205.156.128.0/18
🇺🇸CIDR
205.156.128.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇺🇸 United States
City
Dallas
RIR
ARIN
Status
allocated
Allocated
3/13/1995
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
11 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 205.156.136.0/21 | AS17161MMC - Marsh Inc. | Valid | — | 5/31/2026 |
| 205.156.144.0/21 | AS17161MMC - Marsh Inc. | Valid | — | 5/31/2026 |
| 205.156.184.0/21 | AS21874MMC - MMC | Valid | — | 5/31/2026 |
| 205.156.128.0/22 | AS17161MMC - Marsh Inc. | Valid | — | 5/31/2026 |
| 205.156.152.0/22 | AS17161MMC - Marsh Inc. | Valid | — | 5/31/2026 |
| 205.156.160.0/23 | AS17161MMC - Marsh Inc. | Valid | — | 5/31/2026 |
| 205.156.132.0/23 | AS17161MMC - Marsh Inc. | Valid | — | 5/31/2026 |
| 205.156.135.0/24 | AS17161MMC - Marsh Inc. | Valid | — | 5/31/2026 |
| 205.156.164.0/24 | AS17161MMC - Marsh Inc. | Valid | — | 5/31/2026 |
| 205.156.134.0/24 | AS17161MMC - Marsh Inc. | Valid | — | 5/31/2026 |
| 205.156.183.0/24 | AS21874MMC - MMC | Valid | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS17161 | RADB | MAINT-AS1828 | 11/13/2023 |
Origin ASN
AS17161
MMC - Marsh Inc.
Geolocation
API
Open https://api.ipctl.io/v1/prefix/205.156.128.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/205.156.128.0/18" | jq
External Links