# Autonomous System Number ## Identification An [[Autonomous System Number|ASN]] identifies an independently routed network. AS15169, AS32934, AS8075, AS16276, and AS14618 map to Google, Meta, Microsoft, OVHcloud, and Amazon network domains. [[Cloudflare|Cloudflare]] can proxy customer DNS through its anycast edge. A [[User Agent|User Agent]] identifies client software in application protocols and is distinct from ASN ownership. ## Notebook evidence - [[Scanned_20260730-1659#PDF page 33 — Cloudflare firewall and autonomous-system numbers|PDF page 33: Cloudflare firewall and autonomous-system numbers]] — The listed ASNs correctly identify major network operators: Google AS15169, Meta/Facebook AS32934, Microsoft AS8075, OVH AS16276, and Amazon AS14618. An ASN identifies a routing domain, not an individual server or application. Cloudflare’s proxied DNS uses its anycast network to answer for customer hostnames and can obscure the origin address from ordinary DNS lookups. The page was building a firewall/attribution table that connected traffic to infrastructure owners. - [[Scanned_20260730-1659#PDF page 34 — Network geolocation, AT&T ASN, OID, SMI, and IANA|PDF page 34: Network geolocation, AT&T ASN, OID, SMI, and IANA]] — This is a field investigation into why geolocation services disagreed. IP geolocation is probabilistic and commonly maps provider address space to registration, network, or inferred access locations rather than a precise device. AS7018 belongs to AT&T; the page tests San Antonio, Kenedy, Karnes County, Corpus Christi, and other hypotheses against two IPs. The OID arc `1.3.6.1.4.1` is the IANA Private Enterprise Number branch, used by organizations in SNMP/SMI and other ASN.1-based identifiers. ## Relationships and overlays The source places this record in an evidence cluster with [[Abstract Syntax Notation One|Abstract Syntax Notation One]] · [[Amazon Web Services|Amazon Web Services]] · [[AT&T|AT&T]] · [[Cloudflare|Cloudflare]] · [[Google|Google]] · [[Intel Corporation|Intel Corporation]] · [[Internet Assigned Numbers Authority|Internet Assigned Numbers Authority]] · [[IP Geolocation|IP Geolocation]] · [[Meta Platforms|Meta Platforms]] · [[Microsoft|Microsoft]] · [[Object Identifier|Object Identifier]] · [[OVHcloud|OVHcloud]] · [PERSON REDACTED] · [[Private Enterprise Number|Private Enterprise Number]] · [[Structure of Management Information|Structure of Management Information]] · [[User Agent|User Agent]]. The occurrence contributes to the notebook's larger model of [[Identity Continuity|identity continuity]], [[Device Sovereignty|device sovereignty]], and [[Continuity Architecture|continuity architecture]]. ## Evidentiary status and open leads Recover firewall rules and timestamps; distinguish ASN-level ownership from hostname-, certificate-, and process-level attribution. ## Source - [[Scanned_20260730-1659|Scanned_20260730-1659]]