Dashboard / ASN Lookup / AS200454

AS200454

Tomas Oliveira Valente Leite de Castro

RIPE NCC PT active Announced

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Organization

Tomas Oliveira Valente Leite de Castro

TOM-AS

Registered

Dec 19, 2022

3 years ago

IPv4 Prefixes

512 addresses

IPv6 Prefixes

258 × /48

BGP Neighbours

111

3 upstream/peer · 2 downstream · 106 collector-only

Registration

AS Number AS200454 AS Name TOM-AS Organization Tomas Oliveira Valente Leite de Castro Organization ID ORG-TOVL1-RIPE Address Avenida Elias Garcia 31, 4E, 1000-148 Lisbon, Portugal Country Portugal (PT) Registry RIPE NCC Allocated Dec 19, 2022 Record Created Dec 19, 2022 Last Updated Oct 03, 2025 Status

active

WHOIS Server whois.ripe.net AS Description TOM-AS - Tomas Oliveira Valente Leite de Castro, PT Remarks Tomas Oliveira Valente Leite de Castro, ----------------------------------------------------------------, Some things in life can never be fully appreciated nor, understood unless experienced firsthand. Some things in, networking can never be fully understood by someone who neither, builds commercia… Abuse Email [email protected]

IPv4 Prefixes

2 prefixes · 512 addresses Routing data as of 2026-10-08 00:00 UTC

Prefix	Range	Addresses
23.147.168.0/24	23.147.168.0 – 23.147.168.255	256
131.143.87.0/24	131.143.87.0 – 131.143.87.255	256

IPv6 Prefixes

3 prefixes · 258 × /48 Routing data as of 2026-10-08 00:00 UTC

Prefix	Addresses
2602:faa5::/48	2⁸⁰
2a0a:6040:aa00::/40	2⁸⁸
2a0f:b241:10::/48	2⁸⁰

BGP Neighbours

111 unique neighbours · 3 upstream/peer · 2 downstream · 106 collector-only. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries.

Upstream & peer side (3)

Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers.

AS	Name	AS paths	IPv4 sightings	IPv6 sightings
AS6939	HURRICANE - Hurricane Electric LLC	21,646	76	71,191
AS12186	GVVME - GVVME	793	913	328
AS50666	LIGAT LigaT Telecom Sociedade Unipessoal LDA	266	345	0

Downstream side (2)

Networks seen to the right of this AS in BGP paths — networks whose routes it carries, typically its customers (downstreams).

AS	Name	AS paths	IPv4 sightings	IPv6 sightings
AS33733	CASTRO-TELECOM - CASTRO TELECOM LLC	254	329	0
AS19577	CASTRO-TELECOM - CASTRO TELECOM LLC	253	330	0

Collector-only (106)

Networks seen to the left of this AS only when they peer directly with a RIPE RIS route collector, so the adjacency may be an artefact of that peering; many of them also appear on the downstream side.

