123.136.64.0/21
🇸🇬CIDR
123.136.64.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇸🇬 Singapore
RIR
APNIC
Status
allocated
Allocated
2/27/2007
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| This prefix is not currently announced in BGP. See covering prefix below. | ||||
Covering Prefix
8 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 123.136.64.0/24 | AS23767A-STAR-AS-AP - A-STAR | No ROA | — | 5/31/2026 |
| 123.136.65.0/24 | AS23767A-STAR-AS-AP - A-STAR | No ROA | — | 5/31/2026 |
| 123.136.66.0/24 | AS23767A-STAR-AS-AP - A-STAR | No ROA | — | 5/31/2026 |
| 123.136.67.0/24 | AS23767A-STAR-AS-AP - A-STAR | No ROA | — | 5/31/2026 |
| 123.136.68.0/24 | AS23767A-STAR-AS-AP - A-STAR | No ROA | — | 5/31/2026 |
| 123.136.69.0/24 | AS23767A-STAR-AS-AP - A-STAR | No ROA | — | 5/31/2026 |
| 123.136.70.0/24 | AS23767A-STAR-AS-AP - A-STAR | No ROA | — | 5/31/2026 |
| 123.136.71.0/24 | AS23767A-STAR-AS-AP - A-STAR | No ROA | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS23767 | APNIC | MAINT-A-STAR-SG | 2/14/2019 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 123.136.67.0/24 | AS23767 | 🇸🇬SG | assigned |
| 123.136.66.0/24 | AS23767 | 🇸🇬SG | assigned |
| 123.136.68.0/24 | AS23767 | 🇸🇬SG | assigned |
| 123.136.70.0/24 | AS23767 | 🇸🇬SG | assigned |
| 123.136.64.0/24 | AS23767 | 🇸🇬SG | assigned |
| 123.136.69.0/24 | AS23767 | 🇸🇬SG | assigned |
| 123.136.71.0/24 | AS23767 | 🇸🇬SG | assigned |
| 123.136.65.0/24 | AS23767 | 🇸🇬SG | assigned |
Origin ASN
AS23767
A-STAR-AS-AP - A-STAR
Geolocation
Country🇸🇬SingaporeSG
Coordinates1.3521, 103.8198 ↗
API
Open https://api.ipctl.io/v1/prefix/123.136.64.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/123.136.64.0/21" | jq
External Links