128.33.0.0/16
🇺🇸CIDR
128.33.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Cambridge (Cambridge Highlands)
RIR
ARIN
Status
allocated
Allocated
6/28/1983
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 128.33.0.0/16 | AS1856DISN-PILOTNET2 - RTX BBN Technologies, Inc. | No ROA | — | 5/31/2026 |
Covering Prefix
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 128.33.194.0/24 | AS1856DISN-PILOTNET2 - RTX BBN Technologies, Inc. | No ROA | — | 5/31/2026 |
| 128.33.25.0/24 | AS11488BBN-GW - BBN Technologies Corp. | No ROA | — | 5/31/2026 |
| 128.33.255.0/24 | AS11488BBN-GW - BBN Technologies Corp. | No ROA | — | 5/31/2026 |
Geolocation
Country🇺🇸United StatesUS
RegionMassachusetts
CityCambridge (Cambridge Highlands)
Coordinates42.3897, -71.1475 ↗
API
Open https://api.ipctl.io/v1/prefix/128.33.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/128.33.0.0/16" | jq
External Links