Home ASN LookupAS201977

AS201977 MZDII Miasto Zabrze

🇵🇱

Org handle: ORG-MZDI2-RIPE

RIPE NCCallocated

Announced Prefixes (BGP)

2total

2 IPv40 IPv6

IPv4 Addresses

Allocated (RIR)2,048

Announced (BGP)1,024

IPv6 Addresses

Allocated (RIR)7.9×10²⁸

Announced (BGP)0

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

🇵🇱 PL

RIR

RIPE NCC

Status

allocated

Allocated

2014-05-14

Announced Prefixes

(BGP)2

Prefix	RPKI	IRR	Last Seen
185.58.48.0/23	No ROA	RIPE	2026-10-11
185.58.50.0/23	No ROA	RIPE	2026-10-11

Allocated Prefixes

(RIR)4

Prefix	Country	RIR	Status
185.58.48.0/22	🇵🇱 PL	RIPENCC	allocated
185.58.48.0/23	🇵🇱 PL	RIPE	assigned
185.58.50.0/23	🇵🇱 PL	RIPE	assigned
2a02:5d20::/32	🇵🇱 PL	RIPENCC	allocated

All 2 announced prefixes of AS201977 →

BGP Neighbours

(seen in AS paths)

Upstreams (1)

Networks AS201977 hands its own prefixes to: transit providers, or peers at an exchange.

AS15744SILWEB COM Silesian University Of Technology, Computer Centre2

Downstreams (1)

Networks whose own prefixes AS201977 passes on: usually its customers.

AS58035UM ZABRZE Urzad Miejski W Zabrzu1

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 AS201977 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/201977

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

curl -s "https://api.ipctl.io/v1/asn/201977" | jq