AS911
No prefixes for this AS number were observed in the RouteViews RIB.
Summary
- // analyst note
- AS911 shows no live routing activity in current RouteViews data and no CAIDA-inferred upstream, peer, or customer relationships. No operator-published source identifies the holder, so this entry cannot state who operates it; treat it as an unidentified, apparently dormant ASN rather than assume it is unused or defunct.
- // security note
- No notable public abuse or threat signal found for AS911 as of a September 2026 search; not listed on the Spamhaus ASN-DROP list, and no NANOG mailing-list archive mentions were found.
About this ASN.
AS911 is an ARIN-assigned autonomous system number with no live routing activity: a RouteViews collector snapshot recorded zero originated IPv4 prefixes, zero IPv6 prefixes, and zero observed peers at the dump instant. No permitted source names the current operator of this ASN.
The IANA AS Numbers registry places AS911 inside block 1-1876, assigned by ARIN, but IANA states only the assigning RIR and no finer per-ASN allocation class, and carries no allocation or last-updated date for this number. A third-party IP-intelligence directory associates the number with an organization name, but that listing republishes RIR registration data rather than material the operator itself published, so it does not meet this entry's identification bar and is not carried into the record.
CAIDA's AS-relationships dataset carries no row for AS911 in either the provider/customer or peer columns, so no upstream, customer, or peer relationship could be inferred. This is an unresolved classification, not a confirmed absence of relationships.
No notable public abuse or security signal was found for AS911 as of a September 2026 search: it does not appear on the Spamhaus ASN-DROP list, and no NANOG mailing-list archive discussion or CVE ties to it was located.
- Exposure
- RouteViews shows zero originated prefixes as of the September 2026 dump, so the ASN currently presents no announced IPv4/IPv6 address space to probe.
- Relationship data
- CAIDA AS-relationships carries no row for AS911; upstream/peer/customer classification is unresolved, not confirmed absent.
- Operator identity
- No operator-published source names the holder; a third-party IP-intelligence directory listing was rejected as insufficient because it republishes RIR registration data.
- RIR
- ARIN [Confirmed] (the IANA Autonomous System Number registry 1-1876)
- Allocated date
- Unknown [Unknown]
- Operator
- Unknown — no permitted source identifies the holder [Unknown]
Abuse listing (Spamhaus ASN-DROP)
Not listed as of a September 2026 check [Likely] (https://www.spamhaus.org/drop/asndrop.json)
Network & routing
- Upstream/peer relationships (CAIDA)
- No row found for AS911 in either direction; unclassified [Confirmed] (the cached registry snapshots/caida-as-rel.csv AS911)
- ASN
- AS911 [Confirmed] (the IANA Autonomous System Number registry 1-1876)
- Assignment class
- Unknown — IANA states only "Assigned by ARIN" for this block [Confirmed] (the IANA Autonomous System Number registry 1-1876)
- IPv4 prefixes announced
- 0, as observed by RouteViews at 2026-09-02T20:00:08.000Z [Confirmed] (the RouteViews BGP routing data (CC BY 4.0) AS911)
- IPv6 prefixes announced
- 0, as observed by RouteViews at 2026-09-02T20:00:08.000Z [Confirmed] (the RouteViews BGP routing data (CC BY 4.0) AS911)
- Observed peers
- 0, as observed by RouteViews at 2026-09-02T20:00:08.000Z [Confirmed] (the RouteViews BGP routing data (CC BY 4.0) AS911)
- NANOG archive mentions
- None found as of a September 2026 search [Likely] (https://marc.info/?l=nanog&s=AS911&q=b)