AS200454 — TOM-AS Tomas Oliveira Valente Leite de Castro

AS200454 announces 1 IPv4 prefixes covering 256 addresses and 3 IPv6 prefixes.

About this network

TOM-AS is held by Tomas Oliveira Valente Leite de Castro.

What it's used for

• The address space carries prefixes registered to CASTRO TELECOM LLC with netnames CASTRO-TELECOM and MEOWNET.
• The AS announces 512 IPv4 addresses and 3 IPv6 prefixes, while maintaining 109 observed neighbours.
• This high neighbour-to-address ratio indicates a transit or peering-focused role rather than a large access network.

Notable

• The RDAP registrant for both announced IPv4 prefixes is CASTRO TELECOM LLC, which aligns with the individual holder's name.
• The inventory consists of two distinct IPv4 /24 blocks and three IPv6 prefixes, including a large /40 allocation.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 23.147.168.0/24
• 2602:faa5::/48
• 2a0a:6040:aa00::/40
• 2a0f:b241:10::/48

Upstream networks

• AS6939 Hurricane Electric LLC
• AS12186 GVVME
• AS50666 LigaT Telecom Sociedade Unipessoal LDA
• AS34927 iFog GmbH
• AS52025 ParadoxNetworks Limited

Downstream networks

• AS33733 CASTRO TELECOM LLC
• AS19577 CASTRO TELECOM LLC

Adjacent networks

• AS12186 GVVME
• AS6939 Hurricane Electric LLC
• AS33733 CASTRO TELECOM LLC
• AS50666 LigaT Telecom Sociedade Unipessoal LDA
• AS19577 CASTRO TELECOM LLC
• AS52025 ParadoxNetworks Limited
• AS34927 iFog GmbH

Routing security

• RPKI: 3 valid, 0 invalid and 3 not-found announcements; 7 ROAs.
• ASPA: none published.
• IRR: 67% of announcements registered; 21 route objects.
• Listed in as-sets: AS-BBIX-T-V6, AS-CASTRO, AS-CASTRO, AS-CASTRO, AS-HURRICANEV6, AS-IFOG, AS-IFOG, AS-IPV6, AS-LEGACY, AS-LEGACY, AS-LEGACY, AS-LEITECASTRO, AS-LND, AS-PORTUGAL, AS-PT, AS-RIS-RRC25, AS-TOMAS, AS-TRANSROUTE-SPEC, AS200952:AS-PEERS, AS213886:AS-UPSTREAMS.

Internet exchanges

• Kansas City Internet Exchange — Kansas City, United States