166.42.0.0/15
🇺🇸IPv4ARINallocatedNo ROA
CIDR
166.42.0.0/15
IP Version
IPv4
Addresses
131K
Mask
/15 (255.254.0.0)
Country
🇺🇸 United States
City
Ashburn
RIR
ARIN
Status
allocated
Allocated
3/24/1993
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
5 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 166.32.0.0/12 | AS3371MCI-ASN - Verizon Business | No ROA | — | 5/31/2026 |
| 166.43.0.0/16 | AS3371MCI-ASN - Verizon Business | No ROA | — | 5/31/2026 |
| 166.43.144.0/20 | AS3372MCI-ASN - Verizon Business | No ROA | — | 5/31/2026 |
| 166.43.160.0/20 | AS3372MCI-ASN - Verizon Business | No ROA | — | 5/31/2026 |
| 166.43.176.0/20 | AS3372MCI-ASN - Verizon Business | No ROA | — | 5/31/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/166.42.0.0/15Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/166.42.0.0/15" | jq
External Links