AS21344Powszechna Kasa Oszczednosci Bank Polski SA
PolandRegistryRIPE NCCAs of 26th September 2026, AS21344 (Powszechna Kasa Oszczednosci Bank…), a network registered in Poland with RIPE NCC, originates 4 IPv4 prefixes covering 1k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 35,810th-largest of the 79,516 networks we see originating IPv4, and the 728th-largest of 2,096 in Poland. It is seen behind 3 upstream networks, most often AS24724 (Atman Sp. z o.o.) and AS5617 (Orange Polska Spolka Akcyjna). 20% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS21344 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS21344 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.
Neighbouring networks
7
adjacent networks
- Upstreams
- 343%
- Peers
- 457%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS24724Atman Sp. z o.o. | PL | Peer | 193 | 98 |
| AS5617Orange Polska Spolka Akcyjna | PL | Peer | 172 | 96 |
| AS15830Equinix, Inc. |  NL | Peer | 23 | 13 |
Prefixes
The largest blocks AS21344 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 91.209.56.0/24 | 256 | 81/81 |
| 193.109.225.0/24 | 256 | 81/81 |
| 194.242.62.0/24 | 256 | 81/81 |
| 217.149.247.0/24 | 256 | 81/81 |
| 2001:67c:2010::/48 | 65.5k × /64 | 64/64 |
Routing health
How AS21344's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.
RPKI origin validation
- Valid20.0%1
- Invalid0.0%0
- No ROA80.0%4
Propagation
- Globally propagated90% of full-feed peers or more100.0%5
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%0.0%0
Prefix sizes
IPv4 — 4 prefixes
IPv6 — 1 prefixes
- /4865.5k × /64100.0%1
Recent changes
Announcements that started or stopped since 28th Aug 2026.
No announcement by AS21344 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.