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AS21054

Natwest Markets PLC
Announced prefixes
23
Upstreams
3
Peers
0
Downstreams
0

Adjacent ASNs

UpstreamAS1273AS1273AS2856AS2856AS32787AS32787AS21054

Neighbor nodes aren't clickable. To look up an ASN, use the ASN lookup page

All Neighbor ASNs

Upstream3

Buys transit from them

  • AS1273
  • AS2856
  • AS32787

Peer0

Settlement-free traffic exchange

None

Downstream0

Buys transit from this AS

None

Recent Prefix Changes

latest 10

IP prefixes this ASN started or stopped announcing (derived by diffing successive data syncs).

  • Announced155.136.144.0/242026-08-30
  • Announced155.136.146.0/242026-08-30
  • Withdrawn155.136.144.0/242026-08-29
  • Withdrawn155.136.146.0/242026-08-29
  • Announced155.136.144.0/242026-08-28
  • Announced155.136.146.0/242026-08-28
  • Withdrawn155.136.144.0/242026-07-21
  • Withdrawn155.136.146.0/242026-07-21
  • Announced155.136.144.0/242026-07-19
  • Announced155.136.146.0/242026-07-19

Data: local · Updated 2026-09-03 12:01:13