163.237.0.0/16
🇺🇸CIDR
163.237.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Chicago
RIR
ARIN
Status
allocated
Allocated
9/9/1992
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 163.237.0.0/16 | AS19255YOUR-ORG-INC-NA - YOUR.ORG, INC. | No ROA | RADB | 6/1/2026 |
Covering Prefix
8 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 163.237.0.0/18 | AS19255YOUR-ORG-INC-NA - YOUR.ORG, INC. | No ROA | — | 6/1/2026 |
| 163.237.208.0/24 | AS13331METAPEER-INC - MetaPeer | No ROA | — | 6/1/2026 |
| 163.237.210.0/24 | AS13331METAPEER-INC - MetaPeer | No ROA | — | 6/1/2026 |
| 163.237.210.0/24 | AS19255YOUR-ORG-INC-NA - YOUR.ORG, INC. | No ROA | — | 6/1/2026 |
| 163.237.222.0/24 | AS19255YOUR-ORG-INC-NA - YOUR.ORG, INC. | No ROA | — | 6/1/2026 |
| 163.237.223.0/24 | AS19255YOUR-ORG-INC-NA - YOUR.ORG, INC. | No ROA | — | 6/1/2026 |
| 163.237.224.0/24 | AS19255YOUR-ORG-INC-NA - YOUR.ORG, INC. | No ROA | — | 6/1/2026 |
| 163.237.225.0/24 | AS19255YOUR-ORG-INC-NA - YOUR.ORG, INC. | No ROA | — | 6/1/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS19255 | RADB | MAINT-AS19255 | 11/13/2023 |
Origin ASN
AS19255
YOUR-ORG-INC-NA - YOUR.ORG, INC.
Geolocation
API
Open https://api.ipctl.io/v1/prefix/163.237.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/163.237.0.0/16" | jq
External Links