Home ASN LookupAS15391

AS15391 SYSCL1 Sysclay Sp. z o. o.

🇵🇱

Org handle: ORG-SSZO103-RIPE

RIPE NCCallocated

Announced Prefixes (BGP)

12total

7 IPv45 IPv6

IPv4 Addresses

Allocated (RIR)6,144

Announced (BGP)6,144

IPv6 Addresses

Allocated (RIR)3.1×10³⁰

Announced (BGP)3.1×10³⁰

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

🇵🇱 PL

RIR

RIPE NCC

Status

allocated

Allocated

2015-09-15

Announced Prefixes

(BGP)12

Prefix	RPKI	IRR	Last Seen
45.145.208.0/22	No ROA	RIPE	2026-10-11
45.146.44.0/22	No ROA	RIPE	2026-10-11
45.155.0.0/22	No ROA	RIPE	2026-10-11
185.122.136.0/22	No ROA	RIPE	2026-10-11
185.242.32.0/22	No ROA	RIPE	2026-10-11
193.22.240.0/23	No ROA	RIPE	2026-10-11
193.22.246.0/23	No ROA	RIPE	2026-10-11
2a05:d8c0::/29	No ROA	RIPE	2026-10-11
2a06:83c0::/29	No ROA	RIPE	2026-10-11
2a0e:e1c0::/29	No ROA	RIPE	2026-10-11

1-10 of 12

1 / 2

Allocated Prefixes

(RIR)12

Prefix	Country	RIR	Status
45.145.208.0/22	🇵🇱 PL	RIPENCC	allocated
45.146.44.0/22	🇵🇱 PL	RIPENCC	allocated
45.155.0.0/22	🇵🇱 PL	RIPENCC	allocated
185.122.136.0/22	🇵🇱 PL	RIPENCC	allocated
185.242.32.0/22	🇵🇱 PL	RIPENCC	allocated
193.22.240.0/23	🇵🇱 PL	RIPENCC	allocated
193.22.246.0/23	🇵🇱 PL	RIPENCC	allocated
2a05:d8c0::/29	🇵🇱 PL	RIPENCC	allocated
2a06:83c0::/29	🇵🇱 PL	RIPENCC	allocated
2a0e:e1c0::/29	🇵🇱 PL	RIPENCC	allocated

1-10 of 12

1 / 2

All 12 announced prefixes of AS15391 →

BGP Neighbours

(seen in AS paths)

Upstreams (2)

Networks AS15391 hands its own prefixes to: transit providers, or peers at an exchange.

AS31242TKPSA P4 Sp. Z O.O9
AS12912TMPL T Mobile Polska S.A3

Transfer History

Registry transfers of AS15391 between organisations.

AS15391Transfer · 2022-11-18
FORMAT sp. z o.o.
RIPE NCC
→
Sysclay Sp. z o. o.
RIPE NCC
AS15391Transfer · 2018-10-18
WIGANET Jadwiga Gutkowska
RIPE NCC
→
FORMAT sp. z o.o.
RIPE NCC

Date	Resource	From	To	Type
2022-11-18	AS15391	FORMAT sp. z o.o. RIPE NCC	Sysclay Sp. z o. o. RIPE NCC	Transfer
2018-10-18	AS15391	WIGANET Jadwiga Gutkowska RIPE NCC	FORMAT sp. z o.o. RIPE NCC	Transfer

ASPA

No ASPA

Abuse Contact

External Links

RIPE Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS15391 should publish an ASPA object
IPv4 transfers in the RIPE NCC regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/15391

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/15391" | jq