41.220.0.0/20

Currently announced by AS36901 Datanet Superblock1, in the routed prefix 41.220.0.0/20.

Current ASN: AS36901; Datanet Superblock1
Routed prefix: 41.220.0.0/20; Most specific route covering this prefix
ASNs over time: 1; 1 announcement record
RIR allocation: AFRINIC; Uganda · 41.220.0.0/20

Routing data · Nov 8, 2026, 12:23 UTC

ASN historyEvery routed prefix covering 41.220.0.0/20

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
41.220.0.0/20	AS36901	Datanet Superblock1	Uganda	Before monitoring	2026-11-08 12:23	Announcing

More specific routes21 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
41.220.0.0/23	AS29032	DATANET-UG	Uganda	Before monitoring	2026-11-08 12:23	Announcing
41.220.0.0/24	AS29032	DATANET-UG	Uganda	2026-10-27 10:19	2026-11-08 12:23	Announcing
41.220.1.0/24	AS29032	DATANET-UG	Uganda	Before monitoring	2026-11-08 12:23	Announcing
41.220.2.0/23	AS29032	DATANET-UG	Uganda	Before monitoring	2026-11-08 12:23	Announcing
41.220.2.0/24	AS29032	DATANET-UG	Uganda	Before monitoring	2026-11-08 12:23	Announcing
41.220.3.0/24	AS29032	DATANET-UG	Uganda	Before monitoring	2026-11-08 12:23	Announcing
41.220.4.0/23	AS29032	DATANET-UG	Uganda	Before monitoring	2026-11-08 12:23	Announcing
41.220.4.0/24	AS36901	Datanet Superblock1	Uganda	Before monitoring	2026-11-08 12:23	Announcing
41.220.5.0/24	AS29032	DATANET-UG	Uganda	Before monitoring	2026-11-08 12:23	Announcing
41.220.6.0/23	AS29032	DATANET-UG	Uganda	Before monitoring	2026-11-08 12:23	Announcing
41.220.6.0/24	AS29032	DATANET-UG	Uganda	Before monitoring	2026-11-08 12:23	Announcing
41.220.7.0/24	AS29032	DATANET-UG	Uganda	Before monitoring	2026-11-08 12:23	Announcing
41.220.8.0/24	AS29032	DATANET-UG	Uganda	Before monitoring	2026-11-08 12:23	Announcing
41.220.9.0/24	AS36901	Datanet Superblock1	Uganda	Before monitoring	2026-11-08 12:23	Announcing
41.220.10.0/24	AS29032	DATANET-UG	Uganda	Before monitoring	2026-11-08 12:23	Announcing
41.220.11.0/24	AS36901	Datanet Superblock1	Uganda	Before monitoring	2026-11-08 12:23	Announcing
41.220.12.0/23	AS29032	DATANET-UG	Uganda	Before monitoring	2026-11-08 12:23	Announcing
41.220.12.0/24	AS29032	DATANET-UG	Uganda	Before monitoring	2026-11-08 12:23	Announcing
41.220.13.0/24	AS29032	DATANET-UG	Uganda	Before monitoring	2026-11-08 12:23	Announcing
41.220.14.0/24	AS36901	Datanet Superblock1	Uganda	Before monitoring	2026-11-08 12:23	Announcing
41.220.0.0/24	AS36901	Datanet Superblock1	Uganda	Before monitoring	2026-10-28 12:21	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: AFRINIC
Allocated block: 41.220.0.0/20
Country: Uganda
Allocation date: 2006-02-02
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.