65,536 routable2 ASes
/16 subnet
156.21.0.0/16
Where this subnet is, who announces it, and what our databases hold in it. Below, every /24 inside it; open one for its addresses.
65,536
routable addresses
65,536
geolocated
1
country
2
announcing ASes
3
announced prefixes
1
anonymous addresses
Where it is
Addresses IP Geolocation places in each country, as a share of those it places.
- United States65,536 · 100.00%
Who announces it
Each /24 counted for the AS announcing most of it, as a share of the routable addresses.
What the databases see
Addresses each address-keyed database holds in this block, as a share of its routable addresses. Counts overlap: one address can be in several.
- 0.00%
- None here
- None here
- None here
- None here
- None here
- Hosting IP18,68828.52%
- None here
- None here
- None here
- None here
- 0.00%
- None here
Announced prefixes
Every prefix inside this block that BGP Route saw announced, with its origin and RPKI status.
| PREFIX | ORIGIN | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|---|
| 156.21.0.0/23 | AS31817Progress Software Corp - CSG | United States | not found | 17 | 2026-10-02 |
| 156.21.16.0/21 | AS17378TierPoint, LLC | United States | not found | 17 | 2026-10-02 |
| 156.21.128.0/18 | AS17378TierPoint, LLC | United States | not found | 17 | 2026-10-02 |
Every /24 inside it
00 · Evaluate
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01 · License
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