Website Review
What is IPIP.NET?
IPIP.NET is a network-intelligence site. The page in question is a country/region statistics table: for each listed country it shows how many Autonomous Systems (ASNs) are allocated, how many are actually announced, and how many IPv4 addresses and IPv6 /64 blocks those networks hold.
The table is most useful as a rough map of internet infrastructure, not as a live routing monitor.
H3 What the columns mean in practice
- Allocated ASNs — AS numbers assigned to organizations in that country by the relevant registry.
- Announced ASNs — AS numbers actually visible in routing. A large gap between allocated and announced suggests many assigned ASNs are dormant, unused, or announced from elsewhere.
- ASN IPv4 Number — total IPv4 addresses associated with those ASNs.
- ASN IPv6 Number (/64) — IPv6 space counted in /64 blocks, which is why the numbers are enormous.
H3 Who would use it
- Network engineers and analysts comparing address concentration across markets.
- Researchers studying regional internet development or IPv4/IPv6 adoption.
- Business and market teams sizing connectivity in a country before planning infrastructure or partnerships.
- Security and threat-intel analysts who want country-level context for IP ownership.
H3 Trade-offs to keep in mind
Country-level totals hide a lot. A single ASN can span multiple countries, cloud and hosting providers register addresses in one jurisdiction but serve globally, and IPv6 /64 counts are not comparable to IPv4 address counts in any practical sense. Treat the numbers as a starting point for deeper ASN-level or prefix-level lookups.
H3 A concrete next step
If you are evaluating a market, pick one country from the table and check the gap between allocated and announced ASNs. A country with many allocated but few announced ASNs often has fragmented or underused local infrastructure — relevant if you are choosing where to place servers or peer. For authoritative registration data, cross-check with ARIN, RIPE NCC, or APNIC depending on the region.
How can I compare the number of allocated ASNs between two countries?
Read the Allocated ASNs column for each country in the same table, then subtract or divide to get the difference or ratio. The page lists every country/region with four related figures, so the comparison is a simple lookup as long as you use the same column for both countries.
H3 Example Using the figures on the page: the United States shows 32,219 allocated ASNs, Brazil 9,157, Germany 3,253 and Australia 3,042.
- Difference: 32,219 − 9,157 = 23,062 more allocated ASNs in the United States than in Brazil.
- Ratio: 32,219 ÷ 9,157 ≈ 3.5, so the United States has roughly three and a half times Brazil's allocated ASN count.
- Near-tie check: Germany (3,253) versus Australia (3,042) is a gap of 211, small enough that the ranking could shift between updates.
H3 Which column answers which question
| Column | What it tells you | When to use it |
|---|---|---|
| Allocated ASNs | ASNs officially assigned to that country/region | Comparing registry assignment volume between countries |
| Announced ASNs | ASNs actually visible in routing | Checking how much of the allocation is in active use |
| ASN IPv4 Number | IPv4 addresses associated with those ASNs | Judging address-space scale, not network count |
| ASN IPv6 Number (/64) | IPv6 /64 equivalents | Seeing IPv6 scale, which dwarfs IPv4 counts |
A country can have many allocated ASNs but far fewer announced ones, and the page shows this gap directly. For example, India lists 6,264 allocated against 2,958 announced, while Brazil lists 9,157 allocated against 8,783 announced. If your question is about real routed networks rather than paperwork, compare the announced column instead.
H3 Practical next step Decide first whether you care about assignments or live routing. For policy or market research on registry activity, use allocated ASNs; for operational questions such as how many distinct networks are reachable, use announced ASNs. Then compare like with like, and treat small gaps as noise rather than a firm ranking.
For a broader regional view, the same data is published by IPIP.NET, and RIR-level allocation statistics appear at ARIN, RIPE NCC and APNIC.
What does the difference between allocated and announced ASNs indicate about a country's internet infrastructure?
The gap between allocated and announced ASNs is a rough measure of unused or dormant routing capacity in a country: how many Autonomous System Numbers have been handed out by a regional internet registry but are not currently visible in the global routing table. A small gap suggests most allocated networks are actively routed; a large gap suggests many ASNs are held but not in use — by dormant companies, reserved blocks, or organisations that obtained a number without deploying it.
This is an infrastructure signal, not a quality score. Announced ASNs are what actually matter for reachability: they are the networks other operators can route traffic to.
How to read the ratio
| Pattern | Likely meaning |
|---|---|
| Many allocated, most announced (e.g. Brazil, Russia) | Broad, dispersed participation; many local operators actually running networks |
| Many allocated, a large share unannounced (e.g. India, Indonesia) | Allocation has run ahead of deployment, or many holders are inactive |
| High announced count with large IPv4 totals | Mature, dense infrastructure with many independent networks |
From the page, Brazil shows a notably high announced-to-allocated ratio (roughly 8,783 of 9,157), while India announces only about 2,958 of 6,264. That contrast is more informative than either number alone: it points to different stages of network build-out and different levels of registry activity, not simply to "more" or "less" internet.
Practical use
If you are choosing where to host or peer, check announced ASNs and IPv4/IPv6 counts for the country, not allocated ones. Then verify a specific network's current routing status before committing.
Next step: pick two countries you care about, compare their allocated-to-announced ratio, and cross-check a few individual ASNs in a routing database to see whether the gap reflects real dormancy or just recent allocation.
Related tools for that cross-check include Hurricane Electric BGP Toolkit and regional registry lookup via RIPE NCC for European allocations.
Which country has the most IPv6 addresses and how does it compare to IPv4?
