HomePrefix Lookup121.127.128.0/17

121.127.128.0/17

🇰🇷
IPv4RIPEassignedNo ROA
CIDR
121.127.128.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇰🇷 South Korea
City
Seoul (Toegye-ro)
RIR
RIPE
Status
assigned
Allocated
-

Announced BGP Routes

0 of 0 routes
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
This prefix is not currently announced in BGP. See covering prefix below.

Covering Prefix

30 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
121.127.128.0/18AS9756SKB-CHEONANVITSSEN-AS-KR-KR - SK Broadband Co LtdNo ROA—6/13/2026
121.127.192.0/19AS7718TransACT-SDN-AS - TransACT Capital Communications Pty LimitedNo ROA—6/13/2026
121.127.224.0/19AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.220.0/22AS7718TransACT-SDN-AS - TransACT Capital Communications Pty LimitedNo ROA—6/13/2026
121.127.218.0/23AS7718TransACT-SDN-AS - TransACT Capital Communications Pty LimitedNo ROA—6/13/2026
121.127.216.0/23AS7718TransACT-SDN-AS - TransACT Capital Communications Pty LimitedNo ROA—6/13/2026
121.127.134.0/24AS9756SKB-CHEONANVITSSEN-AS-KR-KR - SK Broadband Co LtdNo ROA—6/13/2026
121.127.161.0/24AS9756SKB-CHEONANVITSSEN-AS-KR-KR - SK Broadband Co LtdNo ROA—6/13/2026
121.127.225.0/24AS64050BGNL-HK - BGP Network Limited Valid—6/13/2026
121.127.233.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.234.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.241.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.244.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.245.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.246.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.248.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.249.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.250.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.252.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.253.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.254.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.255.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.224.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.226.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.227.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.228.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.229.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.230.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.231.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026
121.127.232.0/24AS152194CTGSERVERLIMITED-AS-AP - CTG Server Limited Valid—6/13/2026

More Specific Prefixes

42
PrefixASCountryStatus
121.127.128.0/18AS9756🇰🇷KRallocated
121.127.224.0/19AS152194🇭🇰HKallocated
121.127.192.0/19AS7718🇦🇺AUallocated
121.127.208.0/21🇦🇺AUallocated
121.127.200.0/21🇦🇺AUallocated
121.127.192.0/22🇦🇺AUallocated
121.127.196.0/22🇦🇺AUallocated
121.127.220.0/22AS7718🇦🇺AUallocated
121.127.218.0/23AS7718🇦🇺AUallocated
121.127.216.0/23AS7718🇦🇺AUallocated
121.127.231.0/24AS152194🇭🇰HKassigned
121.127.232.0/24AS152194🇭🇰HKassigned
121.127.234.0/24AS152194🇭🇰HKassigned
121.127.235.0/24🇭🇰HKassigned
121.127.236.0/24🇭🇰HKassigned
121.127.237.0/24🇭🇰HKassigned
121.127.242.0/24🇭🇰HKassigned
121.127.244.0/24AS152194🇭🇰HKassigned
121.127.245.0/24AS152194🇭🇰HKassigned
121.127.255.0/24AS152194🇭🇰HKassigned
121.127.248.0/24AS152194🇭🇰HKassigned
121.127.252.0/24AS152194🇭🇰HKassigned
121.127.253.0/24AS152194🇭🇰HKassigned
121.127.254.0/24AS152194🇭🇰HKassigned
121.127.224.0/24AS152194🇭🇰HKassigned
121.127.226.0/24AS152194🇭🇰HKassigned
121.127.227.0/24AS152194🇭🇰HKassigned
121.127.229.0/24AS152194🇭🇰HKassigned
121.127.233.0/24AS152194🇭🇰HKassigned
121.127.240.0/24🇭🇰HKassigned
121.127.241.0/24AS152194🇭🇰HKassigned
121.127.243.0/24🇭🇰HKassigned
121.127.246.0/24AS152194🇭🇰HKassigned
121.127.225.0/24AS64050🇭🇰HKassigned
121.127.238.0/24🇭🇰HKassigned
121.127.239.0/24🇭🇰HKassigned
121.127.247.0/24🇭🇰HKassigned
121.127.250.0/24AS152194🇭🇰HKassigned
121.127.251.0/24🇭🇰HKassigned
121.127.249.0/24AS152194🇭🇰HKassigned
121.127.228.0/24AS152194🇭🇰HKassigned
121.127.230.0/24AS152194🇭🇰HKassigned
Geolocation
Country🇰🇷South KoreaKR
RegionSeoul
CitySeoul (Toegye-ro)
Coordinates37.5614, 126.9960 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/121.127.128.0/17

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

curl -s "https://api.ipctl.io/v1/prefix/121.127.128.0/17" | jq
External Links
RIPEstat Hurricane Electric BGP