128.42.0.0/16
🇺🇸CIDR
128.42.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Houston (University Place)
RIR
ARIN
Status
allocated
Allocated
12/2/1983
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 128.42.0.0/16 | AS8RICE-AS - Rice University | No ROA | RADB | 6/1/2026 |
Covering Prefix
4 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 128.42.199.0/24 | AS8RICE-AS - Rice University | No ROA | — | 6/1/2026 |
| 128.42.201.0/24 | AS8RICE-AS - Rice University | No ROA | — | 6/1/2026 |
| 128.42.204.0/24 | AS8RICE-AS - Rice University | No ROA | — | 6/1/2026 |
| 128.42.207.0/24 | AS8RICE-AS - Rice University | No ROA | — | 6/1/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS8 | RADB | MAINT-AS8 | 11/13/2023 |
Origin ASN
AS8
RICE-AS - Rice University
Geolocation
API
Open https://api.ipctl.io/v1/prefix/128.42.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/128.42.0.0/16" | jq
External Links