The United States has by far the most IPv6 addresses in this dataset, with roughly 975.9 trillion /64 blocks. It also leads on IPv4, with about 1.50 billion addresses.
The scale gap
The two columns are not directly comparable: IPv4 counts individual addresses, while IPv6 is counted in /64 blocks — the standard size for one subscriber network. A single /64 contains about 18.4 quintillion addresses, so the IPv6 figures are enormous even for small countries.
| Country / Region | IPv4 addresses | IPv6 (/64 blocks) |
|---|---|---|
| United States | 1,497,299,200 | 975,910,303,763,789 |
| China | 356,442,368 | 148,181,518,405,677 |
| Germany | 114,097,664 | 72,219,796,635,914 |
| United Kingdom | 71,173,888 | 33,263,329,673,219 |
| Japan | 161,360,384 | 33,661,432,037,381 |
| Brazil | 77,606,656 | 31,373,490,721,038 |
| India | 35,222,528 | 24,757,297,422,338 |
What the comparison shows
The US holds about 4.2 times China's IPv4 space but about 6.6 times its IPv6 space, so its IPv6 lead is proportionally larger. Japan is the clearest contrast: it has more IPv4 addresses than the UK or Germany but a similar IPv6 count to the UK and less than half of Germany's. India has relatively modest IPv4 space yet a substantial IPv6 allocation, reflecting later network build-out.
If you are sizing address space for a network plan or checking regional allocation trends, look at the ratio of announced to allocated ASNs on the same page — a country can hold large blocks without them being actively routed.
How can I use this data to assess internet growth in a specific region?
Use the country/region table on Country / Region ASNs | IPIP.NET as a structural snapshot, not a growth chart. It shows, for each region, how many autonomous systems (ASNs) are allocated versus actually announced, plus allocated IPv4 addresses and IPv6 /64 blocks. Growth signals come from comparing those columns and from repeating the comparison over time.
What each column tells you
- Allocated vs. announced ASNs — A large gap suggests registered but unused or dormant networks. A narrowing gap suggests more networks are becoming active. For example, the United States shows 32,219 allocated against 18,855 announced, while Brazil shows 9,157 against 8,783 — Brazil's networks look far more fully deployed relative to their registrations.
- IPv4 numbers — Useful for scale and legacy maturity, but nearly exhausted globally, so little new growth appears here. Treat it as a baseline, not a growth indicator.
- IPv6 /64 counts — The better growth signal. Regions with large IPv6 allocations relative to their IPv4 base are building newer infrastructure rather than extending old address space.
A practical method
- Pick your region and record all four numbers.
- Compare announced/allocated ASN ratio: high ratio means active deployment; low ratio means registrations outpace real use.
- Compare IPv6 to IPv4 scale to judge whether expansion is happening on modern addressing.
- Repeat the same snapshot monthly or quarterly and track direction, since a single reading cannot show growth.
Worked example
If you are evaluating Indonesia, 3,995 allocated ASNs against 2,875 announced (about 72%) with a comparatively small IPv4 base and large IPv6 space suggests a market where new networks are still being built out and IPv6 adoption matters more than legacy IPv4 depth. By contrast, Germany's 3,253 allocated against 2,596 announced with a much larger IPv4 base points to a mature market where growth is incremental.
Caveats
Allocation reflects registry assignments, not population, users or traffic. A country can hold many ASNs for hosting and transit businesses serving global customers. Pair this data with a regional internet registry such as RIPE NCC for Europe, ARIN for North America, APNIC for Asia-Pacific, LACNIC for Latin America, or AFRINIC for Africa to confirm whether changes are genuine local growth or registration activity by foreign operators.
What factors explain the large gap between allocated and announced ASNs in countries like India?
The gap reflects how many registered network operators actually run live routing. A country can have many organisations that hold an Autonomous System Number on paper, but far fewer announce a route to the global BGP table, so only the announced ones are reachable as independent networks.
India is a clear example: 6,264 allocated ASNs versus 2,958 announced, so roughly 53% are visible in routing. The same pattern appears in Indonesia (3,995 vs 2,875), Australia (3,042 vs 1,695), Bangladesh (2,002 vs 1,551) and Singapore (725 vs 461). By contrast, Brazil (9,157 vs 8,783) and Poland (2,465 vs 2,152) announce nearly everything they allocate, so the gap is not simply a developing-country effect.
What usually drives the gap
- Multi-ASN organisations. A single ISP, bank or government agency may hold several ASNs for internal separation, redundancy or future use, but announce only one.
- Dormant registrations. ASNs obtained for a planned network, a subsidiary or a merger that never went live remain allocated but silent.
- Consolidation and acquisitions. When operators merge, the acquired ASN may be kept for administrative reasons while traffic moves to the parent's ASN.
- Local routing culture. In some markets, smaller ISPs and enterprises rely on a single upstream provider's ASN instead of announcing their own, which is common where peering is expensive or scarce.
- Registration ease versus operational cost. Getting an ASN from a regional internet registry is comparatively straightforward; running BGP, securing address space and maintaining peering or transit is not.
- Policy and market structure. State-led or incumbent-dominated markets can leave many registered entities without independent routing, while competitive markets push more operators to announce.
How to use this
If you are evaluating connectivity or doing market research, treat announced ASNs as the better proxy for the number of independently routed networks, and allocated ASNs as a measure of registered organisational interest. A large gap signals a market with many registered but inactive or dependent operators — useful when assessing peering opportunities, local hosting demand or the maturity of an internet exchange.
For a quick check on a single country, compare the two columns on Country / Region ASNs, then cross-reference a specific ASN's routing status in a looking glass or BGP data source before drawing conclusions.
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