147.253.208.0/20
🇺🇸CIDR
147.253.208.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇺🇸 United States
City
Bethesda
RIR
ARIN
Status
allocated
Allocated
6/12/2018
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 147.253.208.0/20 | AS23528SPARKPOST - Bird.com Inc. | No ROA | RADB | 5/31/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 147.253.220.0/23 | AS23528SPARKPOST - Bird.com Inc. | No ROA | — | 5/31/2026 |
| 147.253.222.0/24 | AS23528SPARKPOST - Bird.com Inc. | No ROA | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS23528 | RADB | MAINT-AS23528 | 11/13/2023 |
Origin ASN
AS23528
SPARKPOST - Bird.com Inc.
Geolocation
API
Open https://api.ipctl.io/v1/prefix/147.253.208.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/147.253.208.0/20" | jq
External Links