2804:3b7c::/33

Currently announced by AS266152 PJM NET, in the routed prefix 2804:3b7c::/33.

Current ASN: AS266152; PJM NET
Routed prefix: 2804:3b7c::/33; Most specific route covering this prefix
ASNs over time: 1; 2 announcement records
RIR allocation: LACNIC; Brazil · 2804:3b7c::/32

Routing data · Oct 23, 2026, 22:20 UTC

ASN historyEvery routed prefix covering 2804:3b7c::/33

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
2804:3b7c::/33	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c::/32	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing

More specific routes45 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
2804:3b7c:100::/40	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:200::/41	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:280::/41	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:581::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:582::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:583::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:584::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:585::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:587::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:588::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:589::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:58a::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:58b::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:58c::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:58d::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:58e::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:58f::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:590::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:591::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:592::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:594::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:595::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:596::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:597::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:598::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:599::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:59a::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:59b::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:59c::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:59d::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:59e::/47	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:5a0::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:5a1::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:5a2::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:5a3::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:5a4::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:5a5::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:5a8::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:5aa::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:5ab::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:5ae::/48	AS266152	PJM NET	Brazil	2026-10-20 18:21	2026-10-23 22:20	Announcing
2804:3b7c:600::/43	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:700::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:801::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-23 22:20	Announcing
2804:3b7c:5ad::/48	AS266152	PJM NET	Brazil	Before monitoring	2026-10-21 20:22	Stopped

Change logAll changes

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

Look up another address

RIR allocation record

Registry: LACNIC
Allocated block: 2804:3b7c::/32
Country: Brazil
Allocation date: 2017-04-11
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.