27.101.104.0/24

AS17841 · NATIONAL INFORMATION RESOURCES SERVICE

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Summary

Country	South Korea
Domain	korea.kr
ASN	AS17841
Registry	APNIC
ID	NCIS

WHOIS Details

inetnum:        27.101.0.0 - 27.101.255.255
netname:        NIRS
descr:          NATIONAL INFORMATION RESOURCES SERVICE
country:        KR
admin-c:        IM692-AP
tech-c:         IM692-AP
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2019-04-29T07:39:36Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        Jeollanam-do Naju-si Jinheung-gil
e-mail:         irt@nic.or.kr
abuse-mailbox:  irt@nic.or.kr
admin-c:        IM574-AP
tech-c:         IM574-AP
auth:           # Filtered
remarks:        irt@nic.or.kr was validated on 2020-04-09
mnt-by:         MNT-KRNIC-AP
last-modified:  2021-06-15T06:21:49Z
source:         APNIC

person:         IP Manager
address:        Daejeon Yuseong-gu Daedeok-daero 755
country:        KR
phone:          +82-42-250-5744
e-mail:         modomain@korea.kr
nic-hdl:        IM692-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2023-11-21T01:34:02Z
source:         APNIC

inetnum:        27.101.0.0 - 27.101.255.255
netname:        NIRS-KR
descr:          NATIONAL INFORMATION RESOURCES SERVICE
country:        KR
admin-c:        YK94-KR
tech-c:         K94-KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
remarks:        This information has been partially mirrored by APNIC from
remarks:        KRNIC. To obtain more specific information, please use the
remarks:        KRNIC whois server at whois.kisa.or.kr.
changed:        hostmaster@nic.or.kr
source:         KRNIC

person:         IP Manager
address:        Daejeon Yuseong-gu Daedeok-daero 755
address:        755 Daedeokdae-ro Yusung-gu Daejeon, Korea
country:        KR
phone:          +82-42-250-5744
e-mail:         modomain@korea.kr
nic-hdl:        K94-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr
source:         KRNIC

person:         IP Manager
address:        Daejeon Yuseong-gu Daedeok-daero 755
address:        755 Daedeokdae-ro Yusung-gu Daejeon, Korea
country:        KR
phone:          +82-42-250-5744
e-mail:         modomain@korea.kr
nic-hdl:        YK94-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr
source:         KRNIC

Hosted domains

There are 13 domain names hosted across 10 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
27.101.104.171	aca.or.kr	3
27.101.104.142	fcanyang.com	2
27.101.104.173	apap.or.kr	1
27.101.104.161	ayf.or.kr	1
27.101.104.144	anyang.go.kr	1
27.101.104.174	ayac.or.kr	1
27.101.104.132	anyang1365.or.kr	1
27.101.104.141	agucfc.or.kr	1
27.101.104.153	aycouncil.go.kr	1
27.101.104.189	auc.or.kr	1

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

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

IP Address	ASN	Details
27.101.104.152	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`5.11ms` from Seoul, KR

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
118.173.161.184	AS23969 TOT Public Company Limited	`8.79ms` from Bangkok, TH
86.46.177.72	AS5466 Eircom Limited	`3.96ms` from Dublin, IE
79.250.220.232	AS3320 Deutsche Telekom AG	`3.07ms` from Frankfurt am Main, DE
87.145.195.184	AS3320 Deutsche Telekom AG	`5.96ms` from Frankfurt am Main, DE
130.233.166.152	AS15496 Aalto University	`0.78ms` from Helsinki, FI
193.233.31.104	AS202423 Tyurin Viktor Mihaylovich	`0.55ms` from Moscow, RU
118.195.232.216	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.01ms` from Nanjing, CN
187.23.171.120	AS28573 Claro NXT Telecomunicacoes Ltda	`3.95ms` from Osasco, BR
57.155.161.8	AS8075 Microsoft Corporation	`0.75ms` from Singapore, SG
185.112.100.24	AS208392 "It Saport" Ltd.	`7.48ms` from Sofia, BG
126.218.17.200	AS17676 SoftBank Corp.	`3.13ms` from Tokyo, JP
210.154.205.232	AS4713 NTT Communications Corporation	`1.46ms` from Tokyo, JP
199.137.63.72	AS4152 USDA	`1.27ms` from Ashburn, US
18.189.212.152	AS16509 Amazon.com, Inc.	`0.13ms` from Columbus, US
79.224.158.40	AS3320 Deutsche Telekom AG	`6.36ms` from Frankfurt am Main, DE
2.216.40.168	AS5607 Sky UK Limited	`6.41ms` from London, GB
2.219.132.8	AS5607 Sky UK Limited	`7.41ms` from London, GB
69.192.38.72	AS16625 Akamai Technologies, Inc.	`0.65ms` from Los Angeles, US
66.75.35.200	AS20001 Charter Communications Inc	`6.22ms` from Los Angeles, US
47.181.232.56	AS5650 Frontier Communications of America, Inc.	`1.93ms` from Los Angeles, US
95.163.10.168	AS12695 LLC Digital Network	`1.15ms` from Moscow, RU
23.9.214.40	AS16625 Akamai Technologies, Inc.	`0.46ms` from Mumbai, IN
60.127.252.72	AS17676 SoftBank Corp.	`4.03ms` from Osaka, JP
112.228.0.216	AS4837 CHINA UNICOM China169 Backbone	`4.80ms` from Qingdao, CN
151.77.18.120	AS1267 WIND TRE S.P.A.	`11.37ms` from Rende, IT

Traceroute

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

traceroute -a -n -q1 -f2 27.101.104.1

traceroute to 27.101.104.1 (27.101.104.1): 64 hops max, 52 byte packets

2 [AS15694] 46.229.157.217 1.066 ms

3 [AS15694] 217.17.33.55 1.449 ms

4 [] 80.81.197.58 180.559 ms

5 *

6 *

7 *

8 [AS9318] 39.120.201.142 237.725 ms

9 *

10 *

11 *

12 *

13 [AS37168] 105.0.20.148 234.814 ms

14 [AS37168] 105.0.20.161 232.764 ms

15 [AS17841] 27.101.104.1 236.923 ms

Measurement taken from

IPinfo ProbeNet in Warsaw, PL

On August 28th 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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