HomePrefix Lookup123.205.128.0/19

123.205.128.0/19

🇹🇼
IPv4APNICannouncedAS131602HYA - Hsin Yeong An Cable TV Co., Ltd. RPKI Valid
CIDR
123.205.128.0/19
IP Version
IPv4
Addresses
8.1K
Mask
/19 (255.255.224.0)
Country
🇹🇼 Taiwan
City
Yongkang District
RIR
APNIC
Status
announced
Allocated
-

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
123.205.128.0/19AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid
RADB
6/1/2026

Covering Prefix

29 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
123.204.0.0/15AS4780SEEDNET - Digital United Inc. Valid—6/1/2026
123.205.0.0/16AS4780SEEDNET - Digital United Inc. Valid—6/1/2026
123.205.128.0/18AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.133.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.134.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.135.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.136.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.137.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.138.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.139.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.141.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.142.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.143.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.144.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.145.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.146.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.147.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.148.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.150.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.151.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.154.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.155.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.156.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.157.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.158.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.159.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.128.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.129.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026
123.205.130.0/24AS131602HYA - Hsin Yeong An Cable TV Co., Ltd. Valid—6/1/2026

RPKI ROAs

6
PrefixOriginMax LengthTrust Anchor
123.205.128.0/18AS131602/24apnic
123.205.128.0/17AS4780/24apnic
123.205.0.0/16AS4780/24apnic
123.205.0.0/16AS9919/24apnic
123.204.0.0/15AS4780/24apnic
123.204.0.0/15AS9919/24apnic

IRR Route Objects

2
OriginRegistryMaintainerModified
AS4780RADBMAINT-AS47803/11/2026
AS131602RADBMAINT-AS47803/11/2026
Origin ASN
AS131602
HYA - Hsin Yeong An Cable TV Co., Ltd.
Geolocation
Country🇹🇼TaiwanTW
RegionTaiwan
CityYongkang District
Coordinates23.0244, 120.2560 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/123.205.128.0/19

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

curl -s "https://api.ipctl.io/v1/prefix/123.205.128.0/19" | jq
External Links
RIPEstat Hurricane Electric BGP