AS	Name	AS paths	IPv6 sightings
AS13335	CLOUDFLARENET - Cloudflare, Inc.	54	618
AS393577	TRITAN-DEVELOPMENT - Tritan Development	48	113
AS32097	WII - WholeSale Internet, Inc.	20	36
AS5056	AUREON-5056 - Aureon Network Services	16	50
AS10242	USINTERNET - US Internet Corp	12	12
AS11232	MIDCO-NET - Midcontinent Communications	10	27
AS400146	DIAMOND-STATE-NETWORKS - DIAMOND STATE NETWORKS, LLC	10	10
AS10310	YAHOO-1 - Yahoo Holdings Inc.	9	20
AS36236	NETACTUATE - NetActuate, Inc	8	21
AS215172	JIANYUELAB-AS JIANYUELAB LTD	8	18
AS44324	MOEDOVE-AS MoeDove LLC	7	15
AS52025	PARADOXNETWORKS-LIMITED ParadoxNetworks Limited	7	13
AS53597	HOYOS-CONSULTING-LLC - Hoyos Consulting LLC	7	10
AS2495	KANREN - Kansas Research and Education Network	6	8
AS13329	KFN-001 - Kansas Fiber Network, LLC	5	5
AS216107	FRUMENTUM Noah van der Aa trading as Frumentum Media	5	10
AS2572	MORENET - University of Missouri - dba the Missouri Research and Education Network (MOREnet)	4	11
AS18451	LESNET - LES.NET	4	7
AS34927	iFog-GmbH iFog GmbH	4	5
AS64289	MACARNE - Macarne.com	4	8
AS42	WOODYNET-1 - WoodyNet, Inc.	2	52
AS1003	ANDREWNET - andrewnet	2	5
AS8674	NETNOD-IX Netnod AB	2	4
AS11317	GPN - Great Plains Network	2	2
AS11588	LAMBDA-BB - Lambda	2	2
AS12198	JSMSR-LLC - JSMSR Network	2	14
AS14593	SPACEX-STARLINK - Space Exploration Technologies Corporation	2	82
AS16909	IMPUT - imput	2	5
AS23404	RITTERNET - Ritter Communications	2	4
AS27523	KAWAII-NETWORKS - Kawaii Networks LLC	2	4
AS40536	PIXELDECK - PixelDeck Hosting, LLC	2	6
AS44354	BROCK BROCK VOJKOVIC	2	5
AS50763	MCKAYCOM Robert McKay	2	3
AS52210	ACCURIS-TECHNOLOGIES - Accuris Technologies Ltd.	2	2
AS53610	METRO-COMMUNICATIONS-COMPANY - Metro Communications Company, Inc.	2	2
AS214329	BGP-Network BGP Network LLC	2	2
AS395662	OZARKSGO - OzarksGo, LLC	2	2
AS399898	CONEXON-CONNECT - Conexon Connect	2	12
AS400818	AUSRA-SYSTEMS - Ausra LLC	2	7
AS401538	NOVA86 - Nova86	2	4
AS835	GOCODEIT-EDGE - GoCodeIT Inc	1	1
AS2906	AS-SSI - Netflix Streaming Services Inc.	1	7
AS3856	PCH-AS - Packet Clearing House, Inc.	1	1
AS4150	SUPRANET-WIS - SupraNet Communications, Inc.	1	1
AS7488	CNSERVER-AP-AS - CNServer LLC	1	1
AS10750	MARK-TWAIN - Mark Twain Rural Telephone Co.	1	1
AS11320	LIGHTEDGE-AS-02 - LightEdge Solutions	1	2
AS11597	MW-KANSAS - Mercury Broadband	1	3
AS11708	LINKCITY - City of North Kansas City, MO	1	1
AS13807	GREAT-PLAINS-COMMUNICATIONS - Great Plains Communications LLC	1	1
AS14061	DIGITALOCEAN-ASN - DigitalOcean, LLC	1	12
AS14371	PBNET - Paul Bunyan Communications	1	1
AS15164	UPNLLC - Unite Private Networks LLC.	1	1
AS15165	MTC-LRCOMMUNICATIONS - Mutual Telephone Company	1	1
AS17303	NETWORK-ADVISORS - Disaster Networks, LLC	1	2
AS20473	AS-VULTR - The Constant Company, LLC	1	1
AS21737	SPRINGNET2-NET - SpringNet	1	1
AS21738	ROZINT - Rozint	1	6
AS23428	SERVERFORGE - ServerForge LLC	1	3
AS25735	SLOTH-NET - Sloth Networks	1	1
AS26156	VERUS - Verus, LLC	1	1
AS26415	VERISIGN-INC - VeriSign Global Registry Services	1	2
AS26457	NONEXISTE-AS - nonexiste.net	1	1
AS27425	ASN-IDK-27425 - IdeaTek Telcom, LLC	1	72
AS30174	UTA - United Telephone Association, Inc.	1	1
AS30690	KAZEHANA-NETWORKS - Kazehana Networks LLC	1	4
AS32002	RACKGENIUS - RackGenius	1	2
AS32030	VOIPSTER - VoIPster Communications, INC.	1	1
AS32943	WEB-OF-NEVADA-01 - Web of Nevada	1	1
AS40138	MDNET - Mach Dilemma, LLC	1	1
AS40663	INTERNET-SPEECH-AND-PRIVACY-LLC - IncogNet LLC	1	1
AS40916	EVALSE - Evalse, LLC	1	1
AS44421	EVE-NET Yifu Yu	1	3
AS46515	TOONTOWN - Toons of the World Foundation	1	1
AS46824	NAMECRANE - NameCrane LLC	1	1
AS53343	SCN - sc Network	1	1
AS53356	FREE RANGE CLOUD - Free Range Cloud Hosting Inc.	1	1
AS54113	FASTLY - Fastly, Inc.	1	4
AS54148	DYNAMIC-QUANTUM-NETWORKS - Dynamic Quantum Networks	1	4
AS54566	SERVIKUS - Servikus LLC	1	1
AS60326	DEADBEEF-AS 0xDEADBEEF LTD	1	4
AS63066	7HOOPNETWORK - 7Hoop Network Telecom, LLC	1	35
AS134094	SERVERFIELD-AS - Serverfield Co., Ltd.	1	1
AS150289	SUNYZ-AS-AP - Sun Yanzheng	1	2
AS200242	de-theirs Ember Ana Reimer	1	5
AS202562	APERTURE-NETWORKS Roelf Wichertjes	1	1
AS203729	igloo22225 June Slater	1	2
AS205018	IRSYAD-AS-ID Irsyad Khoirul Anwar	1	2
AS206924	BENJOJONET Ben Cartwright-Cox	1	1
AS210645	Dominik_Dobrowolski DOMINIK DOBROWOLSKI	1	1
AS210667	SMISHCRAFT Adam Goodenough	1	6
AS214022	VIRTNET Joseph Rawlings trading as Virtnet.bond	1	1
AS214344	Hanxun-Xu Hanxun Xu	1	1
AS214806	FEMBOY Femboy Cyber Networks LLC	1	1
AS215248	BastiaanBrink Bastiaan Mathijs Brink	1	5
AS216096	SECUREPEAK Alex Terrats Ciberseguretat SLU	1	4
AS328112	Linux Based Systems Design SA (Pty) Ltd - Linux Based Systems Design SA (Pty) Ltd	1	1
AS393796	GBTA-ASN - Golden Belt Telephone	1	1
AS397732	NETVISION - Net Vision Communications, LLC	1	1
AS399503	AMERICOM - Dice Carrier Services LLC	1	1

