AS21247 — IPSYN-AS Association IP Synergies

AS21247 announces 1 IPv4 prefixes covering 512 addresses and 1 IPv6 prefixes.

About this network

The AS handle IPSYN-AS is held by Association IP Synergies.

What it's used for

• The space carries transit and gateway infrastructure, evidenced by reverse DNS entries such as bcast-transit-ovh.routers.ipsyn.net and gw-ild.ipsyn.net.
• The AS announces 512 IPv4 addresses and 1 IPv6 prefix, with 44 observed neighbours. This ratio of limited address space to a high number of peering partners indicates a transit or upstream provider role rather than a large access network.

Notable

• The registrant IPsyn Admins; Association IP Synergies aligns directly with the AS holder name.
• The address inventory consists of a single IPv4 prefix, 193.109.142.0/23, and one IPv6 prefix, 2001:67c:6cc::/48, representing a compact and focused routing footprint.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 193.109.142.0/23
• 2001:67c:6cc::/48

Upstream networks

• AS29075 IELO-LIAZO SERVICES SAS
• AS6939 Hurricane Electric LLC
• AS8218 Zayo Infrastructure France SA
• AS39801 France IX Services SASU
• AS9002 RETN Limited
• AS24482 SG.GS
• AS50628 Leonix Telecom SAS
• AS37721 Virtual Technologies & Solutions
• AS34019 Hivane Association
• AS25091 IP-Max SA

Adjacent networks

• AS29075 IELO-LIAZO SERVICES SAS
• AS6939 Hurricane Electric LLC
• AS8218 Zayo Infrastructure France SA
• AS39801 France IX Services SASU
• AS9002 RETN Limited
• AS50628 Leonix Telecom SAS
• AS24482 SG.GS
• AS37721 Virtual Technologies & Solutions
• AS34019 Hivane Association
• AS25091 IP-Max SA

Routing security

• RPKI: 0 valid, 0 invalid and 2 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 2 route objects.
• Listed in as-sets: AS-CLARANETFR-PEERINGS, AS-FRANCEIX-PAR, AS-FRANCEIX-PAR-LIST, AS-IPSYN, AS-MFNX, AS29075:AS-CUSTOMERS, AS29075:AS-CUSTOMERS:AS-SET, AS39801:AS-TRANSIT-1, AS51706:AS-MEMBERS, AS51706:AS-MEMBERS:AS-PAR-RS, AS8218:AS-CUSTOMERS, AS8218:AS-FR-CUSTOMERS.

Internet exchanges

• France-IX Paris — Paris, France