Autonomous system
AS40509 FLY
Unclassified ARIN Content
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 36 prefixes · 77.57K addresses IPv6 40 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 76 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS40509- Registry name
- FLY
- Registrant
- Fly.io, Inc.
- Abuse contact
- abuse@fly.io
- Registered
- 2017-12-20
- Last changed
- 2017-12-20
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- FLY
- Network type
- Content
- Scope
- Not Disclosed
- Traffic ratio
- Not Disclosed
- Peering policy
- Open
- Website
- https://fly.io
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 264 valid, 0 with no ROA
- ROAs
- 19 authorising AS40509
- ASPA
- no ASPA record
- IRR
- 100% registered · 264 of 264 announcements
- Route objects
- 1,297 naming AS40509
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 446 networks and 1,852 prefixes, as published 2026-10-27. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere