// AVONET //

AS Name: MGI

Description: CZ.MGI autonomous system, Czech Republic AVONET, s.r.o. Internet Service Provider ZLin CZ

Organization: ORG-Ms3-RIPE

Registry: RIPE

Imports from (73)

AS174 AS47232 AS39392 AS47200 AS25192 AS29134 AS29321 AS29208 AS15685 AS25424 AS29113 AS29086 AS21430 AS35592 AS6830 AS39904 AS42000 AS39817 AS15935 AS38949 AS2819 AS39906 AS9002 AS34315 AS12570 AS16246 AS15598 AS2686 AS8251 AS34692 AS39235 AS28972 AS24971 AS41711 AS39790 AS16019 AS43708 AS25512 AS43413 AS42306 AS13036 AS16276 AS34080 AS35361 AS25036 AS35214 AS35236 AS48926 AS33883 AS29583
... and 23 more

Exports to (75)

AS174 AS-AVONET-CZ AS47232 AS39392 AS20723 AS47200 AS25192 AS29134 AS29321 AS29208 AS15685 AS25424 AS29113 AS29086 AS21430 AS35592 AS6830 AS39904 AS42000 AS39817 AS15935 AS38949 AS2819 AS39906 AS9002 AS34315 AS12570 AS16246 AS15598 AS2686 AS8251 AS34692 AS39235 AS28972 AS24971 AS41711 AS39790 AS16019 AS43708 AS25512 AS43413 AS42306 AS13036 AS16276 AS34080 AS35361 AS25036 AS35214 AS35236 AS48926
... and 25 more

⚠️ CIRCL BGP Security Rank: 0.1288% (position 4575)

