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Country

Spain

Europe European Union ES
IPv4 addresses
37,108,750
CIDR ranges
11,730
Global rank · IPv4
#16 of 250
ASNs
1,219
Organizations
1,084
Regions / states
19

Top ASNs

ASNNameIPs
AS3352 Telefonica De Espana S.a.u. 15.50M
AS12479 Orange Espagne SA 7.01M
AS12430 Vodafone Spain 3.89M
AS6739 Vodafone Ono, S.A. 1.82M
AS766 Entidad Publica Empresarial Red.es 1.37M
AS16509 Amazon.com, Inc. 1.01M
AS15704 Xtra Telecom S.A. 841.5K
AS12338 Euskaltel S.A. 507.9K
AS29119 Aire Networks Del Mediterraneo Sl Unipersonal 426.8K
AS12334 R Cable y Telecable Telecomunicaciones, S.A.U. 422.7K
AS57269 Digi Spain Telecom S.A 341.5K
AS200845 Avatel Telecom, SA 324.9K
AS13041 Consorci de Serveis Universitaris de Catalunya 311.8K
AS12946 R Cable y Telecable Telecomunicaciones, S.A.U. 230.1K
AS174 Cogent Communications, LLC 209.4K
AS8075 Microsoft Corporation 197.1K
AS8903 Lyntia Networks S.A. 168.2K
AS35699 Adamo Telecom Iberia S.A. 154.6K
AS3356 Level 3 Parent, LLC 150.5K
AS8220 COLT Technology Services Group Limited 144.1K
AS34977 Procono S.A. 96.5K
AS8560 IONOS SE 93.4K
AS16371 acens Technologies, S.L. 89.3K
AS702 Verizon Business 80.1K
AS16625 Akamai Technologies, Inc. 78.3K

Regions / states / provinces

Network composition

How Spain's allocated IPv4 space breaks down by operator type, regional registry, and block size.

By operator category
CategoryIPv4Share
Mobile 18.49M
58.5%
Enterprise 9.38M
29.7%
ISP / Telecom 3.12M
9.9%
Academic / Research 323.3K
1.0%
Hosting / Cloud 282.9K
0.9%
Government 19.7K
0.1%
CDN 4.1K
0.0%
By regional registry (RIR)
RegistryIPv4Share
RIPE NCC 32.10M
86.5%
ARIN 4.32M
11.6%
APNIC 378.4K
1.0%
AFRINIC 220.8K
0.6%
LACNIC 91.6K
0.2%
Prefix-size distribution (network ranges by block size)
/8–/15
71
/16–/19
406
/20–/22
2,521
/23
841
/24
2,236
/25–/28
1,505
/29–/32
4,150

Routing & security

Live BGP routing footprint for Spain from our global collectors, with RPKI route-origin validation coverage.

Announced prefixes
75,294
Origin ASNs
1,329
RPKI-valid
36.8%
27,689 of 75,294 ROA-covered

RPKI-valid % = announced prefixes with a matching Route Origin Authorization. Live routing →

Web3 footprint

Spain hosts 62 observed decentralized-network nodes across 3 networks. It’s a neutral signal — it does not affect the reputation score. See the full web3 node map.

Reverse-DNS, threat intelligence & internet health

How much of Spain's address space resolves to a hostname, how much appears on public threat blocklists, how widely the population is online, and independent signals of censorship and outages.

Reverse-DNS coverage
123.1%
45.68M IPs with a PTR
Internet adoption
95.8%
of population · 2024
Censorship signal
3.3%
3,497 confirmed-blocked · 30d
Network outages
2
events · last 90d
Median speed
357 Mbps ↓
200 Mbps ↑ · 41ms
123.1% of allocated IPv4 has a PTR

Reverse-DNS + threat-blocklist footprint from our own scanning & 8 threat-intel feeds. Internet adoption from the World Bank; censorship measurements from OONI; outage detection from IODA / Georgia Tech; connection speed from Cloudflare Radar.

Frequently Asked Questions

How many IPv4 addresses are allocated to Spain?

Spain has 37,108,750 IPv4 addresses allocated across 11,730 network ranges. These allocations are managed by regional internet registries and assigned to organizations operating within the country.

What are the largest internet providers in Spain?

The top organizations in Spain by IP allocation include the major ISPs, hosting providers, and enterprises listed above. These 50 organizations collectively manage the majority of the country's IPv4 address space.

How many ASNs operate in Spain?

Spain has 50 or more registered Autonomous Systems. Each ASN represents an independently routed network, such as an ISP, cloud provider, or enterprise network.

What continent is Spain in?

Spain is located in Europe. IP address allocations in this region are managed by RIPE NCC.

Last updated: 2026-07-18 12:10:33 UTC
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