What is ASN AS200454?

ASN AS200454 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS200454?

AS200454 is listed under Tomas Oliveira Valente Leite de Castro.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS200454 Tomas Oliveira Valente Leite de Castro

Tomas Oliveira Valente Leite de Castro leitecastro.com

PT 7 Routes

AS Data

AS200454

AS200454 – Tomas Oliveira Valente Leite de Castro

AS Number	200454
AS Name	TOM-AS
Organization	Tomas Oliveira Valente Leite de Castro (org-tovl1-ripe)
Country	PT
Website	leitecastro.com
Number of IPv4 Routes	4
Number of IPv6 Routes	3
ASN type	INDIVIDUAL
Allocation Status	ASSIGNED
Registry	RIPE
Date Allocated	2022-12-19

ASN Intelligence API for production workflows

Use ASN data for AS200454 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
199.16.240.0/22	AS200454	Tomas Oliveira Valente Leite de Castro	Alpha1Servers, LLC	1024
64.93.80.0/22	AS200454	Tomas Oliveira Valente Leite de Castro	CASTRO TELECOM LLC	1024
2a0f:b241:10::/48	AS200454	Tomas Oliveira Valente Leite de Castro	GoCodeIT Inc	~1×10²⁴
131.143.87.0/24	AS200454	Tomas Oliveira Valente Leite de Castro	CASTRO TELECOM LLC	256
2a0a:6040:aa00::/40	AS200454	Tomas Oliveira Valente Leite de Castro	Potato Telekom f.k.a Batatas & Cenouras Telegraph Co	~309×10²⁴
23.147.168.0/24	AS200454	Tomas Oliveira Valente Leite de Castro	CASTRO TELECOM LLC	256
2602:faa5::/36	AS200454	Tomas Oliveira Valente Leite de Castro	CASTRO TELECOM LLC	~5×10²⁷

Raw Whois Response

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to 'AS200352 - AS200535'

as-block:       AS200352 - AS200535
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2026-04-08T13:28:00Z
last-modified:  2026-04-08T13:28:00Z
source:         RIPE

% Information related to 'AS200454'

% Abuse contact for 'AS200454' is 'tomas.leite.castro@tecnico.ulisboa.pt'

