Network topology

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

AS19121

Currently announcedSnapshot awaiting refresh

Blattner Company · BLATTNER-HOLDING-COMPANY

Last observed10/26/2026, 23:21:38Open ASN profile →

AS19121 relationship topology

Showing 1 / 1

AS19121Blattner Company

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS11232MIDCO-NET - Midcontinent Communications

Relationship: Upstream
Observed weight: 279
ASN registration country: United States
Latest RIS data: 9/30/2026, 00:00:00

Open AS11232 profile →

All adjacent autonomous systems

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

1 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS11232Observed weight 279	MIDCO-NET - Midcontinent Communications	Upstream	United States	8/19/2019, 00:00:00	9/30/2026, 00:00:00	379	0

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