AS21574 AS21574 - Century Telecom Ltda
🇧🇷Org handle: 120573
LACNICallocated
Announced Prefixes (BGP)
7total
6 IPv41 IPv6
IPv4 Addresses
Allocated (RIR)13,312
Announced (BGP)13,824
IPv6 Addresses
Allocated (RIR)7.9×10²⁸
Announced (BGP)7.9×10²⁸
Routing hygiene
Score 34/100 · Medium riskRPKI ROA coverage
0%
no RPKI invalid prefixes
IRR route objects
100%
no origin mismatches
Hijack signals
0
0 announced against others' ROAs, 0 own announced by others
Upstreams
3
diversity 57/100
- 100% of announced prefixes (7 of 7) have no valid ROA
Based on 7 announced prefixes, updated daily (2026-10-24). How the score works · RPKI explained
Announced Prefixes
(BGP)7|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| No ROA | Other IRR | 2026-10-26 | |
| No ROA | Other IRR | 2026-10-26 | |
| No ROA | Other IRR | 2026-10-26 | |
| No ROA | - | 2026-10-26 | |
| No ROA | Other IRR | 2026-10-26 | |
| No ROA | Other IRR | 2026-10-26 | |
| No ROA | Other IRR | 2026-10-26 |
Allocated Prefixes
(RIR)5Prefix | Country | RIR | Status |
|---|---|---|---|
| 168.227.200.0/22 | 🇧🇷 BR | LACNIC | allocated |
| 186.249.224.0/20 | 🇧🇷 BR | LACNIC | allocated |
| 187.1.176.0/20 | 🇧🇷 BR | LACNIC | allocated |
| 200.169.0.0/20 | 🇧🇷 BR | LACNIC | allocated |
| 2804:23ec::/32 | 🇧🇷 BR | LACNIC | allocated |
All 7 announced prefixes of AS21574 →
BGP Neighbours
(seen in AS paths)Upstreams (3)
Networks AS21574 hands its own prefixes to: transit providers, or peers at an exchange.
Downstreams (100 of 101)
Networks whose own prefixes AS21574 passes on: usually its customers.
- AS262895Norte Line Telecomunicacoes Ltda36
- AS53139RDF Informatica Ltda31
- AS263356CNT Fiber25
- AS20044S/A ESTADO DE MINAS15
- AS262566Link Sete Servicos De Internet E Redes Ltda13
- AS263277Rnet Informatica Ltda13
- AS270564MASTER DA WEB DATACENTER LTDA12
- AS61712YUPNET TELECOMUNICACOES LTDA11
- AS52712CONECTIVA INFORMATICA E TELECOMUNICACOES LTDA ME10
- AS262387Intermicro Ltda10
- AS264421BrumaNet Telecom10
- AS273350Gns Telecom10
- AS61707SYSVOIP TELECOMUNICACOES LTDA ME9
- AS262624INETSAFE COMERCIO DE EQUIPAMENTOS ELETRONICOS LTDA9
- AS267008NET WAY TECNOLOGIA LTDA9
- AS268229VIA ONDAS TELECOMUNICACOES LTDA9
- AS262674Conquest Telecomunicacoes Ltda8
- AS267357Livenet Telecom8
- AS269199INFOTEC TELECON LTDA8
- AS269248WAGNER JOSE RIBEIRO8
- AS270837Imartech Fibra8
- AS270897SAFE SMART TREINAMENTO CONSULTORIA E TELECOM LTDA8
- AS271338TITAM NET TELECOM8
- AS271610INFINITYCARD BRASIL LTDA8
- AS264374NCA Tecnologia Ltda7
- AS267070Fibranet Juiz De Fora Servicos De Telecomunicacoes7
- AS268997FALCON INTERNET LTDA7
- AS272162Fibra Minas7
- AS52928NORTETEL TELECOMUNICACOES LTDA6
- AS264455STAR MAN NET PROVEDORA DE INTERNET LTDA EPP6
- AS265437INTERNET CORPORATE & SOLAR LTDA6
- AS275684Pontual Net Mg Telecomunicacoes LTDA6
- AS28296Acessa Telecomunicacoes Ltda5
- AS61945PIX BRASIL NETWORKS LTDA5
- AS265051Speed Max Provedor De Internet Wireless LTDA ME5
- AS265424Horizontes Telecom LTDA5