aut-num:        AS200454
descr:          Tomas Oliveira Valente Leite de Castro
as-name:        TOM-AS
remarks:        ----------------------------------------------------------------
remarks:        Some things in life can never be fully appreciated nor
remarks:        understood unless experienced firsthand. Some things in
remarks:        networking can never be fully understood by someone who neither
remarks:        builds commercial networking equipment nor runs an operational
remarks:        network.
remarks:        ----------------------------------------------------------------
org:            ORG-TOVL1-RIPE
remarks:        For full list of Communities available please visit https://bgp.tools/communities/200454
remarks:        RPKI invalid routes are dropped
remarks:        +-------------------+
remarks:        | Network Upstreams |
remarks:        +-------------------+
remarks:        ------------------- Hurricane Electric LLC -------------------
mp-import:      afi ipv4.unicast from AS6939 action pref=70; accept ANY
mp-import:      afi ipv6.unicast from AS6939 action pref=70; accept ANY
mp-export:      afi ipv4.unicast to AS6939 announce AS-LEGACY
mp-export:      afi ipv6.unicast to AS6939 announce AS-LEGACY
remarks:        ------------------- Cogent Communications --------------------
mp-import:      afi ipv4.unicast from AS174 action pref=50; accept ANY
mp-import:      afi ipv6.unicast from AS174 action pref=50; accept ANY
mp-export:      afi ipv4.unicast to AS174 announce AS-LEGACY
mp-export:      afi ipv6.unicast to AS174 announce AS-LEGACY
remarks:        --------------------------- GVVME ----------------------------
mp-import:      afi ipv4.unicast from AS12186 action pref=70; accept ANY
mp-import:      afi ipv6.unicast from AS12186 action pref=70; accept ANY
mp-export:      afi ipv4.unicast to AS12186 announce AS-LEGACY
mp-export:      afi ipv6.unicast to AS12186 announce AS-LEGACY
remarks:        --------------------------- EDGOO ----------------------------
mp-import:      afi ipv4.unicast from AS47787 action pref=70; accept ANY
mp-import:      afi ipv6.unicast from AS47787 action pref=70; accept ANY
mp-export:      afi ipv4.unicast to AS47787 action community.append(0:1930, 12833:1930); announce AS-LEGACY
mp-export:      afi ipv6.unicast to AS47787 action community.append(0:1930, 12833:1930); announce AS-LEGACY
remarks:        +-------------------------+
remarks:        | Peering - IX and others |
remarks:        +-------------------------+
remarks:        ---------------------------- KCIX ----------------------------
mp-import:      afi ipv4.unicast from AS40542 action pref=200; accept AS-KCIX-MEMBERS
mp-import:      afi ipv6.unicast from AS40542 action pref=200; accept AS-KCIX-MEMBERS
mp-export:      afi ipv4.unicast to AS40542 announce AS-LEGACY
mp-export:      afi ipv6.unicast to AS40542 announce AS-LEGACY
remarks:        --------------------------- LIS-IX ---------------------------
mp-import:      afi ipv4.unicast from AS33733 action pref=200; accept AS33733:AS-RSPEERS
mp-import:      afi ipv6.unicast from AS33733 action pref=200; accept AS33733:AS-RSPEERS
mp-export:      afi ipv4.unicast to AS33733 announce AS-LEGACY
mp-export:      afi ipv6.unicast to AS33733 announce AS-LEGACY
remarks:        ------------------------- Cloudflare -------------------------
mp-import:      afi ipv4.unicast from AS13335 action pref=400; accept AS-CLOUDFLARE
mp-import:      afi ipv6.unicast from AS13335 action pref=400; accept AS-CLOUDFLARE
mp-export:      afi ipv4.unicast to AS13335 announce AS-LEGACY
mp-export:      afi ipv6.unicast to AS13335 announce AS-LEGACY
remarks:        -------------------------- AUSRA LLC -------------------------
mp-import:      afi ipv4.unicast from AS400818 action pref=400; accept AS-AUSRA
mp-import:      afi ipv6.unicast from AS400818 action pref=400; accept AS-AUSRA
mp-export:      afi ipv4.unicast to AS400818 announce AS-LEGACY
mp-export:      afi ipv6.unicast to AS400818 announce AS-LEGACY
remarks:        +-------------+
remarks:        | Downstreams |
remarks:        +-------------+
remarks:        --------------------------AS214913 ---------------------------
mp-import:      afi ipv4.unicast from AS214913 action pref=400; accept AS214913
mp-import:      afi ipv6.unicast from AS214913 action pref=400; accept AS214913
mp-export:      afi ipv4.unicast to AS214913 announce ANY
mp-export:      afi ipv6.unicast to AS214913 announce ANY
remarks:        ------------------------ RIPE K-ROOT -------------------------
mp-import:      afi ipv4.unicast from AS25152 action pref=400; accept RS-KROOT
mp-import:      afi ipv6.unicast from AS25152 action pref=400; accept RS-KROOT-V6
mp-export:      afi ipv4.unicast to AS25152 announce ANY
mp-export:      afi ipv6.unicast to AS25152 announce ANY
remarks:        ------------------------ S�lvio Silva ------------------------
mp-import:      afi ipv4.unicast from AS215153 accept AS215153:AS-CONE
mp-import:      afi ipv6.unicast from AS215153 accept AS215153:AS-CONE
mp-export:      afi ipv4.unicast to AS215153 announce ANY
mp-export:      afi ipv6.unicast to AS215153 announce ANY
remarks:        --------------------------- AS112 ----------------------------
mp-import:      afi ipv4.unicast from AS112 accept AS112
mp-import:      afi ipv6.unicast from AS112 accept AS112
mp-export:      afi ipv4.unicast to AS112 announce ANY
mp-export:      afi ipv6.unicast to AS112 announce ANY
remarks:        +---------------------------------------------------+
remarks:        | Abuse issues please contact abuse@leitecastro.com |
remarks:        +---------------------------------------------------+
sponsoring-org: ORG-FUL13-RIPE
admin-c:        ACRO49236-RIPE
tech-c:         ACRO49236-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         CASTRO-MNT
created:        2022-12-19T10:39:52Z
last-modified:  2025-10-03T03:13:16Z
source:         RIPE # Filtered

