Network topology

Relationships come from RIS AS_PATH observations; direction represents path position, not a commercial contract or traffic direction.

AS212975

Currently announcedSnapshot awaiting refresh

TEAMCITY-AS TeamCity s.r.o. · TEAMCITY-AS

Last observed10/24/2026, 20:23:38Open ASN profile →

AS212975 relationship topology

Showing 3 / 3

AS212975TEAMCITY-AS TeamCity s.…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS28725CETIN-AS CETIN a.s.

Relationship: Upstream
Observed weight: 416
ASN registration country: Czechia
Latest RIS data: 10/12/2026, 00:00:00

Open AS28725 profile →

All adjacent autonomous systems

The table preserves every relationship in the selected filter; graph limits and pagination never remove data.

3 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS28725Observed weight 416	CETIN-AS CETIN a.s.	Upstream	Czechia	8/28/2019, 00:00:00	10/12/2026, 00:00:00	804	262
AS47232Observed weight 342	ISPAlliance ISP Alliance a.s.	Upstream	Czechia	8/28/2019, 00:00:00	10/12/2026, 00:00:00	334	131
AS47727Observed weight 107	WARNETCZ-AS Warnet.cz s.r.o.	Downstream	Czechia	8/28/2019, 00:00:00	10/12/2026, 00:00:00	108	28

CHA.LA ASN relationship snapshotRelationships are normalized by CHA.LA from collected routing observations and registration context.CHA.LA routing observations · registration context