149.78.0.0/20

Currently announced by AS268314 EWERTON DA SILVA LOPES TELECOMUNICAÇÕES, in the routed prefix 149.78.0.0/20.

Current ASN: AS268314; EWERTON DA SILVA LOPES TELECOMUNICAÇÕES
Routed prefix: 149.78.0.0/20; Most specific route covering this prefix
ASNs over time: 2; 2 announcement records
RIR allocation: ARIN; United States · 149.78.0.0/16

Routing data · Oct 24, 2026, 02:18 UTC

ASN historyEvery routed prefix covering 149.78.0.0/20

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
149.78.0.0/20	AS268314	EWERTON DA SILVA LOPES TELECOMUNICAÇÕES	Brazil	2026-10-23 22:19	2026-10-24 02:18	Announcing
149.78.0.0/16	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-10-24 02:18	Announcing

More specific routes14 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
149.78.0.0/24	AS268314	EWERTON DA SILVA LOPES TELECOMUNICAÇÕES	Brazil	Before monitoring	2026-10-24 02:18	Announcing
149.78.1.0/24	AS268314	EWERTON DA SILVA LOPES TELECOMUNICAÇÕES	Brazil	Before monitoring	2026-10-24 02:18	Announcing
149.78.3.0/24	AS268314	EWERTON DA SILVA LOPES TELECOMUNICAÇÕES	Brazil	Before monitoring	2026-10-24 02:18	Announcing
149.78.4.0/24	AS268314	EWERTON DA SILVA LOPES TELECOMUNICAÇÕES	Brazil	Before monitoring	2026-10-24 02:18	Announcing
149.78.5.0/24	AS268314	EWERTON DA SILVA LOPES TELECOMUNICAÇÕES	Brazil	Before monitoring	2026-10-24 02:18	Announcing
149.78.6.0/24	AS268314	EWERTON DA SILVA LOPES TELECOMUNICAÇÕES	Brazil	Before monitoring	2026-10-24 02:18	Announcing
149.78.7.0/24	AS268314	EWERTON DA SILVA LOPES TELECOMUNICAÇÕES	Brazil	Before monitoring	2026-10-24 02:18	Announcing
149.78.8.0/24	AS268314	EWERTON DA SILVA LOPES TELECOMUNICAÇÕES	Brazil	Before monitoring	2026-10-24 02:18	Announcing
149.78.9.0/24	AS268314	EWERTON DA SILVA LOPES TELECOMUNICAÇÕES	Brazil	Before monitoring	2026-10-24 02:18	Announcing
149.78.10.0/24	AS268314	EWERTON DA SILVA LOPES TELECOMUNICAÇÕES	Brazil	Before monitoring	2026-10-24 02:18	Announcing
149.78.12.0/24	AS268314	EWERTON DA SILVA LOPES TELECOMUNICAÇÕES	Brazil	Before monitoring	2026-10-24 02:18	Announcing
149.78.13.0/24	AS268314	EWERTON DA SILVA LOPES TELECOMUNICAÇÕES	Brazil	Before monitoring	2026-10-24 02:18	Announcing
149.78.14.0/24	AS268314	EWERTON DA SILVA LOPES TELECOMUNICAÇÕES	Brazil	Before monitoring	2026-10-24 02:18	Announcing
149.78.15.0/24	AS268314	EWERTON DA SILVA LOPES TELECOMUNICAÇÕES	Brazil	Before monitoring	2026-10-24 02:18	Announcing

Change logAll changes

Detected (UTC)	Prefix	Change	ASN	Name	Previous ASN	Country
2026-10-23 22:19	149.78.0.0/20	New announcement	AS268314	EWERTON DA SILVA LOPES TELECOMUNICAÇÕES	—	Brazil

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RIR allocation record

Registry: ARIN
Allocated block: 149.78.0.0/16
Country: United States
Allocation date: 1992-01-28
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.