Autonomous system
AS35280 F5
Hosting RIPE
Summary
F5 Networks
business infrastructure cloud security
The AS handle F5 is held by F5 Networks SARL, the French subsidiary of F5 Inc.
What it's used for
- The address space carries corporate infrastructure and cloud services, evidenced by netnames such as
F5-DISTRIBUTED-CLOUD-1,F5-inc, andFR-F5-20190409. - With 55,808 IPv4 addresses announced across 42 prefixes and 6,459 observed neighbours, the high neighbour-to-address ratio indicates a transit or peering-heavy role rather than a residential access network.
Notable
- Registrants are consistent with the announcer, primarily listing F5 Inc. - Network Engineering and F5 Networks SARL, with one prefix registered to Brink's, Incorporated.
- F5 Inc. acquired Volterra, Inc., which is reflected in the
VOLTERRA-APnetname and reverse DNS entries pointing tovolterra.us. - The inventory includes a mix of large blocks in the 159.60.0.0/16 range and smaller /22 and /23 allocations across various global regions.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 61 exchanges in 19 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| IX.br (PTT.br) São Paulo | São Paulo, Brazil | 187.16.217.122 |
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.193.10 |
| LINX LON1 | London, United Kingdom | 195.66.225.161 |
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.209.14 |
| France-IX Paris | Paris, France | 37.49.237.108 |
| Equinix Internet Exchange Singapore | Singapore, Singapore | 27.111.228.137 |
| Milan Internet Exchange | Milan, Italy | 217.29.66.139 |
| Equinix Internet Exchange Ashburn | Ashburn, United States | 206.126.238.91 |
Transit providers
49 upstream, 1,732 downstream and 1,612 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 43 prefixes · 56.32K addresses IPv6 5 prefixes
| Country | Name | Prefixes |
|---|---|---|
| FR | France | 48 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS35280- Registry name
- F5
- Registrant
- F5-AUTO-MNT
- Abuse contact
- abuse@f5.com
- Registered
- 2015-04-01
- Last changed
- 2026-09-12
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 97% valid · 62 valid, 2 with no ROA
- ROAs
- 105 authorising AS35280
- ASPA
- no ASPA record
- IRR
- 100% registered · 64 of 64 announcements
- Route objects
- 337 naming AS35280
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
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: 442 networks and 1,772 prefixes, as published 2026-10-15. 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