asn.dev

Autonomous system

AS51083 GRENODE

Unclassified RIPE

IPv4 addresses 7.68K 15 prefixes
IPv6 prefixes 20 counted as prefixes, not addresses
Countries 1 mostly FR
Exchanges 1 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

Grenode

France · AI-generated

non-profit regional isp france

GRENODE is operated by Grenode, a non-profit association providing regional internet connectivity in France.

What it's used for

  • The address space carries mixed traffic including residential and organizational endpoints, evidenced by netnames such as FR-GRENODE-20190410, FR-REZINE-20190423, and REZINE-MAIN-IPV4, alongside specific allocations for Amateur Radio Digital Communications and INSTITUT MAX VON LAUE-PAUL LANGEVIN.
  • The AS announces 7,680 IPv4 addresses and 20 IPv6 prefixes while maintaining only 8 observed neighbours, a ratio indicative of an access or eyeball network rather than a transit provider.
  • Traffic from this AS consists of subscriber connections and institutional endpoints, consistent with Grenode's role as a non-profit regional ISP serving local communities and organizations.

Notable

  • Registrants align with the announcer, with NOC Grenode and Grenode listed for the majority of prefixes, while Rezine and Association Rezine appear for specific blocks, suggesting internal segmentation or related organizational structures.
  • The inventory includes diverse netnames like AMPRNET and ILICO, indicating the AS hosts space for various specialized groups and associations beyond the primary operator.

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

Full topology · Graph

Internet exchanges

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
France-IX LyonLyon, France77.95.71.69

Transit providers

3 upstream, 0 downstream and 5 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS29075IELO-LIAZO SERVICES SAS1,122
AS35625Eurofiber France SAS736
AS20766Association "Gitoyen"1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 15 prefixes · 7.68K addresses IPv6 20 prefixes

CountryNamePrefixes
FRFrance35

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS51083
Registry name
Grenode
Registrant
MNT-GRENODE
Abuse contact
abuse@grenode.net
Registered
2010-05-28
Last changed
2023-11-20
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
57% valid · 21 valid, 16 with no ROA
ROAs
21 authorising AS51083
ASPA
no ASPA record
IRR
100% registered · 37 of 37 announcements
Route objects
39 naming AS51083

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: 442 networks and 1,783 prefixes, as published 2026-10-17. 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

Cross-check