216.123.0.0/17
🇺🇸CIDR
216.123.0.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇺🇸 United States
City
Denver (Central)
RIR
ARIN
Status
allocated
Allocated
11/20/1998
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 216.123.0.0/17 | AS6461ZAYO-6461 - Zayo Bandwidth | Valid | — | 6/1/2026 |
Covering Prefix
7 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 216.123.5.0/24 | AS7385ABUL-14-7385 - Allstream Business US, LLC | Valid | — | 6/1/2026 |
| 216.123.71.0/24 | AS15290ZAYO-CAN-15290 - Zayo Bandwidth | Valid | — | 6/1/2026 |
| 216.123.66.0/24 | AS15290ZAYO-CAN-15290 - Zayo Bandwidth | Valid | — | 6/1/2026 |
| 216.123.80.0/24 | AS15290ZAYO-CAN-15290 - Zayo Bandwidth | Valid | — | 6/1/2026 |
| 216.123.100.0/24 | AS19158ZAYOB-19158 - Zayo Bandwidth | Valid | — | 6/1/2026 |
| 216.123.107.0/24 | AS29731ING-BANK-OF-CANADA---MULTI-HOMED - ING Bank of Canada | Valid | — | 6/1/2026 |
| 216.123.67.0/24 | AS53338ITCI - ITCI Corporation | Valid | — | 6/1/2026 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 216.123.0.0/17 | AS6461 | /17 | arin |
Origin ASN
AS6461
ZAYO-6461 - Zayo Bandwidth
Geolocation
API
Open https://api.ipctl.io/v1/prefix/216.123.0.0/17Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/216.123.0.0/17" | jq
External Links