151.185.0.0/19

Currently announced by AS6079 Astound, in the routed prefix 151.185.0.0/19.

Current ASN: AS6079; Astound
Routed prefix: 151.185.0.0/19; Most specific route covering this prefix
ASNs over time: 1; 1 announcement record
RIR allocation: RIPENCC; United States · 151.185.0.0/19

Routing data · Nov 8, 2026, 10:26 UTC

ASN historyEvery routed prefix covering 151.185.0.0/19

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
151.185.0.0/19	AS6079	Astound	United States	2026-11-04 22:23	2026-11-08 10:26	Announcing

More specific routes32 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
151.185.0.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 12:19	Stopped
151.185.1.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 12:19	Stopped
151.185.2.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 12:19	Stopped
151.185.3.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 16:19	Stopped
151.185.4.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 16:19	Stopped
151.185.5.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 12:19	Stopped
151.185.6.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 12:19	Stopped
151.185.7.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 12:19	Stopped
151.185.8.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 12:19	Stopped
151.185.9.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 12:19	Stopped
151.185.10.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 16:19	Stopped
151.185.11.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 12:19	Stopped
151.185.12.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 12:19	Stopped
151.185.13.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 16:19	Stopped
151.185.14.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 16:19	Stopped
151.185.15.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 12:19	Stopped
151.185.16.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 12:19	Stopped
151.185.17.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 12:19	Stopped
151.185.18.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 12:19	Stopped
151.185.19.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 16:19	Stopped
151.185.20.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 16:19	Stopped
151.185.21.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 16:19	Stopped
151.185.22.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 12:19	Stopped
151.185.23.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 16:19	Stopped
151.185.24.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 16:19	Stopped
151.185.25.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 16:19	Stopped
151.185.26.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 12:19	Stopped
151.185.27.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 12:19	Stopped
151.185.28.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 20:18	Stopped
151.185.29.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 20:18	Stopped
151.185.30.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 20:18	Stopped
151.185.31.0/24	AS398781	OCULUS NETWORKS INC	United States	Before monitoring	2026-10-25 20:18	Stopped

Change logAll changes

Detected (UTC)	Prefix	Change	ASN	Name	Previous ASN	Country
2026-11-04 22:23	151.185.0.0/19	New announcement	AS6079	Astound	—	United States

Look up another address

RIR allocation record

Registry: RIPENCC
Allocated block: 151.185.0.0/19
Country: United States
Allocation date: 1991-09-17
Status: allocated

From the RIRs’ delegated statistics files. Shows where the addresses are registered, not where they are used.

How monitoring works

Every 2 hours ASNBase takes the bgp.tools global routing table (prefix → origin ASN) and compares it with the previous one. The detected time is the time of that comparison; the actual change can be up to about 2 hours earlier.
Only routes seen by more than 100 bgp.tools peers are listed as changes; routes with less visibility are only kept in the history.
A new announcement counts only if it is still in the next routing table, and a withdrawal only if the prefix is missing from two tables in a row, so short flaps are ignored.
ASNBase has been monitoring since 2026-10-19. “Before monitoring” under “First seen” means the route was already announced when monitoring started; the earlier date is unknown.
Prefixes first seen during the first day of monitoring do not count as new announcements: most of them were simply missing from the table at the moment monitoring started.
Countries and regions follow the ASN’s registration, not the actual location of the IP addresses.