AS21373 — NBB-AS
AS21373 announces 4 IPv4 prefixes covering 2,048 addresses and 0 IPv6 prefixes.
About this network
NBB-AS is operated by Banque Nationale de Belgique.
What it's used for
- The address space carries internal corporate infrastructure, evidenced by the consistent netname NBB across all prefixes.
- The AS announces 2048 IPv4 addresses across 4 prefixes with only 2 observed neighbours, indicating a small, self-contained corporate estate rather than a transit or access provider.
Notable
- All registrants align with the announcer, listing NbbNetAdmin and Banque Nationale de Belgique for every prefix.
- The inventory consists of four contiguous IPv4 blocks within the 193.53.48.0/22 range, reflecting a finely subdivided internal network structure.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 193.53.48.0/24
- 193.53.50.0/24
- 193.53.54.0/23
- 193.53.56.0/22
Upstream networks
Adjacent networks
BGP / ASN / CIDR
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IPv4
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IPv6
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Search Results
IPv4 Prefixes
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IPv6 Prefixes
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Total Prefixes
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Unique /24s
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED