subnet.im

AS34971CDLAN SpA

ItalyRegistryRIPE NCCTypeEyeball

As of 27th September 2026, AS34971 (CDLAN SpA), an access network registered in Italy with RIPE NCC, originates 18 IPv4 prefixes covering 9k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 11,289th-largest of the 79,525 networks we see originating IPv4, and the 184th-largest of 1,075 in Italy. It is seen behind 6 upstream networks, most often AS20836 (CDLAN SpA) and AS50673 (Serverius Holding B.V.), and in front of 1 downstream network. 35% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 85% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

18

IPv6 prefixes

2

IPv4 addresses

9k

IPv6 /64s

4.4B

Upstream graph

The networks AS34971 is seen behind, one and two hops out, drawn from real AS paths.

AS34971Toward the internet core
Upstream graph for AS34971: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS34971CDLAN SpAThis networkAS6762Telecom Italia Sp…AS6939Hurricane Electri…AS20836CDLAN SpAAS22356Durand do Brasil …AS50673Serverius Holding…AS2914NTT America, Inc.AS52075Wifirst S.A.S.AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS3356Lumen (Level 3)AS6453TATA Communicatio…AS33891Core-Backbone GmbH

Networks observed one and two hops upstream of AS34971 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

41

adjacent networks

Upstreams
615%
Peers
3483%
Downstreams
12%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS34971
NetworkCountryRelationshipPathsVantage pts
AS20836CDLAN SpAITPeer882127
AS50673Serverius Holding B.V.NLPeer29481
AS6762Telecom Italia Sparkle (Seabone)ITPeer175101
AS6939Hurricane Electric LLCUSPeer9222
AS22356Durand do Brasil LtdaBRPeer122
AS132337AxclusiveSGPeer122

Prefixes

The largest blocks AS34971 originates, widest first.

Largest prefixes originated by AS34971
PrefixAddressesVisibility
37.247.48.0/212k81/81
188.164.128.0/212k81/81
193.183.98.0/2351281/81
193.234.224.0/2351281/81
195.88.4.0/2351281/81
95.157.96.0/2425681/81
162.250.144.0/2425613/81
162.250.145.0/2425613/81
162.250.146.0/2425618/81
162.250.147.0/2425681/81

Routing health

How AS34971's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid35.0%7
  • Invalid0.0%0
  • No ROA65.0%13

Propagation

  • Globally propagated90% of full-feed peers or more85.0%17
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%15.0%3

Prefix sizes

IPv4 — 18 prefixes

IPv6 — 2 prefixes

  • /324.3B × /6450.0%1
  • /3867.1M × /6450.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS34971 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.