AS21520 — AS21520
AS Name: AS21520
Description: LACNIC generated autnum for Instituto Tecnologico Autonomo de Mexico(ITAM)
Registry: LACNIC
aut-num: AS21520
descr: LACNIC generated autnum for Instituto Tecnologico Autonomo de Mexico(ITAM)
as-name: AS21520
tech-c: UFR
remarks: LACNIC generated autnum for MX-ITAM-LACNIC
mnt-by: MNT-MX-ITAM-LACNIC
changed: uciel@itam.mx 20201111
source: LACNIC
Direct Membership
Macros that directly list AS21520 as a member:
AS18734:AS-CONE(22 members)
AS-TOTALPLAY(98 members)
AS-BESTEL-NET(175 members)
AS-8151(198 members)
AS-32098(437 members)
AS-28513(526 members)
AS-GBLX(691 members)
AS-NWN-TRANSIT(2017 members)
AS3491:AS-CUSTOMERS-NA(2785 members)
Expanded Membership
All macros containing AS21520 (directly or via nested macros): 130
Show 100 macros
AS18734:AS-CONE(22 ASNs)
AS-TOTALPLAY(98 ASNs)
AS-BESTEL-NET(174 ASNs)
AS-8151(198 ASNs)
AS-32098(469 ASNs)
AS-28513(526 ASNs)
AS-GBLX(963 ASNs)
AS-NWN-TRANSIT(2,017 ASNs)
AS6830:AS-AORTAUS(2,041 ASNs)
AS-AORTA(11,961 ASNs)
AS6830:AS-AORTA(11,961 ASNs)
AS41073:AS-INEX-PEERS(14,843 ASNs)
AS-XO(23,361 ASNs)
AS3491:AS-CUSTOMERS-NA(25,092 ASNs)
AS-MFNX(26,187 ASNs)
AS47214:AS-LILLIX(26,738 ASNs)
AS43100:AS-MEMBERS(26,826 ASNs)
AS-SFINX-RS-MEMBERS-IPV6(26,914 ASNs)
AS-SFINX-RS-MEMBERS(26,976 ASNs)
AS-DECIX-DFW-V6(40,077 ASNs)
AS62499:AS-DECIX-DFW-V6(40,077 ASNs)
AS201376:AS-PEERS(42,984 ASNs)
AS-DECIX-DFW(43,178 ASNs)
AS62499:AS-DECIX-DFW(43,178 ASNs)
AS2914:AS-US-V6(52,836 ASNs)
AS2914:AS-US(53,991 ASNs)
AS-NIXSK-RSCLIENTS(55,989 ASNs)
AS47627:AS-NIXSK-RSCLIENTS(56,033 ASNs)
AS-TOPIX-RS(57,252 ASNs)
AS1273:AS-CWW(59,499 ASNs)
AS-PLIX6(60,222 ASNs)
AS-CAIS(61,483 ASNs)
AS206221:AS-ERA-IX-AMSTERDAM(65,700 ASNs)
AS-ERA-IX(65,707 ASNs)
AS-CW6(66,853 ASNs)
AS1273:AS-CWW-V6(66,853 ASNs)
AS-SET-INEX-CONNECTED(67,097 ASNs)
AS-CW(67,352 ASNs)
AS-PL-IX(74,048 ASNs)
AS-PLIX(74,048 ASNs)
AS-SWISSIX-RS(75,248 ASNs)
AS42476:AS-SWISSIX(75,248 ASNs)
AS-MIRONET-SWISSIX-PEERS(75,488 ASNs)
AS-SET-LONAP-MLP(76,698 ASNs)
AS-SET-LONAP-CONNECTED(77,146 ASNs)
AS215153:AS-EXCHANGES(77,148 ASNs)
AS42064:AS-MEMBERS(77,328 ASNs)
AS39801:AS-CDNUSERS(77,556 ASNs)
AS30781:AS-JAGUAR-PEERING-LINX(77,905 ASNs)
AS30781:AS-JAGUAR-PEERING-AMS-IX(78,176 ASNs)
AS-FRANCEIX-MRS(79,600 ASNs)
