219.81.72.0/21

AS9924 · Taiwan Fixed Network, Telco and Network Service Provider.

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Summary

Country	Taiwan
Domain	taiwanmobile.com
ASN	AS9924
Parent Range	219.80.0.0/15
Registry	TWNIC
ID	TFN-NET

WHOIS Details

inetnum:        219.81.72.0 - 219.81.79.255
netname:        TFN-NET
descr:          Taiwan Fixed Network CO.,LTD.
descr:          15 F., No. 172-1, Sec. 2, Keelung Rd., Da-an Dist.
descr:          Taipei City Taiwan
country:        TW
admin-c:        L369-TW
tech-c:         L369-TW
mnt-by:         MAINT-TW-TWNIC
changed:        [email protected] 20200314
status:
remarks:        This information has been partially mirrored by APNIC from
remarks:        TWNIC. To obtain more specific information, please use the
remarks:        TWNIC whois server at whois.twnic.net.
source:         TWNIC


person:         Hans Liu
address:        System Design Div.
address:        12th Floor, No. 88, Yanchang Road, Xinyi District
address:        Taipei  Taiwan
country:        TW
phone:          +886-9-5393-1934
fax-no:
e-mail:         [email protected]
nic-hdl:        L369-TW
changed:        [email protected] 20210602
remarks:        This information has been partially mirrored by APNIC from
remarks:        TWNIC. To obtain more specific information, please use the
remarks:        TWNIC whois server at whois.twnic.net.
source:         TWNIC

Overlapping Ranges

BGP prefixes that contain 219.81.72.0/21

Range	ASN	Company	Num of IPs
219.80.0.0/15	AS9924	Taiwan Fixed Network CO.,LTD.	131,072

Nearby Ranges

BGP prefixes that overlap with 219.81.0.0/16

Range	ASN	Company	Num of IPs
219.80.0.0/15	AS9924	Taiwan Fixed Network CO.,LTD.	131,072
219.81.88.0/23	AS9924	Taiwan Fixed Network CO.,LTD.	512

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

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
97.66.85.85	AS7029 Windstream Communications LLC	`8.00ms` from Atlanta, US
45.184.54.5	AS269315 CLACI FABER PARIZOTTO EIRELI - ME	`5.39ms` from Chapeco, BR
90.235.26.117	AS3301 Telia Company AB	`10.44ms` from Goeteborg, SE
187.232.130.149	AS8151 UNINET	`11.39ms` from Guadalajara, MX
115.199.100.69	AS4134 CHINANET-BACKBONE	`6.69ms` from Hangzhou, CN
118.69.170.181	AS18403 FPT Telecom Company	`0.64ms` from Ho Chi Minh City, VN
60.169.33.181	AS4134 CHINANET-BACKBONE	`7.23ms` from Huai'an, CN
115.5.115.213	AS4766 Korea Telecom	`1.44ms` from Incheon, KR
190.240.68.85	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`8.12ms` from Medellin, CO
185.8.148.37	AS49605 Digital Telecommunication Services S.r.l.	`0.40ms` from Milan, IT
46.241.82.69	AS21127 Joint Stock Company TransTeleCom	`11.39ms` from Novosibirsk, RU
191.35.215.117	AS18881 TELEFÔNICA BRASIL S.A	`3.91ms` from Osasco, BR
191.180.165.197	AS28573 Claro NXT Telecomunicacoes Ltda	`5.69ms` from Osasco, BR
130.254.89.165	AS49544 i3D.net B.V	`0.70ms` from Singapore, SG
110.145.198.5	AS1221 Telstra Limited	`0.66ms` from Sydney, AU
203.217.121.37	AS17809 VEE TIME CORP.	`2.84ms` from Taipei, TW
1.27.236.69	AS4837 CHINA UNICOM China169 Backbone	`16.83ms` from Tieling, CN
120.136.227.245	AS10010 TOKAI Communications Corporation	`9.59ms` from Tokyo, JP
113.158.27.165	AS2516 KDDI CORPORATION	`11.23ms` from Tokyo, JP
87.196.55.245	AS2860 NOS COMUNICACOES, S.A.	`2.37ms` from Braga, PT
45.14.136.133	AS205285 Kapulan Kft.	`7.52ms` from Budapest, HU
41.239.149.69	AS8452 TE-AS	`3.58ms` from Cairo, EG
75.176.6.101	AS11426 Charter Communications Inc	`3.50ms` from Charlotte, US
50.102.84.197	AS5650 Frontier Communications of America, Inc.	`9.45ms` from Chicago, US
23.121.122.117	AS7018 AT&T Enterprises, LLC	`5.67ms` from Chicago, US

Traceroute

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

traceroute -a -n -q1 -f4 -m11 219.81.77.188

traceroute to 219.81.77.188 (219.81.77.188): 11 hops max, 52 byte packets

4 [] 138.199.0.10 30.955 ms

5 [] 185.156.45.19 139.008 ms

6 [] 185.156.45.77 139.109 ms

7 *

8 [AS9924] 60.199.6.17 171.014 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Dallas, US

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.

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