Data as of Nov 5, 2026
124.0.0.0/15
No anonymizer spaceSK Telecom
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 124.1.37.0/24 since Mar 2009 | AS38398 | Business | SK Telecom | |
| 124.1.47.128/25 | AS38410 | Business | SK Telecom |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
131,072 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Mobile | 130,688 | >99% | 3 | |
| Business | 384 | 0.29% | 2 |
Network & registry
Origin network
AS9644
KR
- Name
- SK Telecom
- Type
- Internet provider
- Registered
- Aug 18, 1999
- Domain
- sktelecom.com
- Website
- www.sktelecom.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Nov 2005
- Current origin since
- Apr 2025 · 1.5 yr
- Origin networks
- 2
- Last change of origin
- Apr 2025
Recorded history
History
- Handoffs
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS9318 not the origin | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Apr 27, 2006 |
| AS9644 | RADB | SKTelecom | MAINT-AS9318 | May 1, 2025 |
| AS18302 not the origin | NTTCOM | SKNETWORKS | MAINT-SKNETWORKS | Nov 8, 2005 |
| AS18302 not the origin | RADB | PACNET (proxy-registered route object) | MAINT-AS4637 | Nov 13, 2023 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 124.0.12.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.14.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.15.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.16.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.17.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.20.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.22.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.24.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.31.0/24 | AS38403 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Mar 22, 2011 |
| 124.0.45.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.65.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.66.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.71.0/24 | AS4766 | RADB | Yesan Offic of Education | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.81.0/24 | AS4766 | RADB | Boryeong Office of Education | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.84.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.85.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.86.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.89.0/24 | AS4766 | RADB | Chungnam node - nonsan edu office | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.92.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.96.0/24 | AS4766 | RADB | Taean Office of Education | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.97.0/24 | AS4766 | RADB | Taean Offce of Education | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.98.0/24 | AS4766 | RADB | Taean Office of Education | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.100.0/24 | AS4766 | RADB | Yesan Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.101.0/24 | AS4766 | RADB | Yesan Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.102.0/24 | AS4766 | RADB | Dangjin Office of Education | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.106.0/24 | AS4766 | RADB | Nonsan Office of Education | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.114.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.115.0/24 | AS55632 | RADB | Hansol High School | MAINT-AS9318 | Nov 13, 2023 |
| 124.0.122.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.123.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.126.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.127.0/24 | AS4766 | RADB | Nonsan Office of Education | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.128.0/24 | AS45969 | RADB | Geumsan Office of Education | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.132.0/24 | AS4766 | RADB | Taean Office of Education | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.138.0/24 | AS4766 | RADB | Taean Office of Education | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.141.0/24 | AS4766 | RADB | Taean Office of Education | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.143.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.145.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.151.0/24 | AS4766 | RADB | Taean Office of Education | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.156.0/24 | AS45975 | RADB | Seocheon Office of Education | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.172.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.174.0/24 | AS4766 | RADB | Nonsan Office of Education | MAINT-AS4766 | Nov 13, 2023 |
| 124.0.223.0/24 | AS38664 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 124.1.13.0/24 | AS38408 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 22, 2011 |
