Network 203.250.48.0/21
Network Information
| Prefix | 203.250.48.0/21 |
|---|---|
| Announced As | 203.250.0.0/18 |
| Origin AS | AS1237 |
| CIDR | /21 |
| Total IPs | 2,048 |
| Usable IPs | 2,046 |
| IP Range | 203.250.48.0 - 203.250.55.255 |
| RPKI Status | NOT_FOUND # NO ROAS FOUND, OR RPKI VALIDATION NOT ENABLED FOR SOURCE |
| Registry | RADB |
| Last Modified | 2023-11-13 |
AS Looking Glass
BGP paths to 203.250.48.0/21 (origin on the right, matching graph above)
All 18 BGP Paths
Complete list of all observed paths (origin on the right)
Hostnames in this Network
Hostnames in AS
| smtp.cu.ac.kr |
| ns.cu.ac.kr |
| ns2.cu.ac.kr |
| cu.ac.kr |
| pc049215.cu.ac.kr |
| pc053127.cu.ac.kr |
| mail.osb.or.kr |
| silver.cu.ac.kr |
| www.cu.ac.kr |
| mmlab.cu.ac.kr |
| lib.cu.ac.kr |
| pc053254.cu.ac.kr |
| osb.or.kr |
| mail.cu.ac.kr |
Raw WHOIS Data
route: 203.250.0.0/18 descr: contact hspark@kordic.re.kr if necessary origin: AS1237 mnt-by: MAINT-AS3786 changed: yuncheol@bora.net 20011223 source: RADB last-modified: 2023-11-13T16:09:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.250.32.0/19 descr: REACH (Customer Route) tech-c: RRNOC1-REACH origin: AS9318 remarks: This auto-generated route object was created remarks: for a REACH customer route remarks: remarks: This route object was created because remarks: some REACH peers filter based on these objects remarks: and this route may be rejected remarks: if this object is not created. remarks: remarks: Please contact irr@team.telstra.com if you have any remarks: questions regarding this object. notify: irr@team.telstra.com mnt-by: MAINT-REACH-NOC changed: irr@team.telstra.com 20060428 source: REACH rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.250.32.0/19 descr: Daegu Catholic University origin: AS9868 mnt-by: MAINT-AS4766 changed: nw@kornet.net 20101203 source: RADB last-modified: 2023-11-13T16:15:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.250.48.0/21 origin: AS9868 descr: customer route mnt-by: MAINT-AS9318 changed: ipnoc@skbroadband.com 20251203 # 14:34 GMT source: RADB last-modified: 2025-12-03T14:34:51Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source