HomePrefix Lookup42.245.0.0/16

42.245.0.0/16

🇨🇳
IPv4APNICannouncedAS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA
CIDR
42.245.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇨🇳 China
City
Nanjing
RIR
APNIC
Status
announced
Allocated
-

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
42.245.0.0/16AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026

Covering Prefix

70 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
42.245.192.0/18AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.192.0/18AS133111CNT-northChina - CERNET New Technology Co., LtdNo ROA—5/31/2026
42.245.232.0/22AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.204.0/22AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.200.0/22AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.248.0/22AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.200.0/22AS133111CNT-northChina - CERNET New Technology Co., LtdNo ROA—5/31/2026
42.245.204.0/22AS133111CNT-northChina - CERNET New Technology Co., LtdNo ROA—5/31/2026
42.245.248.0/22AS133512CERNEWTECH-ZHENGZHOU - CERNET New Technology Co., LtdNo ROA—5/31/2026
42.245.232.0/22AS133513CERNEWTECH-CHENGDU - CERNET New Technology Co., LtdNo ROA—5/31/2026
42.245.252.0/23AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.252.0/23AS133512CERNEWTECH-ZHENGZHOU - CERNET New Technology Co., LtdNo ROA—5/31/2026
42.245.216.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.210.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.211.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.212.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.209.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.217.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.219.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.203.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.204.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.205.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.192.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.193.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.195.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.196.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.197.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.198.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.199.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.220.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.221.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.222.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.223.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.224.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.231.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.232.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.236.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.237.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.247.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.253.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.254.0/24AS4538ERX-CERNET-BKB - China Education and Research Network CenterNo ROA—5/31/2026
42.245.216.0/24AS133111CNT-northChina - CERNET New Technology Co., LtdNo ROA—5/31/2026
42.245.205.0/24AS133111CNT-northChina - CERNET New Technology Co., LtdNo ROA—5/31/2026
42.245.204.0/24AS133111CNT-northChina - CERNET New Technology Co., LtdNo ROA—5/31/2026
42.245.196.0/24AS133111CNT-northChina - CERNET New Technology Co., LtdNo ROA—5/31/2026
42.245.221.0/24AS133111CNT-northChina - CERNET New Technology Co., LtdNo ROA—5/31/2026
42.245.197.0/24AS133111CNT-northChina - CERNET New Technology Co., LtdNo ROA—5/31/2026
42.245.192.0/24AS133111CNT-northChina - CERNET New Technology Co., LtdNo ROA—5/31/2026
42.245.212.0/24AS133111CNT-northChina - CERNET New Technology Co., LtdNo ROA—5/31/2026
42.245.193.0/24AS133111CNT-northChina - CERNET New Technology Co., LtdNo ROA—5/31/2026
42.245.199.0/24AS133111CNT-northChina - CERNET New Technology Co., LtdNo ROA—5/31/2026
42.245.203.0/24AS133111CNT-northChina - CERNET New Technology Co., LtdNo ROA—5/31/2026
42.245.219.0/24AS133111CNT-northChina - CERNET New Technology Co., LtdNo ROA—5/31/2026
42.245.220.0/24AS133111CNT-northChina - CERNET New Technology Co., LtdNo ROA—5/31/2026
42.245.209.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—5/31/2026
42.245.198.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—5/31/2026
42.245.236.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—5/31/2026
42.245.254.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—5/31/2026
42.245.237.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—5/31/2026
42.245.253.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—5/31/2026
42.245.222.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—5/31/2026
42.245.247.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—5/31/2026
42.245.223.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—5/31/2026
42.245.224.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—5/31/2026
42.245.211.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—5/31/2026
42.245.231.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—5/31/2026
42.245.217.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—5/31/2026
42.245.195.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—5/31/2026
42.245.210.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—5/31/2026
42.245.232.0/24AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTDNo ROA—5/31/2026

More Specific Prefixes

19
PrefixASCountryStatus
42.245.192.0/20🇨🇳CNassigned
42.245.208.0/20🇨🇳CNassigned
42.245.224.0/22🇨🇳CNassigned
42.245.228.0/22🇨🇳CNassigned
42.245.232.0/22AS4538🇨🇳CNassigned
42.245.236.0/22🇨🇳CNassigned
42.245.242.0/23🇨🇳CNassigned
42.245.240.0/23🇨🇳CNassigned
42.245.244.0/23🇨🇳CNassigned
42.245.253.0/24AS4538🇨🇳CNassigned
42.245.248.0/24🇨🇳CNassigned
42.245.249.0/24🇨🇳CNassigned
42.245.246.0/24🇨🇳CNassigned
42.245.247.0/24AS4538🇨🇳CNassigned
42.245.250.0/24🇨🇳CNassigned
42.245.254.0/24AS4538🇨🇳CNassigned
42.245.251.0/24🇨🇳CNassigned
42.245.255.0/24🇨🇳CNassigned
42.245.252.0/24🇨🇳CNassigned
Origin ASN
AS4538
ERX-CERNET-BKB - China Education and Research Network Center
Geolocation
Country🇨🇳ChinaCN
RegionJiangsu
CityNanjing
Coordinates32.0584, 118.7960 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/42.245.0.0/16

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

curl -s "https://api.ipctl.io/v1/prefix/42.245.0.0/16" | jq
External Links
RIPEstat Hurricane Electric BGP