166.111.128.0/18 - BGP Prefix (MOAS)
IPv4APNICannouncedMOASNo ROA
CIDR
166.111.128.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇨🇳 China
City
Haidian (Haidian Qu)
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 |
|---|---|---|---|---|
| 166.111.128.0/18 | AS4538 ERX-CERNET-BKB - China Education and Research Network Center | No ROA | - | 2026-10-13 |
| 166.111.128.0/18 | AS24348 CNGI-BJ-IX2-AS-AP - CERNET2 IX at Tsinghua University | No ROA | - | 2026-10-13 |
Covering Prefix
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 166.111.0.0/16 | AS4538 ERX-CERNET-BKB - China Education and Research Network Center | No ROA | - | 2026-10-13 |
| 166.111.128.0/17 | AS4538 ERX-CERNET-BKB - China Education and Research Network Center | No ROA | - | 2026-10-13 |
| 166.111.128.0/17 | AS24348 CNGI-BJ-IX2-AS-AP - CERNET2 IX at Tsinghua University | No ROA | - | 2026-10-13 |
Origin ASNs (2)
AS4538MOAS
ERX-CERNET-BKB - China Education and Research Network Center
AS24348MOAS
CNGI-BJ-IX2-AS-AP - CERNET2 IX at Tsinghua University
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 APNIC regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/166.111.128.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/166.111.128.0/18" | jq
External Links