AS21574 — CENTURY TELECOM LTDA CENTURY TELECOM CENTURY
AS Name: CENTURY-BR
Description: Century Telecom Ltda Rua Tenente Garro, 118 - 14 Andar Santa Efigenia CEP: 30.240-040 Belo Horizonte - MG - Brasil +55 (31) 3514-7857 AS21574 Century Telecom Ltda
Registry: ALTDB
Imports from (15)
⚠️ CIRCL BGP Security Rank: 0.1092% (position 4871)
aut-num: AS21574
as-name: CENTURY-BR
descr: Century Telecom Ltda Rua Tenente Garro, 118 - 14 Andar Santa Efigenia CEP: 30.240-040 Belo Horizonte - MG - Brasil +55 (31) 3514-7857
export: to AS3549 announce AS21574
export: to AS16735 announce AS21574
export: to AS28360 announce AS21574
import: from AS52809 accept <^AS52809+$>
import: from AS262306 accept <^AS262306+$>
import: from AS262525 accept <^AS262525+$>
import: from AS262566 accept <^AS262566+$>
import: from AS263632 accept <^AS263632+$>
import: from AS264421 accept <^AS264421+$>
import: from AS52596 accept <^AS52596+$>
import: from AS264228 accept <^AS264228+$>
import: from AS61707 accept <^AS61707+$>
import: from AS264552 accept <^AS264552+$>
import: from AS262805 accept <^AS262805+$>
import: from AS52883 accept <^AS52883+$>
import: from AS52947 accept <^AS52947+$>
import: from AS264540 accept <^AS264540+$>
import: from AS262624 accept <^AS262624+$>
admin-c: Alonso de Oliveira Gomes
tech-c: Hiardelovy P Martins
notify: bgp@century.net.br
notify: noc@century.net.br
notify: hiardelovy@century.net.br
mnt-by: MAINT-AS21574
changed: hiarddelovy@century.net.br 20151207
source: ALTDB
aut-num: AS21574
as-name: Century-Telecom
descr: AS21574 Century Telecom Ltda
admin-c: DCT38
tech-c: PRD72
mnt-by: MAINT-AS21574
changed: engenharia@century.net.br 20190912 #18:58:33Z
source: RADB
last-modified: 2023-11-13T16:08:39Z
AS news
Direct Membership
Macros that directly list AS21574 as a member:
AS-21574-BACKBONE(1 members)
AS271072:AS-UPLINKS(3 members)
AS273714:AS-UPLINKS(3 members)
AS52631:AS-UPSTREAMS(4 members)
AS-CTBC-CUSTOMERS1(50 members)
AS-CTBC-CUSTOMERS93(50 members)
AS-MEGALINK(108 members)
AS-IXBR-ATM6-RJ(251 members)
AS63034:AS-DECIX-NYC-CONNECTED(277 members)
AS-IXBR-ATM4-RJ(288 members)
AS-IXBR-RJ(298 members)
AS-CEMIGTELECOM-CLIENTS-OF-CLIENTS(383 members)
AS-K2TELECOM-COSTUMERS(502 members)
AS-PTTMETRO-SP(509 members)
AS-PTTMETRO-ATM4-SP(512 members)
AS52925:AS-CONE(700 members)
AS-AMERICANTOWER-CLIENTS-OF-CLIENTS(841 members)
AS6695:AS-DECIX-FRA-RS-V6(1064 members)
AS6695:AS-DECIX-FRA-RS(1064 members)
AS6695:AS-DECIX-FRA-CONNECTED(1065 members)
AS-GNT-CUSTOMERS(1312 members)
AS-ITXBR(1408 members)
AS-UFLA-TRANSCUST(1656 members)
AS-IXBR-ATM4-SP(1706 members)
AS-IXBR-SP(1726 members)
AS-ITXBR1(1794 members)
AS-SB-AUTOMATION-CUSTOMER(2479 members)
AS-HWNG-DOWNSTREAMS(2599 members)
AS3491:AS-CUSTOMERS-NA(2785 members)
AS-E1-AUTOMATION-CUSTOMER(4656 members)
AS-267613(5154 members)
AS-EMBRATELNET(6101 members)
AS26615:AS-CUSTOMERS(7539 members)
AS-LEVEL3-ORIGINS-EU(7728 members)
AS-CTBC-TOOLS(8129 members)
Expanded Membership
All macros containing AS21574 (directly or via nested macros): 459
Show 100 macros
AS-21574-BACKBONE(1 ASNs)
AS271072:AS-UPLINKS(3 ASNs)
AS273714:AS-UPLINKS(3 ASNs)
AS52631:AS-UPSTREAMS(4 ASNs)
AS-CTBC-CUSTOMERS1(50 ASNs)
AS-CTBC-CUSTOMERS93(50 ASNs)
