154.64.0.0/18

Currently announced by AS271493 SPEED NET PEDRA, in the routed prefix 154.64.0.0/18.

Current ASN: AS271493; SPEED NET PEDRA
Routed prefix: 154.64.0.0/18; Most specific route covering this prefix
ASNs over time: 2; 2 announcement records
RIR allocation: ARIN; United States · 154.64.0.0/16

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

ASN historyEvery routed prefix covering 154.64.0.0/18

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
154.64.0.0/18	AS271493	SPEED NET PEDRA	Brazil	2026-10-23 22:19	2026-10-24 02:18	Announcing
154.64.0.0/16	AS174	Cogent Communications, Inc.	United States	Before monitoring	2026-10-24 02:18	Announcing

More specific routes58 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
154.64.0.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.1.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.2.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.3.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.5.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.6.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.8.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.9.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.10.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.11.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.12.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.13.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.14.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.15.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.16.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.18.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.19.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.20.0/22	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.24.0/23	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.24.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.25.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.26.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.27.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.28.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.29.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.30.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.31.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.32.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.33.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.34.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.35.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.36.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.37.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.38.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.39.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.40.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.41.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.42.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.43.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.44.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.45.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.47.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.48.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.49.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.50.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.51.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.52.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.53.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.54.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.55.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.56.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.57.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.58.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.59.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.60.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.61.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.62.0/24	AS271493	SPEED NET PEDRA	Brazil	Before monitoring	2026-10-24 02:18	Announcing
154.64.63.0/24	AS271493	SPEED NET PEDRA	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	154.64.0.0/18	New announcement	AS271493	SPEED NET PEDRA	—	Brazil

Look up another address

RIR allocation record

Registry: ARIN
Allocated block: 154.64.0.0/16
Country: United States
Allocation date: 1992-02-05
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.