IP ranges in Belgium

This page lists the IPv4 address blocks registered to organisations in Belgium and checks single addresses. The basics of IP addresses, masks and subnets are in Networks; the other countries are in IP ranges by country.

Belgium in numbers

The 48 countries here hold 725,908,608 IPv4 addresses; Belgium has 12,234,880 in 958 blocks, 1.69% of the total, rank 13 of 48. The country just above it is Finland with 13,859,392 addresses (1.91%), the one just below Denmark with 12,007,968 addresses (1.65%). There are 958 blocks: 666 allocated (69.5%) and 292 assigned (30.5%). The oldest block was delegated in 1984 and the newest in 2026; 2009 is the year with the most new blocks. The largest share of the addresses, 6,694,784 of 12,234,880 (54.7%), came in the 2000s. The same RIPE file lists 326 IPv6 prefixes and 388 AS numbers for Belgium.

Check an IP address

Type an IPv4 address. The answer comes from the Sypex Geo database on this server; like every geolocation database it can be wrong, especially about the city.

Where the list comes from

IP addresses are handed out by five regional internet registries. For Belgium the registry is RIPE NCC, which publishes every day which address blocks it has delegated to which country. A block registered in Belgium is usually used there, but not always: a company may use its addresses abroad, and a VPN makes any visitor look like someone else.

The table below is the RIPE file of 2026-10-29: 958 blocks with 12,234,880 addresses. The largest block holds 1,048,576 addresses and starts at 109.128.0.0.

Get the list yourself

Download the statistics file of RIPE NCC:

curl -s -O https://ftp.ripe.net/pub/stats/ripencc/delegated-ripencc-latest

The first line says when it was made; the sixth field is the date:

head -1 delegated-ripencc-latest

2|ripencc|1793314799|167770|19700101|20261029|+0100

Each later line is one block: registry, country, type, first address, number of addresses, date and status. The IPv4 blocks of Belgium, sorted by first address:

awk -F'|' '$2=="BE" && $3=="ipv4"' delegated-ripencc-latest | sort -t'|' -k1,1V | head -3

ripencc|BE|ipv4|2.56.171.0|256|20200430|allocated ripencc|BE|ipv4|2.57.40.0|1024|20190315|allocated ripencc|BE|ipv4|2.58.108.0|1024|20190321|allocated

How many blocks, and how many addresses they hold together:

awk -F'|' '$2=="BE" && $3=="ipv4"' delegated-ripencc-latest | wc -l

958

awk -F'|' '$2=="BE" && $3=="ipv4" {s+=$5} END {print s}' delegated-ripencc-latest

12234880

allocated means RIPE gave the block to a provider (a LIR) to hand out further; assigned means it went to an end user directly.

Who owns a block

The statistics name no owners. The RIPE database does: ask it with whois for any address of a block, and look at the lines netname, descr and org:

whois 109.128.0.1

All IPv4 blocks in Belgium

From the RIPE file of 2026-10-29, sorted by address. The last address is the first one plus the size minus one.

Article author: Arthur Isaev