81.198.0.0/16

Currently announced by AS12578 SIA Tet, in the routed prefix 81.198.0.0/16.

Current ASN: AS12578; SIA Tet
Routed prefix: 81.198.0.0/16; Most specific route covering this prefix
ASNs over time: 1; 1 announcement record
RIR allocation: RIPENCC; Latvia · 81.198.0.0/16

Routing data · Nov 8, 2026, 10:26 UTC

ASN historyEvery routed prefix covering 81.198.0.0/16

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
81.198.0.0/16	AS12578	SIA Tet	Latvia	Before monitoring	2026-11-08 10:26	Announcing

More specific routes18 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
81.198.56.0/21	AS12578	SIA Tet	Latvia	Before monitoring	2026-11-08 10:26	Announcing
81.198.59.0/24	AS12578	SIA Tet	Latvia	Before monitoring	2026-11-08 10:26	Announcing
81.198.73.0/24	AS34073	ACAD-NET	Latvia	Before monitoring	2026-11-08 10:26	Announcing
81.198.85.0/24	AS12578	SIA Tet	Latvia	2026-11-02 14:22	2026-11-08 10:26	Announcing
81.198.93.0/24	AS6747	LATTELEKOM	Latvia	Before monitoring	2026-11-08 10:26	Announcing
81.198.95.0/24	AS12578	SIA Tet	Latvia	Before monitoring	2026-11-08 10:26	Announcing
81.198.112.0/20	AS12578	SIA Tet	Latvia	Before monitoring	2026-11-08 10:26	Announcing
81.198.160.0/20	AS12578	SIA Tet	Latvia	Before monitoring	2026-11-08 10:26	Announcing
81.198.165.0/24	AS12578	SIA Tet	Latvia	Before monitoring	2026-11-08 10:26	Announcing
81.198.166.0/24	AS12525	INTERNETLTD	Latvia	Before monitoring	2026-11-08 10:26	Announcing
81.198.167.0/24	AS12525	INTERNETLTD	Latvia	Before monitoring	2026-11-08 10:26	Announcing
81.198.175.0/24	AS43188	LDC_AS	Latvia	Before monitoring	2026-11-08 10:26	Announcing
81.198.186.0/24	AS12578	SIA Tet	Latvia	Before monitoring	2026-11-08 10:26	Announcing
81.198.189.0/24	AS24921	Latvijas Mobilais Telefons AS24921	Latvia	Before monitoring	2026-11-08 10:26	Announcing
81.198.190.0/24	AS206111	LinkITLV	Latvia	Before monitoring	2026-11-08 10:26	Announcing
81.198.192.0/22	AS34073	ACAD-NET	Latvia	Before monitoring	2026-11-08 10:26	Announcing
81.198.192.0/23	AS34073	ACAD-NET	Latvia	Before monitoring	2026-11-08 10:26	Announcing
81.198.194.0/24	AS34073	ACAD-NET	Latvia	Before monitoring	2026-11-08 10:26	Announcing

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: RIPENCC
Allocated block: 81.198.0.0/16
Country: Latvia
Allocation date: 2002-10-02
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.