AS-MEGALINK(108 ASNs)
AS-IXBR-ATM6-RJ(251 ASNs)
AS-DECIX-NYC-CONNECTED(277 ASNs)
AS63034:AS-DECIX-NYC-CONNECTED(277 ASNs)
AS-IXBR-ATM4-RJ(288 ASNs)
AS-IXBR-RJ(298 ASNs)
AS-CEMIGTELECOM-CLIENTS-OF-CLIENTS(383 ASNs)
AS-CEMIGTELECOM-CLIENTES(478 ASNs)
AS-PTTMETRO-SP(509 ASNs)
AS-PTTMETRO-ATM4-SP(512 ASNs)
AS-3COM27172(557 ASNs)
AS-3COM46890(557 ASNs)
AS-3COMNET(557 ASNs)
AS-21574-CENTURY(565 ASNs)
AS52925:AS-CONE(734 ASNs)
AS-AMERICANTOWER-CLIENTS-OF-CLIENTS(841 ASNs)
AS-AMERICANTOWER(1,013 ASNs)
AS-DECIX-RS(1,064 ASNs)
AS-DECIX-RS-V6(1,064 ASNs)
AS6695:AS-DECIX-FRA-RS(1,064 ASNs)
AS6695:AS-DECIX-FRA-RS-V6(1,064 ASNs)
AS-DECIX-CONNECTED(1,065 ASNs)
AS6695:AS-DECIX-FRA-CONNECTED(1,065 ASNs)
AS-ALTAREDE(1,116 ASNs)
AS-K2TELECOM-COSTUMERS(1,178 ASNs)
AS-K2TELECOM(1,179 ASNs)
AS-GNT-CUSTOMERS(1,312 ASNs)
AS-GNT(1,313 ASNs)
AS-UFLA-TRANSCUST(1,654 ASNs)
AS-IXBR-ATM4-SP(1,706 ASNs)
AS263516:AS-IXBR(1,708 ASNs)
AS264517:AS-IXBR(1,708 ASNs)
AS264556:AS-IX(1,708 ASNs)
AS28263:AS-IX(1,713 ASNs)
AS-IXBR-SP(1,726 ASNs)
AS61716:AS-IX(1,726 ASNs)
AS52999:AS-IX(1,912 ASNs)
AS262713:AS-LTEL-IXS(1,937 ASNs)
AS271387:AS-EMFIBRA-IXBR(1,937 ASNs)
AS-ULTRA(1,952 ASNs)
AS-SB-AUTOMATION-CUSTOMER(2,479 ASNs)
AS-HWNG-DOWNSTREAMS(2,598 ASNs)
AS-HWNG-CUSTOMERS(2,646 ASNs)
AS-HIGHWINDS(2,647 ASNs)
AS-HWNG-ALT(2,647 ASNs)
AS-HWNG(2,717 ASNs)
AS-ITXBR(2,941 ASNs)
AS-NEXUSGUARD-CLIENTS-AS-SET(3,901 ASNs)
AS45474:AS-NEXUSGUARD(4,166 ASNs)
AS-53013-CUSTOMERS-ASSET(4,310 ASNs)
AS-ITXBR1(4,615 ASNs)
AS-E1-AUTOMATION-CUSTOMER(4,656 ASNs)
AS-267613(5,153 ASNs)
AS-MEGATELECOM-CUSTOMERS(5,157 ASNs)
AS-MEGA(5,160 ASNs)
AS-MEGATELECOM(5,166 ASNs)
AS-INTERTAX(5,306 ASNs)
AS-OPENX(5,734 ASNs)
AS-NOVVACORE(5,795 ASNs)
AS-NOVVACORE-CUSTOMERS(5,795 ASNs)
AS-BANDCON(5,888 ASNs)
AS-G8(6,078 ASNs)
AS-EMBRATELNET(6,101 ASNs)
AS-MILECOM(6,301 ASNs)
AS20730:AS-DVO-IX(6,301 ASNs)
AS-FLYS(6,441 ASNs)
AS-TIVIT(6,449 ASNs)
AS-ZSTTK-SET(6,735 ASNs)
AS-CHIEF-TRANSIT(6,746 ASNs)
AS-MILECOM-RS(7,417 ASNs)
AS26615:AS-CUSTOMERS(7,539 ASNs)
AS-RBIX(7,603 ASNs)
AS-LEVEL3-ORIGINS-EU(7,728 ASNs)
AS-LEVELTHREEEU(7,728 ASNs)
AS-CTBC-TOOLS(8,129 ASNs)
AS272713:AS-CDNSTAR-CUSTOMERS(8,304 ASNs)
AS272713:AS-CDNSTAR(8,471 ASNs)
AS-HUGENET(9,689 ASNs)
AS-HUGENET-CUSTOMERS(9,689 ASNs)
AS-SEABORN-G2(10,828 ASNs)
AS-EDGEUNO-TR(10,995 ASNs)
AS-CTBC(11,413 ASNs)
AS-SEABONECUSTLA(11,515 ASNs)
AS-FIORD(12,063 ASNs)
AS-FIORD-V6(12,063 ASNs)
AS-SET-SEACOM(12,587 ASNs)
AS-IHOME(12,653 ASNs)
AS-MTU-V6(13,582 ASNs)
AS2914:AS-SA-V6(14,359 ASNs)
AS2914:AS-SA(14,363 ASNs)
AS-ERTH(14,365 ASNs)
AS-SMRROUTESERVER(14,365 ASNs)
AS-OMTT-SET(14,375 ASNs)
AS-ULNIX(14,449 ASNs)
... and 359 more
Upstream AS Paths
25 unique paths, avg length 1.5
AS Looking Glass
Upstream paths (matching graph above)
All 25 Upstream Paths
Complete list of all observed paths
AS21574 IPv4 Address Subnets (5)
| 186.249.224.0/20 | 🇧🇷 BR | Century Telecom | CENTURY-BR |
| 187.1.176.0/20 | 🇧🇷 BR | Century Telecom | CENTURY-BR |
| 200.169.0.0/20 | 🇧🇷 BR | Century Telecom | CENTURY-BR |
| 168.227.200.0/22 | 🇧🇷 BR | Century Telecom | CENTURY-BR |
| 187.1.178.0/24 | 🇧🇷 BR | CLARO S.A. Customer | CENTURY-BR |
AS21574 IPv6 Address Subnets (1)
| 2804:23ec::/32 | 🇧🇷 BR | Century Telecom | CENTURY-BR |