AS-ALPIX(79,778 ASNs)
AS-DECIX-MUC(79,778 ASNs)
AS47228:AS-DECIX-MUC(79,778 ASNs)
AS-1-IX(79,814 ASNs)
AS31561:AS-MEMBERS-AMS(79,814 ASNs)
AS31561:AS-MEMBERS(79,895 ASNs)
AS-STOLON-PEERING(79,897 ASNs)
AS42476:AS-SWISSIX-V6(80,246 ASNs)
AS-HOPUS(80,866 ASNs)
AS-NIXCZ-RSCLIENTS(81,401 ASNs)
AS208060:AS-PEERS(81,401 ASNs)
AS47110:AS-PEERS(81,401 ASNs)
AS2914:AS-GLOBAL-V6(81,831 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-LINX(81,936 ASNs)
AS-SET-LONAP-MLP-V6(82,026 ASNs)
AS-DATAIX(82,325 ASNs)
AS-DATAIX-UA(82,325 ASNs)
AS-VERIO(82,495 ASNs)
AS-WNA(82,495 ASNs)
AS2914:AS-GLOBAL(82,495 ASNs)
AS-ECIX-FRA(82,682 ASNs)
AS-1-IX-WAW(82,799 ASNs)
AS47200:AS-NIXCZ-RSCLIENTS(83,073 ASNs)
AS24971:AS-MAI-NIX-PEER(83,081 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-AMS-IX(83,547 ASNs)
AS3326:AS-PEERS-UA(83,796 ASNs)
AS3326:AS-UA(83,796 ASNs)
AS-GTTCUST6(83,984 ASNs)
AS-TINETCUST6(83,984 ASNs)
AS-GLOBEINTERNET(84,477 ASNs)
AS-GLOBEINTERNET-CLIENTS(84,477 ASNs)
AS-GTTCUST(84,520 ASNs)
AS-TINETCUST(84,520 ASNs)
AS51706:AS-MEMBERS(84,578 ASNs)
AS-1-IX-WAW-V6(84,590 ASNs)
AS-GTT(84,608 ASNs)
AS-TINET(84,608 ASNs)
AS-TISCALI(84,608 ASNs)
AS-SEATTLEIX-RS-CLIENTS(84,639 ASNs)
AS39801:AS-IIXP-PEERS(84,811 ASNs)
AS39801:AS-MULTIPASS-PEERS(84,811 ASNs)
AS-ALPIX-V6(85,041 ASNs)
AS-DECIX-MUC-V6(85,041 ASNs)
AS47228:AS-DECIX-MUC-V6(85,041 ASNs)
AS-KLNK-IX(85,102 ASNs)
AS-NL-IX-RS(85,102 ASNs)
AS-CESNET-NIX-PEERS(85,295 ASNs)
AS-FRANCEIX-PAR(85,330 ASNs)
AS-TELIANETEU-V6(85,444 ASNs)
... and 30 more
Upstream AS Paths
58 unique paths, avg length 2.6
AS Looking Glass
Upstream paths (matching graph above)
AS21520 IPv4 Address Subnets (23)
| 148.205.104.0/21 | 🇲🇽 MX | CS-27719 TP | AS17072 |
| 148.205.56.0/21 | 🇲🇽 MX | CS-27719 TP | AS17072 |
| 148.205.112.0/22 | 🇲🇽 MX | Customer Bestel | AS21520 |
| 148.205.132.0/22 | 🇲🇽 MX | Instituto Tecnologico Autonomo de Mexico(ITAM) | AS21520 |
| 148.205.136.0/22 | 🇲🇽 MX | Customer Bestel | AS21520 |
| 148.205.148.0/22 | 🇲🇽 MX | Customer Bestel | AS21520 |
| 148.205.164.0/22 | 🇲🇽 MX | Customer Bestel | AS21520 |
| 148.205.176.0/22 | 🇲🇽 MX | Customer Bestel | AS21520 |
| 148.205.196.0/22 | 🇲🇽 MX | Customer Bestel | AS21520 |
| 148.205.228.0/22 | 🇲🇽 MX | Customer Bestel | AS21520 |