organisation:   ORG-TOVL1-RIPE
org-name:       Tomas Oliveira Valente Leite de Castro
country:        PT
reg-nr:         Not Applicable
org-type:       OTHER
remarks:        Physical Address
address:        Avenida Elias Garcia 31, 4E
address:        1000-148 Lisbon
address:        Portugal
abuse-c:        ACRO49236-RIPE
mnt-ref:        FEMBOY-MNT
mnt-ref:        CLOUDIE-MNT
mnt-ref:        ROUTE48-MNT
mnt-by:         CASTRO-MNT
created:        2022-07-26T13:57:43Z
last-modified:  2026-05-13T06:00:27Z
source:         RIPE # Filtered

role:           Abuse contact role object
address:        Tomas Leite de Castro
address:        Avenida Elias Garcia 31, 4E
address:        1000-148 Lisbon
address:        Portugal
abuse-mailbox:  tomas.leite.castro@tecnico.ulisboa.pt
nic-hdl:        ACRO49236-RIPE
mnt-by:         CASTRO-MNT
created:        2022-07-26T13:57:09Z
last-modified:  2025-11-18T16:33:32Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.123 (DEXTER)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.ripe.net",
  "as_blocks" : [ {
    "as_block" : "AS200352 - AS200535",
    "description" : [ "RIPE NCC ASN block" ],
    "remarks" : [ "These AS Numbers are assigned to network operators in the RIPE NCC service region." ],
    "mnt_by" : [ "RIPE-NCC-HM-MNT" ],
    "date_created" : "2026-04-08",
    "date_updated" : "2026-04-08",
    "source" : "RIPE"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS200454",
    "as_name" : "TOM-AS",
    "description" : [ "Tomas Oliveira Valente Leite de Castro" ],
    "status" : "ASSIGNED",
    "mp_import" : [ "afi ipv4.unicast from AS6939 action pref=70; accept ANY", "afi ipv6.unicast from AS6939 action pref=70; accept ANY", "afi ipv4.unicast from AS174 action pref=50; accept ANY", "afi ipv6.unicast from AS174 action pref=50; accept ANY", "afi ipv4.unicast from AS12186 action pref=70; accept ANY", "afi ipv6.unicast from AS12186 action pref=70; accept ANY", "afi ipv4.unicast from AS47787 action pref=70; accept ANY", "afi ipv6.unicast from AS47787 action pref=70; accept ANY", "afi ipv4.unicast from AS40542 action pref=200; accept AS-KCIX-MEMBERS", "afi ipv6.unicast from AS40542 action pref=200; accept AS-KCIX-MEMBERS", "afi ipv4.unicast from AS33733 action pref=200; accept AS33733:AS-RSPEERS", "afi ipv6.unicast from AS33733 action pref=200; accept AS33733:AS-RSPEERS", "afi ipv4.unicast from AS13335 action pref=400; accept AS-CLOUDFLARE", "afi ipv6.unicast from AS13335 action pref=400; accept AS-CLOUDFLARE", "afi ipv4.unicast from AS400818 action pref=400; accept AS-AUSRA", "afi ipv6.unicast from AS400818 action pref=400; accept AS-AUSRA", "afi ipv4.unicast from AS214913 action pref=400; accept AS214913", "afi ipv6.unicast from AS214913 action pref=400; accept AS214913", "afi ipv4.unicast from AS25152 action pref=400; accept RS-KROOT", "afi ipv6.unicast from AS25152 action pref=400; accept RS-KROOT-V6", "afi ipv4.unicast from AS215153 accept AS215153:AS-CONE", "afi ipv6.unicast from AS215153 accept AS215153:AS-CONE", "afi ipv4.unicast from AS112 accept AS112", "afi ipv6.unicast from AS112 accept AS112" ],
