151.0.0.0/19

Currently announced by AS57164 ViacheslavFitiunin, in the routed prefix 151.0.0.0/19.

Current ASN: AS57164; ViacheslavFitiunin
Routed prefix: 151.0.0.0/19; Most specific route covering this prefix
ASNs over time: 1; 1 announcement record
RIR allocation: RIPENCC; Russia · 151.0.0.0/18

Routing data · Nov 8, 2026, 10:26 UTC

ASN historyEvery routed prefix covering 151.0.0.0/19

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
151.0.0.0/19	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-08 10:26	Announcing

More specific routes21 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
151.0.0.0/20	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-08 10:26	Announcing
151.0.8.0/23	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-08 10:26	Announcing
151.0.16.0/20	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-08 10:26	Announcing
151.0.16.0/24	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-08 10:26	Announcing
151.0.17.0/24	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-08 10:26	Announcing
151.0.18.0/24	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-08 10:26	Announcing
151.0.19.0/24	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-08 10:26	Announcing
151.0.20.0/24	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-08 10:26	Announcing
151.0.21.0/24	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-08 10:26	Announcing
151.0.22.0/24	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-08 10:26	Announcing
151.0.23.0/24	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-08 10:26	Announcing
151.0.24.0/21	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-08 10:26	Announcing
151.0.24.0/22	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-08 10:26	Announcing
151.0.24.0/23	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-08 10:26	Announcing
151.0.26.0/23	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-08 10:26	Announcing
151.0.28.0/22	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-08 10:26	Announcing
151.0.28.0/23	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-08 10:26	Announcing
151.0.30.0/23	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-08 10:26	Announcing
151.0.13.0/24	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-05 04:25	Stopped
151.0.14.0/24	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-05 04:25	Stopped
151.0.15.0/24	AS57164	ViacheslavFitiunin	Russia	Before monitoring	2026-11-05 04:25	Stopped

Change logAll changes

The routes covering this address have had no origin changes since ASNBase started monitoring.

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RIR allocation record

Registry: RIPENCC
Allocated block: 151.0.0.0/18
Country: Russia
Allocation date: 2012-01-05
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.