66.232.136.0/21 - SEJONGTELECOM KR SEJONG NETWORKS (AS9848)
CIDR
66.232.136.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇰🇷 South Korea
City
Seongnam-si (Yatap-dong)
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 66.232.136.0/21 | AS9848 SEJONGTELECOM-AS-KR SEJONG NETWORKS | No ROA | Other IRR | 2026-10-11 |
More-Specific Announcements
6 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 66.232.136.0/22 | AS9952 HOSTWAY-AS-KR Hostway IDC | No ROA | - | 2026-10-11 |
| 66.232.140.0/22 | AS9848 SEJONGTELECOM-AS-KR SEJONG NETWORKS | No ROA | - | 2026-10-11 |
| 66.232.140.0/24 | AS9952 HOSTWAY-AS-KR Hostway IDC | No ROA | - | 2026-10-11 |
| 66.232.141.0/24 | AS9952 HOSTWAY-AS-KR Hostway IDC | No ROA | - | 2026-10-11 |
| 66.232.142.0/24 | AS9952 HOSTWAY-AS-KR Hostway IDC | No ROA | - | 2026-10-11 |
| 66.232.143.0/24 | AS9952 HOSTWAY-AS-KR Hostway IDC | No ROA | - | 2026-10-11 |
Transfer History
Registry transfers of 66.232.136.0/21, blocks inside it, or blocks containing it.
- 66.232.128.0/19M&A ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 66.232.128.0/19 | M&A |
Related Prefixes
Geolocation
Learn more
- RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
- RPKI validatorCheck ROA coverage for any prefix or ASN
- What is BGP?How prefixes are announced and routed
- More-specific prefixesGlossary: covering and more-specific routes
- IPv4 transfers in the ARIN regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/66.232.136.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/66.232.136.0/21" | jq
External Links