65,536 routable2 ASes
/16 subnet
42.81.0.0/16
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
14
announced prefixes
80
anonymous addresses
Where it is
Addresses IP Geolocation places in each country, as a share of those it places.
- China65,536 · 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.
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 |
|---|---|---|---|---|---|
| 42.81.0.0/16 | AS58542Tianjij,300000 | China | Valid | 17 | 2026-10-02 |
| 42.81.37.0/24 | AS17638ASN for TIANJIN Provincial Net of CT | China | Valid | 1 | 2026-10-29 |
| 42.81.38.0/23 | AS17638ASN for TIANJIN Provincial Net of CT | China | Valid | 1 | 2026-10-29 |
| 42.81.40.0/23 | AS17638ASN for TIANJIN Provincial Net of CT | China | Valid | 1 | 2026-10-29 |
| 42.81.60.0/24 | AS58542Tianjij,300000 | China | Invalid, too specific | 3 | 2026-10-21 |
| 42.81.78.0/24 | AS17638ASN for TIANJIN Provincial Net of CT | China | Valid | 1 | 2026-10-29 |
| 42.81.79.0/24 | AS17638ASN for TIANJIN Provincial Net of CT | China | Valid | 1 | 2026-10-29 |
| 42.81.138.0/24 | AS58542Tianjij,300000 | China | Valid | 17 | 2026-10-02 |
| 42.81.168.0/24 | AS58542Tianjij,300000 | China | Valid | 17 | 2026-10-02 |
| 42.81.169.0/24 | AS58542Tianjij,300000 | China | Valid | 17 | 2026-10-02 |
| 42.81.170.0/24 | AS58542Tianjij,300000 | China | Valid | 17 | 2026-10-02 |
| 42.81.171.0/24 | AS58542Tianjij,300000 | China | Valid | 17 | 2026-10-02 |
| 42.81.172.0/24 | AS58542Tianjij,300000 | China | Valid | 17 | 2026-10-02 |
| 42.81.173.0/24 | AS58542Tianjij,300000 | China | Valid | 17 | 2026-10-02 |
Every /24 inside it
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