HomePrefix Lookup121.6.128.0/17

121.6.128.0/17

🇸🇬
IPv4APNICannouncedAS9506SINGTEL-FIBRE - Singtel Fibre Broadband RPKI Valid
CIDR
121.6.128.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇸🇬 Singapore
City
Woodlands
RIR
APNIC
Status
announced
Allocated
-

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
121.6.128.0/17AS9506SINGTEL-FIBRE - Singtel Fibre Broadband Valid
APNICRADB
6/13/2026

Covering Prefix

2 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
121.6.0.0/16AS9506SINGTEL-FIBRE - Singtel Fibre Broadband Valid—6/13/2026
121.6.252.0/24AS3758SINGNET - SingNet Valid—6/13/2026

RPKI ROAs

3
PrefixOriginMax LengthTrust Anchor
121.6.0.0/16AS3758/24apnic
121.6.0.0/16AS9506/24apnic
121.6.0.0/16AS19905/24apnic

IRR Route Objects

4
OriginRegistryMaintainerModified
AS3758APNICMAINT-SG-SINGNET3/6/2024
AS9506APNICMAINT-SG-SINGNET3/6/2024
AS19905APNICMAINT-SG-SINGNET5/14/2026
AS9506RADBMAINT-AS375811/13/2023

More Specific Prefixes

100
PrefixASCountryStatus
121.6.140.0/24🇸🇬SGassigned
121.6.133.0/24🇸🇬SGassigned
121.6.179.0/24🇸🇬SGassigned
121.6.215.0/24🇸🇬SGassigned
121.6.184.0/24🇸🇬SGassigned
121.6.191.0/24🇸🇬SGassigned
121.6.251.0/24🇸🇬SGassigned
121.6.134.0/24🇸🇬SGassigned
121.6.135.0/24🇸🇬SGassigned
121.6.137.0/24🇸🇬SGassigned
121.6.147.0/24🇸🇬SGassigned
121.6.152.0/24🇸🇬SGassigned
121.6.157.0/24🇸🇬SGassigned
121.6.166.0/24🇸🇬SGassigned
121.6.180.0/24🇸🇬SGassigned
121.6.186.0/24🇸🇬SGassigned
121.6.190.0/24🇸🇬SGassigned
121.6.200.0/24🇸🇬SGassigned
121.6.204.0/24🇸🇬SGassigned
121.6.206.0/24🇸🇬SGassigned
121.6.214.0/24🇸🇬SGassigned
121.6.239.0/24🇸🇬SGassigned
121.6.240.0/24🇸🇬SGassigned
121.6.246.0/24🇸🇬SGassigned
121.6.248.0/24🇸🇬SGassigned
121.6.249.0/24🇸🇬SGassigned
121.6.194.0/24🇸🇬SGassigned
121.6.209.0/24🇸🇬SGassigned
121.6.211.0/24🇸🇬SGassigned
121.6.221.0/24🇸🇬SGassigned
121.6.129.0/24🇸🇬SGassigned
121.6.130.0/24🇸🇬SGassigned
121.6.131.0/24🇸🇬SGassigned
121.6.132.0/24🇸🇬SGassigned
121.6.141.0/24🇸🇬SGassigned
121.6.142.0/24🇸🇬SGassigned
121.6.143.0/24🇸🇬SGassigned
121.6.144.0/24🇸🇬SGassigned
121.6.145.0/24🇸🇬SGassigned
121.6.148.0/24🇸🇬SGassigned
121.6.154.0/24🇸🇬SGassigned
121.6.159.0/24🇸🇬SGassigned
121.6.162.0/24🇸🇬SGassigned
121.6.163.0/24🇸🇬SGassigned
121.6.169.0/24🇸🇬SGassigned
121.6.172.0/24🇸🇬SGassigned
121.6.173.0/24🇸🇬SGassigned
121.6.175.0/24🇸🇬SGassigned
121.6.176.0/24🇸🇬SGassigned
121.6.177.0/24🇸🇬SGassigned
121.6.178.0/24🇸🇬SGassigned
121.6.181.0/24🇸🇬SGassigned
121.6.182.0/24🇸🇬SGassigned
121.6.183.0/24🇸🇬SGassigned
121.6.185.0/24🇸🇬SGassigned
121.6.187.0/24🇸🇬SGassigned
121.6.189.0/24🇸🇬SGassigned
121.6.192.0/24🇸🇬SGassigned
121.6.193.0/24🇸🇬SGassigned
121.6.195.0/24🇸🇬SGassigned
121.6.196.0/24🇸🇬SGassigned
121.6.197.0/24🇸🇬SGassigned
121.6.201.0/24🇸🇬SGassigned
121.6.202.0/24🇸🇬SGassigned
121.6.203.0/24🇸🇬SGassigned
121.6.205.0/24🇸🇬SGassigned
121.6.210.0/24🇸🇬SGassigned
121.6.213.0/24🇸🇬SGassigned
121.6.216.0/24🇸🇬SGassigned
121.6.218.0/24🇸🇬SGassigned
121.6.219.0/24🇸🇬SGassigned
121.6.220.0/24🇸🇬SGassigned
121.6.222.0/24🇸🇬SGassigned
121.6.223.0/24🇸🇬SGassigned
121.6.225.0/24🇸🇬SGassigned
121.6.226.0/24🇸🇬SGassigned
121.6.228.0/24🇸🇬SGassigned
121.6.229.0/24🇸🇬SGassigned
121.6.230.0/24🇸🇬SGassigned
121.6.231.0/24🇸🇬SGassigned
121.6.232.0/24🇸🇬SGassigned
121.6.234.0/24🇸🇬SGassigned
121.6.235.0/24🇸🇬SGassigned
121.6.236.0/24🇸🇬SGassigned
121.6.237.0/24🇸🇬SGassigned
121.6.238.0/24🇸🇬SGassigned
121.6.241.0/24🇸🇬SGassigned
121.6.242.0/24🇸🇬SGassigned
121.6.243.0/24🇸🇬SGassigned
121.6.244.0/24🇸🇬SGassigned
121.6.245.0/24🇸🇬SGassigned
121.6.247.0/24🇸🇬SGassigned
121.6.254.0/24🇸🇬SGassigned
121.6.136.0/24🇸🇬SGassigned
121.6.128.0/24🇸🇬SGassigned
121.6.138.0/24🇸🇬SGassigned
121.6.139.0/24🇸🇬SGassigned
121.6.146.0/24🇸🇬SGassigned
121.6.149.0/24🇸🇬SGassigned
121.6.150.0/24🇸🇬SGassigned
Origin ASN
AS9506
SINGTEL-FIBRE - Singtel Fibre Broadband
Geolocation
Country🇸🇬SingaporeSG
CityWoodlands
Coordinates1.4380, 103.7890 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/121.6.128.0/17

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

curl -s "https://api.ipctl.io/v1/prefix/121.6.128.0/17" | jq
External Links
RIPEstat Hurricane Electric BGP