- AS265460LUP TELECOMUNICACOES LTDA5
- AS266260ITOP TELECOM LTDA ME5
- AS271062Nextlink Telecom5
- AS52916Datanet Provedor De Internet Ltda4
- AS264385Itop Internet E Servicos LTDA4
- AS265497AltaVista Telecomunicacoes LTDA4
- AS267978JOTA NET TELECOMUNICACOES LTDA ME4
- AS268882Mais Rede Telecom4
- AS269084Global Tech Telecom Ltda ME4
- AS274795Verteron Datacenter LTDA4
- AS52947PARAOPEBANET PROVEDOR LTDA3
- AS263440WAVE UP TELECOM BRASIL LTDA ME3
- AS263475Guara Digital LTDA3
- AS264540RG Tecnologia E Telecomunicacoes Ltda3
- AS265014GNA TELECOM LTDA ME3
- AS267497GL TELECOM LTDA ME3
- AS267536NetFlux Internet3
- AS268355RESENDE & GONCALVES SERVICOS E INTERNET LTDA3
- AS2747981 CLICK TELECOM LTDA3
- AS14789Cloudflare2
- AS21433AccentureFSSC Accenture UK Limited2
- AS28175On Line Tecnologia E Integracao LTDA EPP2
- AS28572Apoiocom Digital Ltda EPP2
- AS52532Speednet Telecomunicacoes Ltda ME2
- AS52907PRIME FIBRA LTDA2
- AS53077ALOLTECH TELECOM LTDA2
- AS262268MAX NET TELECOMUNICACOES2
- AS262306Condax Tecnologia Ltda2
- AS262741CONECTSUL SOLUCOES EM INTERNET2
- AS263302TORPEDOLINK TELECOM2
- AS266149BDC TELECOM2
- AS268327K@NET PROVEDOR DE INTERNET2
- AS268725Planex Telecom2
- AS268843CDNTV TECNOLOGIA LTDA2
- AS268888ACRF SERVICOS DE INFORMATICA LTDA ME2
- AS270663LM NET LTDA2
- AS270951PAULO MARQUES DE ARAUJO ME2
- AS271049Rede EXS Telecomunicacoes LTDA2
- AS271072ULTRAFIBRA NET REPRESENTACOES TELECOM EIRELI2
- AS272201ACSNET TELECOM2
- AS272241LIBERT TECNOLOGIA EM TELECOMUNICACOES EIRELI2
- AS272454RNJ TELECOM LTDA2
- AS272487WAVE FIBRA TELECOMUNICACOES LTDA2
- AS272495Star Telecomunicacoes LTDA2
- AS272753FASTNET FIBRA2
- AS273783LS PROVEDOR DE INTERNET LTDA2
- AS274496GIGANET TELECOMUNICACOES LTDA2
- AS28133Provedor Eloinet Ltda1
- AS28188Pronto Net Ltda1
- AS52875M.I.MONTREAL INFORMATICA LTDA1
- AS53062GGNET TELECOMUNICACOES LTDA1
- AS53196NETSTAR SOLUCOES LTDA1
- AS262663METROFLEX TELECOMUNICACOES LTDA1
- AS262767Avelino E Rodrigues LTDA1
- AS262948LD Telecomunicacoes LTDA1
- AS266163Itainet Fiber Provedor1
- AS268433MGCLOUD SOLUCOES EM TIC LTDA ME1
- AS270385CONECTA PROVEDOR DE INTERNET LTDA1
- AS270865PW FIBRA OPTICA1
- AS271488REALDATA TELECOMUNICACOES E TECNOLOGIA LTDA1
- AS271734PEOPLE SERVICOS DE COMUNICACAO LTDA1
- AS272479LINK FIBRA TELECOM LTDA1
- AS273330WDL SERVICOS DE TELECOMUNICACAO LTDA1
- AS273714POINT NET TELECOMUNICACAO LTDA1
Other adjacent networks (10)
Adjacent to AS21574 in the transit part of AS paths: peers, providers or customers.
External Links
Learn more
- What is an ASN?Autonomous systems, ASN ranges and how they are assigned
- RPKI and route origin validationWhat the RPKI badges on the prefix list mean
- How to run an ASPA checkVerify the upstream providers listed above
- IPv4 transfers in the LACNIC regionMonthly volume and the latest registry transfers
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/21574Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/21574" | jq