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AS204504

ADD39

Italy (IT)

ASN Information

AS NumberAS204504
AS NameAS-CODING
OrganizationAS-CODING Coding SRL
Also known asADD39
CountryItaly (IT)
RegistryRIPE NCC
ASN TypeCable/DSL/ISP
Last Seen
Announcement Count3
IPv4 Prefix Count2
IPv6 Prefix Count1
RPKI StatusValid ×2Unknown (could not be determined) ×1
IRR RecordsAvailable (10 route objects)
Websitehttp://www.add39.it ↗

AS Path to AS204504

  1. 37271—
  2. 41327FIBERTELECOM-AS Fiber Telecom S.p.A.
  3. 204504Origin

Most common path, seen 12× in route collector data, latest at a collector in Johannesburg (2026-10-19 23:17:30 UTC). Prepends collapsed.

Route Collectors (Visibility)

Sydney: 21 peer session(s)São Paulo: 33 peer session(s)Johannesburg: 37 peer session(s)Singapore: 43 peer session(s)Amsterdam: 46 peer session(s)London: 65 peer session(s)Eugene, OR: 117 peer session(s)
High (10+ peers)Medium (3–9)Low (1–2)

Approximate route collector locations, coloured by peer sessions carrying this AS's routes.

Announced Prefixes (3)

View All →
PrefixFamilyRPKILast Seen
185.134.168.0/22IPv4ValidNot looked up yet
185.227.244.0/22IPv4ValidNot looked up yet
2a0e:3e80::/29IPv6Not checkedNot looked up yet

Peers (34)

View All →
ASNameRelationshipPathsLast Seen
AS41327FIBERTELECOM-AS Fiber Telecom S.p.A.Upstream (inferred)443
AS6939HURRICANE - Hurricane Electric LLCUpstream (inferred)46
AS137409GSLNETWORKS-AS-AP - GSL Networks Pty LTDUpstream (inferred)13
AS49544i3Dnet i3D.net B.VUpstream (inferred)9
AS24482SGGS-AS-AP - SG.GSUpstream (inferred)7
AS13237LAMBDANET-AS euNetworks GmbHUpstream (inferred)5
AS39120CONVERGENZE-AS Convergenze S.p.A.Upstream (inferred)5
AS51333ARCOLINK-ASN Arcolink Telecomunicazioni S.r.l.Upstream (inferred)5

Neighbours seen next to AS204504 in public AS paths. These are not confirmed BGP sessions; peer IP addresses and locations are not published by these sources.

Public Peering Exchange Points (1)

IX Updates →
ExchangeLocationIPv4IPv6SpeedRS peerUpdated
MIX-ITMilan, IT217.29.67.852001:7f8:b:100:1d1:a520:4504:8510GYes

IX ports registered by AS204504 (self-reported by the network).

Interconnection Facilities (1)

FacilityCityCountry
MIX DC CALDERAMilanItaly

Data centres where AS204504 says it can interconnect (self-reported).

IRR AS-SET and Peering Policy

IRR AS-SETAS-CODING
Member of AS-SETsAS-CODING, AS-ARCOLINK, AS41327:AS-CUSTOMERS, AS-FT-CUSTOMERS-ADDOS
Peering policyOpen
Multiple locationsNot Required
Ratio requirementNo
ContractNot Required
Traffic1-5Gbps
Traffic ratioBalanced
Geographic scopeRegional
Max prefixes (IPv4 / IPv6)20 / 10
Unicast / IPv6 / MulticastYes / Yes / No
Looking glassNot available
Route serverNot available

Contact Information (2)

RoleNameEmailPhone
AbuseAbuse Teamabuse@add39.it—
Public RelationsPeering Teampeering@add39.it—

Only contacts the network has chosen to publish are shown.

Upstreams (22)

ASNameRelationshipPathsLast Seen
AS41327FIBERTELECOM-AS Fiber Telecom S.p.A.Upstream (inferred)443
AS6939HURRICANE - Hurricane Electric LLCUpstream (inferred)46
AS137409GSLNETWORKS-AS-AP - GSL Networks Pty LTDUpstream (inferred)13
AS49544i3Dnet i3D.net B.VUpstream (inferred)9
AS24482SGGS-AS-AP - SG.GSUpstream (inferred)7
AS13237LAMBDANET-AS euNetworks GmbHUpstream (inferred)5
AS39120CONVERGENZE-AS Convergenze S.p.A.Upstream (inferred)5
AS51333ARCOLINK-ASN Arcolink Telecomunicazioni S.r.l.Upstream (inferred)5
AS8529OMANTEL-AS Zain Omantel International FZ-LLCUpstream (inferred)3
AS29075IELO IELO-LIAZO SERVICES SASUpstream (inferred)3
AS132337ANSPL-AS-AP - AxclusiveUpstream (inferred)3
AS8218NEO-ASN Zayo Infrastructure France SAUpstream (inferred)2
AS14537CL-1379-14537 - Continent 8 LLCUpstream (inferred)2
AS6204ZET-NET INTERKVM HOST SRLUpstream (inferred)1
AS12637SEEWEB SEEWEB s.r.l.Upstream (inferred)1
AS57463NetIX NetIX Communications JSCUpstream (inferred)1
AS4455BSO IX Reach LtdUpstream (inferred)Inferred—
AS5405INTERDOTLINK Inter.link GmbHUpstream (inferred)Inferred—
AS14840AS14840 - BR.Digital TelecomUpstream (inferred)Inferred—
AS24961MYLOC-AS WIIT AGUpstream (inferred)Inferred—
AS29632NASSIST-AS Netassist International EOODUpstream (inferred)Inferred—
AS60171—Upstream (inferred)Inferred—

Downstreams (0)

No downstream ASNs found for AS204504 in current data sources.

Registry and network details

Registered holderAS-CODING Coding SRL
RegisteredYes
Peering policyOpen
IRR AS-setAS-CODING
Registry record last modified
MaintainersRIPE-NCC-END-MNT, it-codingsrl-1-mnt
Internet exchanges1
Facilities1
Network profile updated

Data updated . See limitations.