    "mp_export" : [ "afi ipv4.unicast to AS6939 announce AS-LEGACY", "afi ipv6.unicast to AS6939 announce AS-LEGACY", "afi ipv4.unicast to AS174 announce AS-LEGACY", "afi ipv6.unicast to AS174 announce AS-LEGACY", "afi ipv4.unicast to AS12186 announce AS-LEGACY", "afi ipv6.unicast to AS12186 announce AS-LEGACY", "afi ipv4.unicast to AS47787 action community.append(0:1930, 12833:1930); announce AS-LEGACY", "afi ipv6.unicast to AS47787 action community.append(0:1930, 12833:1930); announce AS-LEGACY", "afi ipv4.unicast to AS40542 announce AS-LEGACY", "afi ipv6.unicast to AS40542 announce AS-LEGACY", "afi ipv4.unicast to AS33733 announce AS-LEGACY", "afi ipv6.unicast to AS33733 announce AS-LEGACY", "afi ipv4.unicast to AS13335 announce AS-LEGACY", "afi ipv6.unicast to AS13335 announce AS-LEGACY", "afi ipv4.unicast to AS400818 announce AS-LEGACY", "afi ipv6.unicast to AS400818 announce AS-LEGACY", "afi ipv4.unicast to AS214913 announce ANY", "afi ipv6.unicast to AS214913 announce ANY", "afi ipv4.unicast to AS25152 announce ANY", "afi ipv6.unicast to AS25152 announce ANY", "afi ipv4.unicast to AS215153 announce ANY", "afi ipv6.unicast to AS215153 announce ANY", "afi ipv4.unicast to AS112 announce ANY", "afi ipv6.unicast to AS112 announce ANY" ],
    "organization" : "ORG-TOVL1-RIPE",
    "sponsoring_organization" : "ORG-FUL13-RIPE",
    "admin_contacts" : [ "ACRO49236-RIPE" ],
    "tech_contacts" : [ "ACRO49236-RIPE" ],
    "remarks" : [ "----------------------------------------------------------------", "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 -------------------------", "------------------------ S?lvio Silva ------------------------", "--------------------------- AS112 ----------------------------", "+---------------------------------------------------+", "| Abuse issues please contact abuse@leitecastro.com |", "+---------------------------------------------------+" ],
    "mnt_by" : [ "RIPE-NCC-END-MNT", "CASTRO-MNT" ],
    "date_created" : "2022-12-19",
    "date_updated" : "2025-10-03",
    "source" : "RIPE"
  } ],
  "organization" : {
    "handle" : "ORG-TOVL1-RIPE",
    "name" : "Tomas Oliveira Valente Leite de Castro",
    "type" : "OTHER",
    "address" : [ "Avenida Elias Garcia 31, 4E", "1000-148 Lisbon", "Portugal" ],
    "street" : "Avenida Elias Garcia",
    "city" : "Lisbon",
    "zip_code" : "1000-148",
    "country" : [ "PT" ],
    "abuse_contacts" : [ "ACRO49236-RIPE" ],
    "remarks" : [ "Physical Address" ],
    "mnt_ref" : [ "FEMBOY-MNT", "CLOUDIE-MNT", "ROUTE48-MNT" ],
    "mnt_by" : [ "CASTRO-MNT" ],
    "date_created" : "2022-07-26",
    "date_updated" : "2026-05-13",
    "source" : "RIPE",
    "addressCountry" : "PORTUGAL"
  },
  "administrative_contacts" : [ {
    "handle" : "ACRO49236-RIPE",
    "name" : "Abuse contact role object",
    "address" : [ "Tomas Leite de Castro", "Avenida Elias Garcia 31, 4E", "1000-148 Lisbon", "Portugal" ],
    "street" : "Avenida Elias Garcia",
    "city" : "Lisbon",
    "zip_code" : "1000-148",
    "country" : "PORTUGAL",
    "abuse_mailbox" : [ "tomas.leite.castro@tecnico.ulisboa.pt" ],
    "mnt_by" : [ "CASTRO-MNT" ],
    "date_created" : "2022-07-26",
    "date_updated" : "2025-11-18",
    "source" : "RIPE",
    "addressCountry" : "PORTUGAL"
  } ],
  "technical_contacts" : [ {
    "handle" : "ACRO49236-RIPE",
    "name" : "Abuse contact role object",
    "address" : [ "Tomas Leite de Castro", "Avenida Elias Garcia 31, 4E", "1000-148 Lisbon", "Portugal" ],
    "street" : "Avenida Elias Garcia",
    "city" : "Lisbon",
    "zip_code" : "1000-148",
    "country" : "PORTUGAL",
    "abuse_mailbox" : [ "tomas.leite.castro@tecnico.ulisboa.pt" ],
    "mnt_by" : [ "CASTRO-MNT" ],
    "date_created" : "2022-07-26",
    "date_updated" : "2025-11-18",
    "source" : "RIPE",
    "addressCountry" : "PORTUGAL"
  } ]
}

