Autonomous System
AS17841 NATIONAL INFORMATION RESOURCES SERVICE
GovernmentActiveSouth KoreaAPNIC
AS17841 (NCIA-AS-KR-KR) is a government network operated by NATIONAL INFORMATION RESOURCES SERVICE in South Korea, registered with APNIC. It has 497 IPv4 prefixes with 358,144 addresses, which makes it the 837th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses358,144in 497 prefixes
IPv6 prefixes0none
Size rank#837of 82,200 active ASNs
Details
OrganizationNATIONAL INFORMATION RESOURCES SERVICE
AS nameNCIA-AS-KR-KR
Websitenirs.go.kr
Country South Korea (KR)
Network typeGovernment
RegistryAPNIC
Abuse contactirt@nic.or.kr
Registered—
Last updated2021-09-13
IPv4 prefixes
497 prefixes · 358,144 addresses| Network | Addresses | First – last address |
|---|---|---|
| 27.101.0.0/16 | 65,536 | 27.101.0.0 – 27.101.255.255 |
| 152.99.0.0/16 | 65,536 | 152.99.0.0 – 152.99.255.255 |
| 116.67.0.0/17 | 32,768 | 116.67.0.0 – 116.67.127.255 |
| 116.67.0.0/18 | 16,384 | 116.67.0.0 – 116.67.63.255 |
| 116.67.64.0/18 | 16,384 | 116.67.64.0 – 116.67.127.255 |
| 125.60.0.0/18 | 16,384 | 125.60.0.0 – 125.60.63.255 |
| 27.101.192.0/19 | 8,192 | 27.101.192.0 – 27.101.223.255 |
| 125.128.64.0/19 | 8,192 | 125.128.64.0 – 125.128.95.255 |
| 203.238.160.0/20 | 4,096 | 203.238.160.0 – 203.238.175.255 |
| 222.111.248.0/21 | 2,048 | 222.111.248.0 – 222.111.255.255 |
| 27.101.220.0/22 | 1,024 | 27.101.220.0 – 27.101.223.255 |
| 168.126.120.0/22 | 1,024 | 168.126.120.0 – 168.126.123.255 |
| 211.42.72.0/22 | 1,024 | 211.42.72.0 – 211.42.75.255 |
| 222.111.168.0/22 | 1,024 | 222.111.168.0 – 222.111.171.255 |
| 203.233.54.0/23 | 512 | 203.233.54.0 – 203.233.55.255 |
| 203.233.56.0/23 | 512 | 203.233.56.0 – 203.233.57.255 |
| 203.242.0.0/23 | 512 | 203.242.0.0 – 203.242.1.255 |
| 211.42.84.0/23 | 512 | 211.42.84.0 – 211.42.85.255 |
| 27.101.10.0/24 | 256 | 27.101.10.0 – 27.101.10.255 |
| 27.101.11.0/24 | 256 | 27.101.11.0 – 27.101.11.255 |
| 27.101.12.0/24 | 256 | 27.101.12.0 – 27.101.12.255 |
| 27.101.13.0/24 | 256 | 27.101.13.0 – 27.101.13.255 |
| 27.101.14.0/24 | 256 | 27.101.14.0 – 27.101.14.255 |
| 27.101.15.0/24 | 256 | 27.101.15.0 – 27.101.15.255 |
| 27.101.16.0/24 | 256 | 27.101.16.0 – 27.101.16.255 |
27.101.0.0/16 152.99.0.0/16 116.67.0.0/17 116.67.0.0/18 116.67.64.0/18 125.60.0.0/18 27.101.192.0/19 125.128.64.0/19 203.238.160.0/20 222.111.248.0/21 27.101.220.0/22 168.126.120.0/22 211.42.72.0/22 222.111.168.0/22 203.233.54.0/23 203.233.56.0/23 203.242.0.0/23 211.42.84.0/23 27.101.10.0/24 27.101.11.0/24 27.101.12.0/24 27.101.13.0/24 27.101.14.0/24 27.101.15.0/24 27.101.16.0/24
The 25 largest of 497. The API and the database have all of them.
IPv6 prefixes
No IPv6 prefixes.
Query AS17841 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS17841&key=YOUR_API_KEY"Any address in its prefixes resolves to AS17841, with or without a key:
curl "https://api.ipapi.is/?q=27.101.0.1"