National Bank Holdings Corporation

Data as of 2026-08-30
BGP inherited
Cluster stats
Netblocks6 · 900 IPv4 addresses
IPv6 1 prefix (largest 2a00:2381:3798::/48)
Registered in United States (3) · Egypt (1) · KZ (1)
All fragments 504 blocks across 34 clusters
Cluster ID231655590
RegistryAFRINIC
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 18 shared RIR contact/maintainer handles
Registry names 5 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (6)

⬇ export CSV
CIDR Org name Registry Status Confidence
63.76.132.0/24 National Bank Holdings Corporation BGP ANNOUNCED ● high
72.166.82.0/24 National Bank Holdings Corporation BGP ANNOUNCED ● high
216.73.191.0/24 National Bank Holdings Corporation ARIN DIRECT ALLOCATION ● high
92.46.54.136/30 NATIONAL_BANK RIPE ASSIGNED PA ● low
217.52.23.0/25 National_Bank AFRINIC ASSIGNED PA ● low
2a00:2381:3798::/48 NATIONAL-BANK RIPE AGGREGATED-BY-LIR ● low

IPv6 ranges (1)

Network trust

what's this?
RPKI hygiene: C how networks compare →
50.0% of checked blocks have valid RPKI ROA coverage (3 of 6)
Possible discrepancies (1)

These blocks are registered to National Bank Holdings Corporation but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

2a00:2381:3798::/48 /48 authorized for AS2856 — British Telecommunications Limited

NIC Handles

AS11275 AS38-AFRINIC AS38-AFRINIC BTNET-MNT BUCHT2-ARIN DUMY-RIPE DUMY-RIPE KNIC-MNT M-OSAM MS22-AFRINIC MS22-AFRINIC MURPH657-ARIN +6 more