66.162.0.0/16

Currently announced by AS3549 Lumen AS 3549, in the routed prefix 66.162.0.0/16.

Current ASN: AS3549; Lumen AS 3549
Routed prefix: 66.162.0.0/16; Most specific route covering this prefix
ASNs over time: 1; 1 announcement record
RIR allocation: ARIN; United States · 66.162.0.0/16

Routing data · Nov 8, 2026, 10:26 UTC

ASN historyEvery routed prefix covering 66.162.0.0/16

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
66.162.0.0/16	AS3549	Lumen AS 3549	United States	Before monitoring	2026-11-08 10:26	Announcing

More specific routes16 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
66.162.2.0/24	AS21771	Nucor	United States	Before monitoring	2026-11-08 10:26	Announcing
66.162.49.0/24	AS3356	Lumen AS3356	United States	Before monitoring	2026-11-08 10:26	Announcing
66.162.52.0/23	AS394599	Full Service Networking	United States	Before monitoring	2026-11-08 10:26	Announcing
66.162.56.0/24	AS40154	Virtual Radiologic Corporation	United States	Before monitoring	2026-11-08 10:26	Announcing
66.162.87.0/24	AS25729	City of Irving	United States	Before monitoring	2026-11-08 10:26	Announcing
66.162.136.0/24	AS3356	Lumen AS3356	United States	Before monitoring	2026-11-08 10:26	Announcing
66.162.163.0/24	AS399929	Mid-America Apartments, L.P.	United States	Before monitoring	2026-11-08 10:26	Announcing
66.162.184.0/24	AS11120	WidePoint Integrated Solutions Corp.	United States	Before monitoring	2026-11-08 10:26	Announcing
66.162.208.0/24	AS3356	Lumen AS3356	United States	Before monitoring	2026-11-08 10:26	Announcing
66.162.228.0/24	AS3356	Lumen AS3356	United States	Before monitoring	2026-11-08 10:26	Announcing
66.162.235.0/24	AS394679	Generac Power Systems, Inc.	United States	Before monitoring	2026-11-08 10:26	Announcing
66.162.236.0/24	AS32419	Protective Insurance Corporation	United States	Before monitoring	2026-11-08 10:26	Announcing
66.162.240.0/20	AS3549	Lumen AS 3549	United States	Before monitoring	2026-11-08 10:26	Announcing
66.162.252.0/24	AS23204	Hawaii Medical Service Association	United States	Before monitoring	2026-11-08 10:26	Announcing
66.162.254.0/24	AS30472	East-West Center	United States	Before monitoring	2026-11-08 10:26	Announcing
66.162.71.0/24	AS22984	Lightspeed Communications	United States	Before monitoring	2026-11-04 20:26	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: ARIN
Allocated block: 66.162.0.0/16
Country: United States
Allocation date: 2001-08-24
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.