AS21859: IP address ranges and network type
AS21859 holds 1,604 IPv4 segments covering 656,384 addresses across 43 countries, 23% of them in United States as of 14 September 2026. By usage type it is 69% datacenter and 18% gateway / NAT egress.
Network usage types in AS21859
What kind of address space a network is made of decides what kind of proxy risk it carries: datacenter space is where hosting-based proxies and VPN exits live; residential broadband and mobile space is where home-broadband proxies and dial-up pools live. The share is by IPv4 segment.
| Usage type | Segments | Share |
|---|---|---|
| Datacenter | 109 | 68.6% |
| Gateway / NAT egress | 28 | 17.6% |
| Residential broadband | 18 | 11.3% |
| CDN node | 2 | 1.3% |
| Mobile network | 1 | 0.6% |
| Organisation | 1 | 0.6% |
Countries where AS21859 has addresses
Share of the network's IPv4 segments by the country each segment is located in. A network whose space is spread over many countries is usually a hosting or transit operator rather than a domestic broadband provider.
| Country / region | Segments | Share |
|---|---|---|
| United States | 370 | 23.1% |
| China | 305 | 19.0% |
| Singapore | 111 | 6.9% |
| Japan | 82 | 5.1% |
| Vietnam | 59 | 3.7% |
| Indonesia | 55 | 3.4% |
| Germany | 52 | 3.2% |
| Brazil | 47 | 2.9% |
| Thailand | 45 | 2.8% |
| Philippines | 43 | 2.7% |
| India | 42 | 2.6% |
| Malaysia | 41 | 2.6% |
| United Kingdom | 34 | 2.1% |
| Russia | 31 | 1.9% |
| South Korea | 30 | 1.9% |
| United Arab Emirates | 29 | 1.8% |
| Mexico | 23 | 1.4% |
| Pakistan | 19 | 1.2% |
| France | 18 | 1.1% |
| Australia | 15 | 0.9% |
| Other (23 countries) | 153 | 9.5% |
Look up a single address in AS21859
Free, no signup: curl https://ip99.com/v1/ip/2.27.161.0 returns the country, ASN, usage type and a risk score for one address — see the API documentation. For scoring at volume, pricing; for what the score does and does not mean, what an IP risk score means.
Go deeper
How to tell whether an address is a proxy, VPN or datacenter · Rotating residential proxies and dial-up pools · Residential proxy exits observed this week · IP ranges by country
FAQ
How many IP addresses does AS21859 have?
In the IP99 geolocation database AS21859 holds 1,604 IPv4 segments covering 656,384 addresses as of 14 September 2026. Counts are by located segment, not by BGP announcement, so they can differ from a routing table.
Is AS21859 a residential or a datacenter network?
69% of its IPv4 segments are classified as datacenter and 18% as gateway / NAT egress. The classification is per segment: one network can carry both kinds of space, which is why a lookup of the exact address is more useful than the network-level share.
Which countries does AS21859 cover?
AS21859 has addresses in 43 countries; the largest share is United States (23%), followed by China (19%).