42.78.0.0/18

AS17421 · Mobile Business Group

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Summary

Country	Taiwan
Domain	cht.com.tw
ASN	AS17421
Registry	APNIC
ID	EMOME-NET

WHOIS Details

inetnum:        42.64.0.0 - 42.79.255.255
netname:        EMOME-NET
descr:          Mobile Business Group
descr:          Chunghwa Telecom Co., Ltd.
descr:          No.35, Aiguo E. Rd , Taipei City
descr:          10641, Taiwan
country:        TW
admin-c:        CBG5-AP
tech-c:         CBG5-AP
abuse-c:        AT939-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-TW-TWNIC
mnt-irt:        IRT-HINET-AP
last-modified:  2025-11-07T02:36:43Z
source:         APNIC

irt:            IRT-HINET-AP
address:        Chunghwa Telecom Co.,Ltd.
address:        No.21-3, Sec. 1, Xinyi Rd., Taipei 10048, Taiwan, R.O.C.
address:        Taipei
phone:          +886-2-2322-3495
e-mail:         network-adm@hinet.net
abuse-mailbox:  abuse@hinet.net
admin-c:        TR391-AP
tech-c:         TR391-AP
remarks:        (oid:HINET)
auth:           # Filtered
mnt-by:         MAINT-TW-TWNIC
last-modified:  2025-11-06T07:20:07Z
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:           CHT-Mobile Business Group
address:        7F, No. 52 Sec. 2 Chin-Shan S. Rd.
address:        Taipei, Taiwan, 106
country:        TW
phone:          +886-2-2344-2803
fax-no:         +886-2-2394-0814
e-mail:         chinhu@cht.com.tw
admin-c:        CH1309-AP
tech-c:         RL720-AP
nic-hdl:        CBG5-AP
remarks:        The role object should be used when making
remarks:        changes to admin-c or tech-c handle.
notify:         hostmaster@twnic.net.tw
mnt-by:         MAINT-TW-TWNIC
last-modified:  2009-10-09T04:30:10Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 42.78.0.0/16

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

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
38.240.8.2	AS396168 ThinkBig Networks, LLC	`3.05ms` from Ashburn, US
194.55.2.2	AS20775 KPS Transformation GmbH	`1.00ms` from Frankfurt am Main, DE
91.16.37.194	AS3320 Deutsche Telekom AG	`2.71ms` from Frankfurt am Main, DE
37.100.173.18	AS1267 WIND TRE S.P.A.	`5.22ms` from Frosinone, IT
122.100.238.18	AS4609 Companhia de Telecomunicacoes de Macau SARL	`2.87ms` from Hong Kong, HK
61.244.54.114	AS9269 Hong Kong Broadband Network Ltd.	`1.22ms` from Hong Kong, HK
210.3.89.146	AS9304 HGC Global Communications Limited	`0.92ms` from Hong Kong, HK
194.73.3.98	AS2856 British Telecommunications PLC	`0.84ms` from London, GB
194.74.138.2	AS2856 British Telecommunications PLC	`2.51ms` from London, GB
86.163.7.162	AS2856 British Telecommunications PLC	`7.42ms` from London, GB
86.154.6.242	AS2856 British Telecommunications PLC	`5.67ms` from London, GB
47.143.55.18	AS5650 Frontier Communications of America, Inc.	`3.58ms` from Los Angeles, US
89.187.185.82	AS60068 Datacamp Limited	`0.47ms` from Los Angeles, US
93.45.18.82	AS12874 Fastweb SpA	`0.84ms` from Milan, IT
24.104.218.162	AS12271 Charter Communications Inc	`3.84ms` from New York City, US
45.93.216.34	AS199967 Think Huge Ltd	`0.54ms` from New York City, US
115.37.235.66	AS18126 Chubu Telecommunications Company, Inc.	`4.26ms` from Osaka, JP
219.166.139.34	AS4713 NTT DOCOMO BUSINESS,Inc.	`6.51ms` from Osaka, JP
54.80.204.130	AS14618 Amazon.com, Inc.	`0.24ms` from Reston, US
71.6.36.130	AS14265 TPx Communications	`5.58ms` from San Jose, US
93.124.224.2	AS25400 Telia Norge AS	`2.78ms` from Sandefjord, NO
20.212.222.114	AS8075 Microsoft Corporation	`0.77ms` from Singapore, SG
121.30.217.130	AS4837 CHINA UNICOM China169 Backbone	`7.17ms` from Taiyuan, CN
23.223.56.66	AS16625 Akamai Technologies, Inc.	`0.21ms` from Tokyo, JP
126.29.98.50	AS17676 SoftBank Corp.	`7.49ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -f2 -m6 42.78.42.206

traceroute to 42.78.42.206 (42.78.42.206): 6 hops max, 52 byte packets

2 [AS20278] 167.88.4.233 1.7 ms

3 [AS20278] 167.88.4.218 0.372 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Chicago, US

On November 14th 2025

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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