HomePrefix Lookup121.6.0.0/16

121.6.0.0/16

🇸🇬
IPv4APNICallocatedAS9506SINGTEL-FIBRE - Singtel Fibre Broadband RPKI Valid
CIDR
121.6.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇸🇬 Singapore
City
Jurong West
RIR
APNIC
Status
allocated
Allocated
5/23/2006

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
121.6.0.0/16AS9506SINGTEL-FIBRE - Singtel Fibre Broadband Valid
APNIC
6/13/2026

Covering Prefix

3 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
121.6.0.0/17AS9506SINGTEL-FIBRE - Singtel Fibre Broadband Valid—6/13/2026
121.6.128.0/17AS9506SINGTEL-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

3
OriginRegistryMaintainerModified
AS3758APNICMAINT-SG-SINGNET8/31/2022
AS9506APNICMAINT-SG-SINGNET8/25/2022
AS19905APNICMAINT-SG-SINGNET5/14/2026

More Specific Prefixes

100
PrefixASCountryStatus
121.6.70.0/24🇸🇬SGassigned
121.6.121.0/24🇸🇬SGassigned
121.6.122.0/24🇸🇬SGassigned
121.6.124.0/24🇸🇬SGassigned
121.6.126.0/24🇸🇬SGassigned
121.6.140.0/24🇸🇬SGassigned
121.6.43.0/24🇸🇬SGassigned
121.6.133.0/24🇸🇬SGassigned
121.6.179.0/24🇸🇬SGassigned
121.6.215.0/24🇸🇬SGassigned
121.6.101.0/24🇸🇬SGassigned
121.6.184.0/24🇸🇬SGassigned
121.6.33.0/24🇸🇬SGassigned
121.6.191.0/24🇸🇬SGassigned
121.6.251.0/24🇸🇬SGassigned
121.6.11.0/24🇸🇬SGassigned
121.6.14.0/24🇸🇬SGassigned
121.6.17.0/24🇸🇬SGassigned
121.6.25.0/24🇸🇬SGassigned
121.6.28.0/24🇸🇬SGassigned
121.6.41.0/24🇸🇬SGassigned
121.6.55.0/24🇸🇬SGassigned
121.6.72.0/24🇸🇬SGassigned
121.6.85.0/24🇸🇬SGassigned
121.6.88.0/24🇸🇬SGassigned
121.6.103.0/24🇸🇬SGassigned
121.6.106.0/24🇸🇬SGassigned
121.6.125.0/24🇸🇬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
121.6.63.0/24🇸🇬SGassigned
121.6.64.0/24🇸🇬SGassigned
121.6.107.0/24🇸🇬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
121.6.1.0/24🇸🇬SGassigned
121.6.2.0/24🇸🇬SGassigned
121.6.7.0/24🇸🇬SGassigned
121.6.9.0/24🇸🇬SGassigned
121.6.10.0/24🇸🇬SGassigned
121.6.12.0/24🇸🇬SGassigned
121.6.15.0/24🇸🇬SGassigned
121.6.16.0/24🇸🇬SGassigned
121.6.19.0/24🇸🇬SGassigned
121.6.20.0/24🇸🇬SGassigned
121.6.21.0/24🇸🇬SGassigned
121.6.22.0/24🇸🇬SGassigned
121.6.23.0/24🇸🇬SGassigned
121.6.24.0/24🇸🇬SGassigned
121.6.27.0/24🇸🇬SGassigned
121.6.30.0/24🇸🇬SGassigned
121.6.34.0/24🇸🇬SGassigned
121.6.35.0/24🇸🇬SGassigned
121.6.36.0/24🇸🇬SGassigned
121.6.38.0/24🇸🇬SGassigned
121.6.39.0/24🇸🇬SGassigned
121.6.42.0/24🇸🇬SGassigned
121.6.44.0/24🇸🇬SGassigned
121.6.46.0/24🇸🇬SGassigned
121.6.47.0/24🇸🇬SGassigned
121.6.48.0/24🇸🇬SGassigned
121.6.50.0/24🇸🇬SGassigned
121.6.51.0/24🇸🇬SGassigned
121.6.52.0/24🇸🇬SGassigned
121.6.53.0/24🇸🇬SGassigned
121.6.54.0/24🇸🇬SGassigned
121.6.56.0/24🇸🇬SGassigned
121.6.58.0/24🇸🇬SGassigned
121.6.65.0/24🇸🇬SGassigned
121.6.66.0/24🇸🇬SGassigned
121.6.69.0/24🇸🇬SGassigned
121.6.74.0/24🇸🇬SGassigned
121.6.77.0/24🇸🇬SGassigned
121.6.78.0/24🇸🇬SGassigned
121.6.79.0/24🇸🇬SGassigned
121.6.80.0/24🇸🇬SGassigned
121.6.81.0/24🇸🇬SGassigned
121.6.82.0/24🇸🇬SGassigned
121.6.83.0/24🇸🇬SGassigned
121.6.86.0/24🇸🇬SGassigned
121.6.59.0/24🇸🇬SGassigned
Origin ASN
AS9506
SINGTEL-FIBRE - Singtel Fibre Broadband
Geolocation
Country🇸🇬SingaporeSG
CityJurong West
Coordinates1.3503, 103.7230 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/121.6.0.0/16

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

curl -s "https://api.ipctl.io/v1/prefix/121.6.0.0/16" | jq
External Links
RIPEstat Hurricane Electric BGP