asn.dev

Autonomous system

AS209835 AVANZAFIBRA

Residential RIPE

IPv4 addresses 5.63K 10 prefixes
IPv6 prefixes 6 counted as prefixes, not addresses
Countries 1 mostly ES
Exchanges 4 recorded by PCH
Upstreams 15 0 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 4 exchanges in 3 countries, largest first.

ExchangeLocationTheir address
DE-CIX MadridMadrid, Spain185.1.192.98
ERA-IX AmsterdamAmsterdam, Netherlands185.1.240.124
ESpanix Madrid Lower LANMadrid, Spain193.149.1.6
ERA-IX FrankfurtFrankfurt, Germany185.0.27.72

Transit providers

15 upstream, 0 downstream and 18 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL722
AS35699Adamo Telecom Iberia S.A.431
AS6939Hurricane Electric LLC162
AS34549meerfarbig GmbH & Co. KG118
AS59908BalaLink S.A.112
AS33891Core-Backbone GmbH59
AS50304Blix Solutions AS48
AS37721Virtual Technologies & Solutions34

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, 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 10 prefixes · 5.63K addresses IPv6 6 prefixes

CountryNamePrefixes
ESSpain16

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS209835
Registry name
AVANZAFIBRA
Registrant
ES-DRTEL-MNT
Abuse contact
noc@avanzafibra.com
Registered
2018-11-23
Last changed
2025-11-12
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
97% valid · 33 valid, 1 with no ROA
ROAs
29 authorising AS209835
ASPA
no ASPA record
IRR
100% registered · 34 of 34 announcements
Route objects
31 naming AS209835

Reputation

Classification and threat

Residential Fixed-line consumer ISP. Addresses here are homes.

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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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