HomePrefix Lookup111.186.0.0/15

111.186.0.0/15

🇨🇳
IPv4APNICallocatedAS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA
CIDR
111.186.0.0/15
IP Version
IPv4
Addresses
131K
Mask
/15 (255.254.0.0)
Country
🇨🇳 China
City
Shanghai
RIR
APNIC
Status
allocated
Allocated
5/25/2009

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
111.186.0.0/15AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA
APNICRADB
6/1/2026

Covering Prefix

20 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
111.187.0.0/17AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
111.186.192.0/18AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
111.186.0.0/18AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
111.187.128.0/18AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
111.187.128.0/18AS24368CNGI-XMN-IX-AS-AP - CERNET2 IX at Xiamen UniversityNo ROA—6/1/2026
111.186.192.0/18AS138373CNGI-FZH-IX-AS-AP - CERNET2 regional IX at Fuzhou UniversityNo ROA—6/1/2026
111.186.0.0/19AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
111.186.32.0/19AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
111.186.64.0/19AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
111.186.96.0/19AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
111.187.0.0/19AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
111.186.32.0/19AS24364CNGI-SH-IX-AS-AP - CERNET2 IX at Shanghai Jiaotong UniversityNo ROA—6/1/2026
111.186.64.0/19AS24364CNGI-SH-IX-AS-AP - CERNET2 IX at Shanghai Jiaotong UniversityNo ROA—6/1/2026
111.186.0.0/19AS24364CNGI-SH-IX-AS-AP - CERNET2 IX at Shanghai Jiaotong UniversityNo ROA—6/1/2026
111.187.0.0/19AS24366CNGI-SH-IX3-AS-AP - CERNET2 IX at Tongji UniversityNo ROA—6/1/2026
111.186.96.0/19AS24366CNGI-SH-IX3-AS-AP - CERNET2 IX at Tongji UniversityNo ROA—6/1/2026
111.187.192.0/22AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
111.187.192.0/22AS24368CNGI-XMN-IX-AS-AP - CERNET2 IX at Xiamen UniversityNo ROA—6/1/2026
111.186.252.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026
111.186.199.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—6/1/2026

IRR Route Objects

2
OriginRegistryMaintainerModified
AS4538APNICMAINT-CERNET-AP7/10/2009
AS4538RADBMAINT-AS463711/13/2023
Origin ASN
AS4538
ERX-CERNET-BKB - China Education and Research Network Center
Geolocation
Country🇨🇳ChinaCN
RegionShanghai
CityShanghai
Coordinates31.2304, 121.4740 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/111.186.0.0/15

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/111.186.0.0/15" | jq
External Links
RIPEstat Hurricane Electric BGP