256 routable1 ASes
/24 subnet
121.128.55.0/24
Where this /24 is, who announces it, and what our databases hold in it, then each of its 256 addresses, every one with its own page.
256
routable addresses
256
geolocated
1
country
1
announcing AS
1
announced prefix
0
anonymous addresses
Where it is
Addresses IP Geolocation places in each country, as a share of those it places.
- South Korea256 · 100.00%
Who announces it
Each /24 counted for the AS announcing most of it, as a share of the routable addresses.
- AS9647Seoul Metropolitan Government256 · 100.00%
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.
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- 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 |
|---|---|---|---|---|---|
| 121.128.55.0/24 | AS9647Seoul Metropolitan Government | South Korea | not found | 18 | 2026-10-02 |
Every address
121.128.55.0121.128.55.1121.128.55.2121.128.55.3121.128.55.4121.128.55.5121.128.55.6121.128.55.7121.128.55.8121.128.55.9121.128.55.10121.128.55.11121.128.55.12121.128.55.13121.128.55.14121.128.55.15121.128.55.16121.128.55.17121.128.55.18121.128.55.19121.128.55.20121.128.55.21121.128.55.22121.128.55.23121.128.55.24121.128.55.25121.128.55.26121.128.55.27121.128.55.28121.128.55.29121.128.55.30121.128.55.31121.128.55.32121.128.55.33121.128.55.34121.128.55.35121.128.55.36121.128.55.37121.128.55.38121.128.55.39121.128.55.40121.128.55.41121.128.55.42121.128.55.43121.128.55.44121.128.55.45121.128.55.46121.128.55.47121.128.55.48121.128.55.49121.128.55.50121.128.55.51121.128.55.52121.128.55.53121.128.55.54121.128.55.55121.128.55.56121.128.55.57121.128.55.58121.128.55.59121.128.55.60121.128.55.61121.128.55.62121.128.55.63121.128.55.64121.128.55.65121.128.55.66121.128.55.67121.128.55.68121.128.55.69121.128.55.70121.128.55.71121.128.55.72121.128.55.73121.128.55.74121.128.55.75121.128.55.76121.128.55.77121.128.55.78121.128.55.79121.128.55.80121.128.55.81121.128.55.82121.128.55.83121.128.55.84121.128.55.85121.128.55.86121.128.55.87121.128.55.88121.128.55.89121.128.55.90121.128.55.91121.128.55.92121.128.55.93121.128.55.94121.128.55.95121.128.55.96121.128.55.97121.128.55.98121.128.55.99121.128.55.100121.128.55.101121.128.55.102121.128.55.103121.128.55.104121.128.55.105121.128.55.106121.128.55.107121.128.55.108121.128.55.109121.128.55.110121.128.55.111121.128.55.112121.128.55.113121.128.55.114121.128.55.115121.128.55.116121.128.55.117121.128.55.118121.128.55.119121.128.55.120121.128.55.121121.128.55.122121.128.55.123121.128.55.124121.128.55.125121.128.55.126121.128.55.127121.128.55.128121.128.55.129121.128.55.130121.128.55.131121.128.55.132121.128.55.133121.128.55.134121.128.55.135121.128.55.136121.128.55.137121.128.55.138121.128.55.139121.128.55.140121.128.55.141121.128.55.142121.128.55.143121.128.55.144121.128.55.145121.128.55.146121.128.55.147121.128.55.148121.128.55.149121.128.55.150121.128.55.151121.128.55.152121.128.55.153121.128.55.154121.128.55.155121.128.55.156121.128.55.157121.128.55.158121.128.55.159121.128.55.160121.128.55.161121.128.55.162121.128.55.163121.128.55.164121.128.55.165121.128.55.166121.128.55.167121.128.55.168121.128.55.169121.128.55.170121.128.55.171121.128.55.172121.128.55.173121.128.55.174121.128.55.175121.128.55.176121.128.55.177121.128.55.178121.128.55.179121.128.55.180121.128.55.181121.128.55.182121.128.55.183121.128.55.184121.128.55.185121.128.55.186121.128.55.187121.128.55.188121.128.55.189121.128.55.190121.128.55.191121.128.55.192121.128.55.193121.128.55.194121.128.55.195121.128.55.196121.128.55.197121.128.55.198121.128.55.199121.128.55.200121.128.55.201121.128.55.202121.128.55.203121.128.55.204121.128.55.205121.128.55.206121.128.55.207121.128.55.208121.128.55.209121.128.55.210121.128.55.211121.128.55.212121.128.55.213121.128.55.214121.128.55.215121.128.55.216121.128.55.217121.128.55.218121.128.55.219121.128.55.220121.128.55.221121.128.55.222121.128.55.223121.128.55.224121.128.55.225121.128.55.226121.128.55.227121.128.55.228121.128.55.229121.128.55.230121.128.55.231121.128.55.232121.128.55.233121.128.55.234121.128.55.235121.128.55.236121.128.55.237121.128.55.238121.128.55.239121.128.55.240121.128.55.241121.128.55.242121.128.55.243121.128.55.244121.128.55.245121.128.55.246121.128.55.247121.128.55.248121.128.55.249121.128.55.250121.128.55.251121.128.55.252121.128.55.253121.128.55.254121.128.55.255
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