| 124.1.21.0/24 | AS4766 | RADB | Hongseong NSC Edu | MAINT-AS4766 | Nov 13, 2023 |
| 124.1.34.0/24 | AS38390 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 22, 2009 |
| 124.1.53.0/24 | AS38391 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Dec 14, 2008 |
| 124.1.54.0/24 | AS38405 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Mar 27, 2011 |
| 124.1.55.0/24 | AS38391 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Mar 23, 2011 |
| 124.1.57.0/24 | AS38406 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 23, 2009 |
| 124.1.60.0/24 | AS38400 | RADB | AS38400 | MAINT-AS9318 | Nov 13, 2023 |
| 124.1.61.0/24 | AS38400 | RADB | AS38400 | MAINT-AS9318 | Nov 13, 2023 |
| 124.1.62.0/24 | AS38400 | RADB | AS38400 | MAINT-AS9318 | Nov 13, 2023 |
| 124.1.63.0/24 | AS38400 | RADB | AS38400 | MAINT-AS9318 | Nov 13, 2023 |
| 124.1.65.0/24 | AS38400 | RADB | AS38400 | MAINT-AS9318 | Nov 13, 2023 |
| 124.1.67.0/24 | AS38412 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 23, 2009 |
| 124.1.69.0/24 | AS38411 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 23, 2009 |
| 124.1.70.0/24 | AS38408 | RADB | AS38408 | MAINT-AS9318 | Nov 13, 2023 |
| 124.1.72.0/24 | AS38390 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 22, 2009 |
| 124.1.73.0/24 | AS38390 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 22, 2009 |
| 124.1.74.0/24 | AS38390 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 22, 2009 |
| 124.1.75.0/24 | AS38390 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 22, 2009 |
| 124.1.76.0/24 | AS38390 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 22, 2009 |
| 124.1.77.0/24 | AS38390 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 22, 2009 |
| 124.1.78.0/24 | AS38390 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 22, 2009 |
| 124.1.79.0/24 | AS38390 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 22, 2009 |
| 124.1.80.0/24 | AS38390 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 22, 2009 |
| 124.1.82.0/24 | AS38396 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 23, 2009 |
| 124.1.105.0/24 | AS38408 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 22, 2011 |
| 124.1.130.0/24 | AS38414 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 22, 2009 |
| 124.1.131.0/24 | AS38402 | RADB | AS38402 | MAINT-AS9318 | Nov 13, 2023 |
| 124.1.132.0/24 | AS38402 | RADB | AS38402 | MAINT-AS9318 | Nov 13, 2023 |
| 124.1.151.0/24 | AS38390 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 22, 2009 |
| 124.1.152.0/24 | AS38390 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 22, 2009 |
| 124.1.153.0/24 | AS38390 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 22, 2009 |
| 124.1.154.0/24 | AS38390 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 22, 2009 |
| 124.1.155.0/24 | AS38390 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 22, 2009 |
| 124.1.156.0/24 | AS38390 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 22, 2009 |
| 124.1.157.0/24 | AS38415 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | Feb 23, 2009 |
| 124.1.186.0/24 | AS10183 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 124.1.186.0/24 | AS9318 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Apr 27, 2006 |
| 124.1.187.0/24 | AS10183 | RADB | Proxy-Registered Route Object by DACOM(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 124.1.187.0/24 | AS9318 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Apr 27, 2006 |
| 124.1.188.0/24 | AS10183 | RADB | Proxy-Registered Route Object by DACOM(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 124.1.188.0/24 | AS9318 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Apr 27, 2006 |
| 124.1.189.0/24 | AS10183 | RADB | Proxy-Registered Route Object by DACOM(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 124.1.189.0/24 | AS9318 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Apr 27, 2006 |
| 124.1.190.0/24 | AS9318 | REACH | REACH (Customer Route) | MAINT-REACH-NOC | Apr 27, 2006 |
| 124.1.251.0/24 | AS10154 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
| 124.1.252.0/24 | AS10154 | RADB | Proxy-Registered Route Object by LG Dacom(AS3786) | MAINT-AS3786 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 124.
0. 0. 0/ 15 - Netname
- SK-TELECOM-NET-KR
- Registrant
- SK Telecom
- Registrant country
- KR
- Organization
- SK Telecom
- Org country
- KR
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Maintainer
- MNT-KRNIC-AP
- RIR
- APNIC
- Country
- KR
- Delegated
- Nov 4, 2005
- Status
- assigned
Report abuse
Abuse contact
- irt@
nic. or. kr - Name
- IRT-KRNIC-KR
- Handle
- IRT-KRNIC-KR