Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS40271

Announcement observedARIN

SFMIX-TRANSIT - San Francisco Metropolitan Internet Exchange (SFMIX) · SFMIX-TRANSIT

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/3/2026, 08:43:32Snapshot expired

View network topology RDAP registration

ASN: AS40271
Registration country: United States
Name: SFMIX-TRANSIT - San Francisco Metropolitan Internet Exchange (SFMIX)
Abbreviation: SFMIX-TRANSIT
Registration date: 9/11/2024, 12:13:46
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
149.112.115.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 00:00:00	10/12/2026, 08:00:00	✓	×	Currently valid
149.112.188.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/19/2026, 00:00:00	10/12/2026, 08:00:00	✓	×	Currently valid

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: SFMIX-TRANSIT - San Francisco Metropolitan Internet Exchange (SFMIX)
RIR: ARIN
Registration country: United States
Registration date: 9/11/2024, 12:13:46
Abuse contact: tech-c@sfmix.org

Snapshot trend

10/3/2026, 08:43:322 v41 v61 Upstream · 6 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · rir-rdap-asn · iana-rdap-asn-bootstrap