

5 [] 210.173.176.139 2.822 ms

6 [AS9002] 87.245.232.39 33.099 ms

7 [AS9002] 87.245.251.209 33.125 ms

8 [AS4780] 139.175.58.91 33.609 ms

9 [AS4780] 139.175.56.142 33.852 ms

10 [AS4780] 139.175.57.14 34.863 ms

11 [AS4780] 61.66.77.254 37.169 ms

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

On April 13th 2026

What are IP address ranges?

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