Showing the top 100 of 106 by AS paths.

Raw RDAP Response

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        "----------------------------------------------------------------",
        "Some things in life can never be fully appreciated nor",
        "understood unless experienced firsthand. Some things in",
        "networking can never be fully understood by someone who neither",
        "builds commercial networking equipment nor runs an operational",
        "network.",
        "For full list of Communities available please visit https://bgp.tools/communities/200454",
        "RPKI invalid routes are dropped",
        "+-------------------+",
        "| Network Upstreams |",
        "------------------- Hurricane Electric LLC -------------------",
        "------------------- Cogent Communications --------------------",
        "--------------------------- GVVME ----------------------------",
        "--------------------------- EDGOO ----------------------------",
        "+-------------------------+",
        "| Peering - IX and others |",
        "---------------------------- KCIX ----------------------------",
        "--------------------------- LIS-IX ---------------------------",
        "------------------------- Cloudflare -------------------------",
        "-------------------------- AUSRA LLC -------------------------",
        "+-------------+",
        "| Downstreams |",
        "--------------------------AS214913 ---------------------------",
        "------------------------ RIPE K-ROOT -------------------------",
        "------------------------ Sílvio Silva ------------------------",
        "--------------------------- AS112 ----------------------------",
        "+---------------------------------------------------+",
        "| Abuse issues please contact [email protected] |"
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Contact details of private individuals are redacted.