128.13.0.0/16

Currently announced by AS12007 Raytheon Company, in the routed prefix 128.13.0.0/16.

Current ASN: AS12007; Raytheon Company
Routed prefix: 128.13.0.0/16; Most specific route covering this prefix
ASNs over time: 1; 1 announcement record
RIR allocation: ARIN; United States · 128.13.0.0/16

Routing data · Oct 24, 2026, 10:21 UTC

ASN historyEvery routed prefix covering 128.13.0.0/16

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
128.13.0.0/16	AS12007	Raytheon Company	United States	Before monitoring	2026-10-24 10:21	Announcing

More specific routes49 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
128.13.3.0/24	AS12007	Raytheon Company	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.48.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.49.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.50.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.52.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.53.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.54.0/24	AS12007	Raytheon Company	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.64.0/24	AS12007	Raytheon Company	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.112.0/23	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.112.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.113.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.114.0/23	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.114.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.115.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.121.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.122.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.123.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.124.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.125.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.126.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.127.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.128.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.129.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.130.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.131.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.132.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.134.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.135.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.136.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.137.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.138.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.139.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.140.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.141.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.142.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.143.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.145.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.146.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.147.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.148.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.149.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.152.0/22	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.160.0/21	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.168.0/21	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.176.0/21	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.184.0/21	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 10:21	Announcing
128.13.57.0/24	AS197	Raytheon Company	United States	2026-10-20 22:22	2026-10-21 04:18	Stopped
128.13.120.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 00:20	Stopped
128.13.144.0/24	AS1341	Rockwell Collins, Inc.	United States	Before monitoring	2026-10-24 04:19	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: ARIN
Allocated block: 128.13.0.0/16
Country: United States
Allocation date: 1983-02-24
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.