HomePrefix Lookup203.64.0.0/16

203.64.0.0/16

🇹🇼
IPv4APNICallocatedAS1659ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center RPKI Valid
CIDR
203.64.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇹🇼 Taiwan
City
Neihu District
RIR
APNIC
Status
allocated
Allocated
12/14/1994

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
203.64.0.0/16AS1659ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center Valid
RADB
5/31/2026

Covering Prefix

47 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
203.64.128.0/21AS1659ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center Invalid—5/31/2026
203.64.8.0/21AS1659ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center Valid—5/31/2026
203.64.120.0/21AS1659ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center Invalid—5/31/2026
203.64.176.0/21AS9916NCTU-TW - National Yang Ming Chiao Tung University Valid—5/31/2026
203.64.80.0/21AS17711NDHU-TW - National Dong Hwa University Valid—5/31/2026
203.64.88.0/21AS17713NSYSU-TW - Ministry of Education Computer Center Valid—5/31/2026
203.64.96.0/21AS17713NSYSU-TW - Ministry of Education Computer Center Valid—5/31/2026
203.64.128.0/21AS17713NSYSU-TW - Ministry of Education Computer Center Valid—5/31/2026
203.64.120.0/21AS17713NSYSU-TW - Ministry of Education Computer Center Valid—5/31/2026
203.64.56.0/21AS17713NSYSU-TW - Ministry of Education Computer Center Valid—5/31/2026
203.64.0.0/21AS17716NTU-TW - National Taiwan University Valid—5/31/2026
203.64.248.0/22AS9916NCTU-TW - National Yang Ming Chiao Tung University Invalid—5/31/2026
203.64.184.0/22AS9916NCTU-TW - National Yang Ming Chiao Tung University Valid—5/31/2026
203.64.172.0/22AS9916NCTU-TW - National Yang Ming Chiao Tung University Valid—5/31/2026
203.64.40.0/22AS17711NDHU-TW - National Dong Hwa University Valid—5/31/2026
203.64.36.0/22AS17711NDHU-TW - National Dong Hwa University Invalid—5/31/2026
203.64.76.0/22AS17711NDHU-TW - National Dong Hwa University Valid—5/31/2026
203.64.168.0/22AS17713NSYSU-TW - Ministry of Education Computer Center Valid—5/31/2026
203.64.48.0/22AS17716NTU-TW - National Taiwan University Valid—5/31/2026
203.64.232.0/22AS18177NCKU-TW - National Cheng Kung University Valid—5/31/2026
203.64.158.0/23AS1659ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center Valid—5/31/2026
203.64.44.0/23AS1659ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center Valid—5/31/2026
203.64.246.0/23AS9916NCTU-TW - National Yang Ming Chiao Tung University Invalid—5/31/2026
203.64.34.0/23AS17711NDHU-TW - National Dong Hwa University Valid—5/31/2026
203.64.64.0/23AS17713NSYSU-TW - Ministry of Education Computer Center Valid—5/31/2026
203.64.54.0/23AS17713NSYSU-TW - Ministry of Education Computer Center Valid—5/31/2026
203.64.166.0/23AS17713NSYSU-TW - Ministry of Education Computer Center Valid—5/31/2026
203.64.138.0/23AS17716NTU-TW - National Taiwan University Valid—5/31/2026
203.64.46.0/23AS17716NTU-TW - National Taiwan University Valid—5/31/2026
203.64.208.0/23AS17716NTU-TW - National Taiwan University Valid—5/31/2026
203.64.252.0/23AS17716NTU-TW - National Taiwan University Valid—5/31/2026
203.64.236.0/23AS18177NCKU-TW - National Cheng Kung University Valid—5/31/2026
203.64.230.0/23AS18177NCKU-TW - National Cheng Kung University Valid—5/31/2026
203.64.20.0/23AS18177NCKU-TW - National Cheng Kung University Valid—5/31/2026
203.64.18.0/23AS18177NCKU-TW - National Cheng Kung University Valid—5/31/2026
203.64.191.0/24AS1659ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center Valid—5/31/2026
203.64.238.0/24AS1659ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center Invalid—5/31/2026
203.64.155.0/24AS1659ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center Valid—5/31/2026
203.64.207.0/24AS1659ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center Invalid—5/31/2026
203.64.22.0/24AS17712CCU-TW - National Chung Cheng University Valid—5/31/2026
203.64.153.0/24AS17716NTU-TW - National Taiwan University Valid—5/31/2026
203.64.52.0/24AS17716NTU-TW - National Taiwan University Valid—5/31/2026
203.64.189.0/24AS17716NTU-TW - National Taiwan University Valid—5/31/2026
203.64.207.0/24AS17716NTU-TW - National Taiwan University Valid—5/31/2026
203.64.228.0/24AS17716NTU-TW - National Taiwan University Valid—5/31/2026
203.64.154.0/24AS17716NTU-TW - National Taiwan University Valid—5/31/2026
203.64.53.0/24AS18177NCKU-TW - National Cheng Kung University Valid—5/31/2026

RPKI ROAs

1
PrefixOriginMax LengthTrust Anchor
203.64.0.0/16AS1659/16apnic

IRR Route Objects

1
OriginRegistryMaintainerModified
AS1659RADBMAINT-AS1770911/13/2023
Origin ASN
AS1659
ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center
Geolocation
Country🇹🇼TaiwanTW
RegionTaiwan
CityNeihu District
Coordinates25.0689, 121.5910 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/203.64.0.0/16

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

curl -s "https://api.ipctl.io/v1/prefix/203.64.0.0/16" | jq
External Links
RIPEstat Hurricane Electric BGP