Peers

AS Number	Description	Country
AS21738	Rozint	US
AS2906	Netflix Streaming Services Inc.	US
AS200242	Ember Ana Reimer	DE
AS393577	Tritan Development	US
AS40536	PixelDeck Hosting, LLC	US
AS215248	Bastiaan Mathijs Brink	NL
AS32943	Web of Nevada	US
AS399647	Rumble USA Inc.	US
AS3856	Packet Clearing House, Inc.	US
AS53597	Hoyos Consulting LLC	US
AS400818	Ausra LLC	US
AS60326	0xDEADBEEF LTD	SC
AS40542	Kansas City Internet eXchange	US
AS16909	imput	US
AS15165	Mutual Telephone Company	US
AS53610	Metro Communications Company, Inc.	US
AS12186	GVVME	US
AS26156	Verus, LLC	US
AS214913	Joel Reis da Conceicao trading as WebTejo	PT
AS399503	Dice Carrier Services LLC	US
AS401332	Triplebit	US
AS27523	Kawaii Networks LLC	US
AS1003	andrewnet	US
AS52210	Accuris Technologies Ltd.	CA
AS216107	Noah van der Aa trading as Frumentum Media	NL
AS11588	Lambda	US
AS206924	Ben Cartwright Cox	GB
AS11320	LightEdge Solutions	US
AS214329	BGP Network LLC	SA
AS25735	Sloth Networks	US
AS393796	Golden Belt Telephone	US
AS22295	Advin Services LLC	US
AS401538	Nova86	US
AS205018	Irsyad Khoirul Anwar	ID
AS64289	Macarne.com	US
AS213605	Liu HaoRan	CN
AS14061	DigitalOcean, LLC	US
AS52025	ParadoxNetworks Limited	GB
AS53356	Free Range Cloud Hosting Inc.	CA
AS17303	Network Advisors, LLC	US
AS2572	University of Missouri dba the Missouri Research and Education Network MOREnet	US
AS10310	Yahoo Holdings Inc.	US
AS203729	June Slater	US
AS53343	Ntrix Infrastructure	US
AS42	WoodyNet, Inc.	US
AS150289	Sunyz Experimental Global Network	HK
AS835	GoCodeIT Inc	CA
AS15164	Unite Private Networks LLC.	US
AS112	DNS OARC	US
AS44324	MoeDove LLC	US
AS12198	JSMSR Network	US
AS2495	Kansas Research and Education Network	US
AS5056	Aureon Network Services	US
AS44421	Yifu Yu	CN
AS30690	Kazehana Networks LLC	US
AS6939	Hurricane Electric LLC	US
AS395662	OzarksGo, LLC	US
AS40581	Arkansas Research and Education Optical Network	US
AS10242	US Internet Corp	US
AS11232	Midcontinent Communications	US

Upstreams

AS Number	Description	Country
AS6939	Hurricane Electric LLC	US
AS12186	GVVME	US
AS50666	LigaT Telecom Sociedade Unipessoal LDA	PT

Downstreams

AS Number	Description	Country
AS19577	CASTRO TELECOM LLC	US

Contacts

Email Contacts

tomas.leite.castro@tecnico.ulisboa.pt

Abuse Contacts