104.243.208.0/21
🇺🇸IPv4ARINallocated RPKI Valid
CIDR
104.243.208.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Boston
RIR
ARIN
Status
allocated
Allocated
9/28/2016
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 |
|---|---|---|---|---|
| 104.243.210.0/24 | AS6079RCN-AS - RCN | Valid | — | 5/31/2026 |
| 104.243.208.0/24 | AS7015COMCAST-7015 - Comcast Cable Communications, LLC | Valid | — | 5/31/2026 |
| 104.243.213.0/24 | AS9009M247 M247 Europe SRL | Valid | — | 5/31/2026 |
| 104.243.209.0/24 | AS36601TNT - Terra Nova Telecom, Inc. | Valid | — | 5/31/2026 |
| 104.243.215.0/24 | AS212238CDNEXT Datacamp Limited | Valid | — | 5/31/2026 |
| 104.243.212.0/24 | AS212238CDNEXT Datacamp Limited | Valid | — | 5/31/2026 |
| 104.243.214.0/24 | AS212238CDNEXT Datacamp Limited | Valid | — | 5/31/2026 |
| 104.243.211.0/24 | AS398852NEXTOR-TELECOM - Nextor Telecom LLC | Valid | — | 5/31/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/104.243.208.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/104.243.208.0/21" | jq
External Links