Home ASN LookupAS57248

AS57248 WISPER-AS Wisper s.r.o.

🇸🇰

Org handle: ORG-Ws54-RIPE

RIPE NCCallocated

Announced Prefixes (BGP)

6total

6 IPv40 IPv6

IPv4 Addresses

Allocated (RIR)3,072

Announced (BGP)4,608

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)0

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

🇸🇰 SK

RIR

RIPE NCC

Status

allocated

Allocated

2011-09-06

Listed on the threat map (2026-10-09)

#1 in Slovakia (3 flagged networks located there)

Large hosting providers appear because attackers rent their servers, not necessarily because of the operator.

Announced Prefixes

(BGP)6

Prefix	RPKI	IRR	Last Seen
91.226.112.0/22	No ROA	RIPE	-
91.226.112.0/23	No ROA	-	-
91.227.224.0/22	No ROA	RIPE	-
185.151.0.0/22	No ROA	RIPE	-
185.151.0.0/23	No ROA	-	-
185.151.2.0/23	No ROA	-	-

Allocated Prefixes

(RIR)3

Prefix	Country	RIR	Status
91.226.112.0/22	🇸🇰 SK	RIPENCC	assigned
91.227.224.0/22	🇸🇰 SK	RIPENCC	assigned
185.151.0.0/22	🇸🇰 SK	RIPENCC	allocated

All 6 announced prefixes of AS57248 →

BGP Neighbours

(seen in AS paths)

Upstreams (2)

Networks AS57248 hands its own prefixes to: transit providers, or peers at an exchange.

AS31117ENERGOTEL A.S3
AS48326Datanetworks S.R.O3

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 AS57248 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/57248

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

curl -s "https://api.ipctl.io/v1/asn/57248" | jq