61.254.128.0/19

AS9644 · SK Telecom

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Summary

Country	South Korea
Domain	sktelecom.com
ASN	AS9644
Registry	APNIC
ID	SK-TELECOM-NET

WHOIS Details

inetnum:        61.254.128.0 - 61.254.159.255
netname:        SK-TELECOM-NET
descr:          SK Telecom
admin-c:        IM687-AP
tech-c:         IM687-AP
country:        KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2017-02-02T06:03:35Z
source:         APNIC

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

person:         IP Manager
address:        Seoul Jung-gu Eulji-ro 65
country:        KR
phone:          +82-2-1599-0011
e-mail:         [email protected]
nic-hdl:        IM687-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2017-10-10T00:50:38Z
source:         APNIC

inetnum:        61.254.128.0 - 61.254.159.255
netname:        SK-TELECOM-NET-KR
descr:          SK Telecom
country:        KR
admin-c:        IA110-KR
tech-c:         IA110-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:        [email protected]
source:         KRNIC

person:         IP Manager
address:        Seoul Jung-gu Eulji-ro 65
address:        T tower
country:        KR
phone:          +82-2-1599-0011
e-mail:         [email protected]
nic-hdl:        IA110-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected]
source:         KRNIC

Overlapping Ranges

BGP prefixes that are contained by 61.254.128.0/19

Range	ASN	Company	Num of IPs
61.254.148.0/24	AS18302	diregtori system	256

Nearby Ranges

BGP prefixes that overlap with 61.254.0.0/16

Range	ASN	Company	Num of IPs
61.254.0.0/17	AS9318	SK Broadband Co Ltd	32,768
61.254.192.0/18	AS9318	SK Broadband Co Ltd	16,384
61.254.160.0/19	AS9318	SK Broadband Co Ltd	8,192
61.254.148.0/24	AS18302	diregtori system	256
61.254.186.0/24	AS9532	Mirae Asset Securities Co. Inc	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

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
52.13.202.195	AS16509 Amazon.com, Inc.	`0.19ms` from Boardman, US
201.179.69.83	AS22927 Telefonica de Argentina	`7.79ms` from Buenos Aires, AR
79.247.123.163	AS3320 Deutsche Telekom AG	`7.19ms` from Frankfurt am Main, DE
114.117.73.83	AS45090 Shenzhen Tencent Computer Systems Company Limited	`4.63ms` from Guangzhou, CN
159.8.185.115	AS36351 IBM Cloud	`1.15ms` from London, GB
193.151.40.243	AS31345 Business Network Ltd	`1.02ms` from Minsk, BY
65.92.120.35	AS577 Bell Canada	`6.50ms` from Montreal, CA
159.172.193.163	AS14618 Amazon.com, Inc.	`0.42ms` from Reston, US
32.222.75.3	AS46690 Southern New England Telephone Company and SNET America, Inc.	`4.67ms` from Secaucus, US
49.170.17.51	AS17858 LG POWERCOMM	`5.90ms` from Seoul, KR
218.145.169.35	AS4766 Korea Telecom	`1.25ms` from Seoul, KR
175.231.224.147	AS4766 Korea Telecom	`2.25ms` from Seoul, KR
13.229.68.147	AS16509 Amazon.com, Inc.	`0.15ms` from Singapore, SG
35.240.148.19	AS396982 Google LLC	`0.14ms` from Singapore, SG
20.188.250.19	AS8075 Microsoft Corporation	`0.74ms` from Sydney, AU
109.177.166.195	AS5384 Emirates Internet	`2.39ms` from Al Fujairah City, AE
51.124.213.99	AS8075 Microsoft Corporation	`0.27ms` from Amsterdam, NL
50.57.167.3	AS19994 Rackspace Hosting	`1.30ms` from Chicago, US
209.36.240.227	AS7018 AT&T Enterprises, LLC	`1.31ms` from Dallas, US
80.93.27.67	AS31122 Digiweb ltd	`0.57ms` from Dublin, IE
73.144.98.67	AS7922 Comcast Cable Communications, LLC	`7.62ms` from Flint, US
84.155.175.83	AS3320 Deutsche Telekom AG	`3.69ms` from Frankfurt am Main, DE
187.212.140.243	AS8151 UNINET	`2.10ms` from Guadalajara, MX
3.11.142.211	AS16509 Amazon.com, Inc.	`0.19ms` from London, GB
219.126.239.83	AS2497 Internet Initiative Japan Inc.	`4.26ms` from Osaka, JP

Traceroute

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

traceroute -a -n -q1 -m5 61.254.137.100

traceroute to 61.254.137.100 (61.254.137.100): 5 hops max, 52 byte packets

1 [AS208450] 45.136.59.1 5.947 ms

2 [AS41371] 88.151.180.149 0.414 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Aktau, KZ

On December 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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