72.163.0.0/16
🇺🇸CIDR
72.163.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Richardson
RIR
ARIN
Status
allocated
Allocated
10/24/2006
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 72.163.0.0/16 | AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. | Valid | ARINRADB | 5/31/2026 |
Covering Prefix
11 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 72.163.0.0/18 | AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. | Valid | — | 5/31/2026 |
| 72.163.128.0/18 | AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. | Valid | — | 5/31/2026 |
| 72.163.96.0/19 | AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. | Valid | — | 5/31/2026 |
| 72.163.192.0/19 | AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. | Valid | — | 5/31/2026 |
| 72.163.224.0/19 | AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. | Valid | — | 5/31/2026 |
| 72.163.64.0/20 | AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. | Valid | — | 5/31/2026 |
| 72.163.80.0/20 | AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. | Valid | — | 5/31/2026 |
| 72.163.248.0/22 | AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. | Valid | — | 5/31/2026 |
| 72.163.240.0/23 | AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. | Valid | — | 5/31/2026 |
| 72.163.7.0/24 | AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. | Valid | — | 5/31/2026 |
| 72.163.4.0/24 | AS109CISCOSYSTEMS - CISCO SYSTEMS, INC. | Valid | — | 5/31/2026 |
Origin ASN
AS109
CISCOSYSTEMS - CISCO SYSTEMS, INC.
Geolocation
API
Open https://api.ipctl.io/v1/prefix/72.163.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/72.163.0.0/16" | jq
External Links