202.120.144.0/20 - BGP Prefix (MOAS)
IPv4APNICannouncedMOASNo ROA
CIDR
202.120.144.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇨🇳 China
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
2 of 2 routesMOAS - 2 origin ASNs
RPKI:
IRR:
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| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 202.120.144.0/20 | AS4538 ERX-CERNET-BKB - China Education and Research Network Center | No ROA | - | 2026-10-14 |
| 202.120.144.0/20 | AS24364 CNGI-SH-IX-AS-AP - CERNET2 IX at Shanghai Jiaotong University | No ROA | - | 2026-10-14 |
Related Announcements
5 less-specific, 2 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 202.120.0.0/15 | AS4538 ERX-CERNET-BKB - China Education and Research Network Center | No ROA | - | 2026-10-14 |
| 202.120.0.0/16 | AS4538 ERX-CERNET-BKB - China Education and Research Network Center | No ROA | - | 2026-10-14 |
| 202.120.0.0/16 | AS24364 CNGI-SH-IX-AS-AP - CERNET2 IX at Shanghai Jiaotong University | No ROA | - | 2026-10-14 |
| 202.120.128.0/17 | AS4538 ERX-CERNET-BKB - China Education and Research Network Center | No ROA | - | 2026-10-14 |
| 202.120.128.0/17 | AS24364 CNGI-SH-IX-AS-AP - CERNET2 IX at Shanghai Jiaotong University | No ROA | - | 2026-10-14 |
| 202.120.146.0/24 | AS4538 ERX-CERNET-BKB - China Education and Research Network Center | Valid | - | 2026-10-14 |
| 202.120.146.0/24 | AS24364 CNGI-SH-IX-AS-AP - CERNET2 IX at Shanghai Jiaotong University | Invalid | - | 2026-10-14 |
Origin ASNs (2)
AS4538MOAS
ERX-CERNET-BKB - China Education and Research Network Center
AS24364MOAS
CNGI-SH-IX-AS-AP - CERNET2 IX at Shanghai Jiaotong University
Related Prefixes
Geolocation
Country🇨🇳ChinaCN
Coordinates35.8617, 104.1954 ↗
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 APNIC regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/202.120.144.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/202.120.144.0/20" | jq
External Links