aut-num:        AS20723
as-name:        MGI
descr:          CZ.MGI autonomous system, Czech Republic
org:            ORG-Ms3-RIPE
descr:          AVONET, s.r.o.
descr:          Internet Service Provider
descr:          ZLin
descr:          CZ
remarks:        ===== UPSTREAM PEERING =====
import:         from AS174 accept ANY
export:         to AS174 announce AS-AVONET-CZ
import:         from AS47232 accept ANY
export:         to AS47232 announce AS-AVONET-CZ
remarks:        ===== DIRECT PEEERING =====
import:         from AS39392 accept ANY
export:         to AS39392 announce AS20723
remarks:        ===== NIX.CZ PEERING =====
import:         from AS47200 accept ANY
export:         to AS47200 announce AS20723
import:         from AS25192 accept ANY
export:         to AS25192 announce AS20723
import:         from AS29134 accept ANY
export:         to AS29134 announce AS20723
import:         from AS29321 accept ANY
export:         to AS29321 announce AS20723
import:         from AS29134 accept ANY
export:         to AS29134 announce AS20723
import:         from AS29208 accept ANY
export:         to AS29208 announce AS20723
import:         from AS25192 accept ANY
export:         to AS25192 announce AS20723
import:         from AS15685 accept ANY
export:         to AS15685 announce AS20723
import:         from AS25424 accept ANY
export:         to AS25424 announce AS20723
import:         from AS29113 accept ANY
export:         to AS29113 announce AS20723
import:         from AS29086 accept ANY
export:         to AS29086 announce AS20723
import:         from AS29113 accept ANY
export:         to AS29113 announce AS20723
import:         from AS29321 accept ANY
export:         to AS29321 announce AS20723
import:         from AS21430 accept ANY
export:         to AS21430 announce AS20723
import:         from AS35592 accept ANY
export:         to AS35592 announce AS20723
import:         from AS6830 accept ANY
export:         to AS6830 announce AS20723
import:         from AS39904 accept ANY
export:         to AS39904 announce AS20723
import:         from AS42000 accept ANY
export:         to AS42000 announce AS20723
import:         from AS39817 accept ANY
export:         to AS39817 announce AS20723
import:         from AS15935 accept ANY
export:         to AS15935 announce AS20723
import:         from AS38949 accept ANY
export:         to AS38949 announce AS20723
import:         from AS2819 accept ANY
export:         to AS2819 announce AS20723
import:         from AS39906 accept ANY
export:         to AS39906 announce AS20723
import:         from AS9002 accept ANY
export:         to AS9002 announce AS20723
import:         from AS34315 accept ANY
export:         to AS34315 announce AS20723
import:         from AS12570 accept ANY
export:         to AS12570 announce AS20723
import:         from AS16246 accept ANY
export:         to AS16246 announce AS20723
import:         from AS15598 accept ANY
export:         to AS15598 announce AS20723
import:         from AS2686 accept ANY
export:         to AS2686 announce AS20723
import:         from AS8251 accept ANY
export:         to AS8251 announce AS20723
import:         from AS34692 accept ANY
export:         to AS34692 announce AS20723
import:         from AS39235 accept ANY
export:         to AS39235 announce AS20723
import:         from AS28972 accept ANY
export:         to AS28972 announce AS20723
import:         from AS24971 accept ANY
export:         to AS24971 announce AS20723
import:         from AS41711 accept ANY
export:         to AS41711 announce AS20723
import:         from AS39790 accept ANY
export:         to AS39790 announce AS20723
import:         from AS16019 accept ANY
export:         to AS16019 announce AS20723
import:         from AS43708 accept ANY
export:         to AS43708 announce AS20723
import:         from AS29208 accept ANY
export:         to AS29208 announce AS20723
import:         from AS25512 accept ANY
export:         to AS25512 announce AS20723
import:         from AS43413 accept ANY
export:         to AS43413 announce AS20723
import:         from AS42306 accept ANY
export:         to AS42306 announce AS20723
import:         from AS47232 accept ANY
export:         to AS47232 announce AS20723
import:         from AS13036 accept ANY
export:         to AS13036 announce AS20723
import:         from AS16276 accept ANY
export:         to AS16276 announce AS20723
import:         from AS34080 accept ANY
export:         to AS34080 announce AS20723
import:         from AS35361 accept ANY
export:         to AS35361 announce AS20723
import:         from AS25036 accept ANY
export:         to AS25036 announce AS20723
import:         from AS35214 accept ANY
export:         to AS35214 announce AS20723
import:         from AS35236 accept ANY
export:         to AS35236 announce AS20723
import:         from AS48926 accept ANY
export:         to AS48926 announce AS20723
import:         from AS33883 accept ANY
export:         to AS33883 announce AS20723
import:         from AS29583 accept ANY
export:         to AS29583 announce AS20723
import:         from AS28851 accept ANY
export:         to AS28851 announce AS20723
import:         from AS43541 accept ANY
export:         to AS43541 announce AS20723
import:         from AS38952 accept ANY
export:         to AS38952 announce AS20723
import:         from AS34695 accept ANY
export:         to AS34695 announce AS20723
import:         from AS5610 accept ANY
export:         to AS5610 announce AS20723
import:         from AS24806 accept ANY
export:         to AS24806 announce AS20723
import:         from AS41824 accept ANY
export:         to AS41824 announce AS20723
import:         from AS8913 accept ANY
export:         to AS8913 announce AS20723
import:         from AS30134 accept ANY
export:         to AS30134 announce AS20723
import:         from AS39791 accept ANY
export:         to AS39791 announce AS20723
import:         from AS41088 accept ANY
export:         to AS41088 announce AS20723
import:         from AS2852 accept ANY
export:         to AS2852 announce AS20723
import:         from AS43037 accept ANY
export:         to AS43037 announce AS20723
import:         from AS6939 accept ANY
export:         to AS6939 announce AS20723
import:         from AS43070 accept ANY
export:         to AS43070 announce AS20723
import:         from AS25248 accept ANY
export:         to AS25248 announce AS20723
import:         from AS50495 accept ANY
export:         to AS50495 announce AS20723
import:         from AS15614 accept ANY
export:         to AS15614 announce AS20723
import:         from AS12767 accept ANY
export:         to AS12767 announce AS20723
import:         from AS25234 accept ANY
export:         to AS25234 announce AS20723
import:         from AS112 accept ANY
export:         to AS112 announce AS20723
import:         from AS6881 accept ANY
export:         to AS6881 announce AS20723
remarks:        ===== TRANSIT PEERINGS =====
import:         from AS202874 accept { 185.150.124.0/22 }
export:         to AS202874 announce { 0.0.0.0/0 }
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         CZ-MGI-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2025-07-26T05:32:57Z
source:         RIPE
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************

Direct Membership

Macros that directly list AS20723 as a member:

AS-CECOMCZCUST-ALL(2 members)
AS-AVONET-CZ(3 members)
AS-MODERNTV(3 members)
AS-MGI-NIX(7 members)
AS-CASABLANCA-TRANSIT(29 members)
AS-CECOMCZCUST-TRANSIT(29 members)
AS-CASABLANCA-NIX(31 members)
AS-GRAPESC-CZ(39 members)
AS-GBXSCUST(44 members)
AS8251:AS-NIX-PEERINGS(49 members)
AS-CESNET-NIX-PEERS(50 members)
AS30058:AS-CUSTOMERS(50 members)
AS-TO2-NIX-PEER(63 members)
AS24971:AS-MAI-NIX-PEER(74 members)
AS42000:AS-NIXCZ-PEERINGS(80 members)
AS-SUPERNETWORK(135 members)
AS-LEVEL3-CUSTOMERS-EU(565 members)
AS-INTEROUTE(675 members)
AS-BTN-CUSTOMERS(1495 members)
AS-LEVEL3-ORIGINS-EU(7728 members)
AS-HURRICANEV6(20402 members)

Expanded Membership

All macros containing AS20723 (directly or via nested macros): 391

Show 100 macros

AS-CECOMCZCUST-ALL(2 ASNs)
AS-AVONET-CZ(3 ASNs)
AS-MODERNTV(4 ASNs)
AS-CECOMCZ-SIX(5 ASNs)
AS-MGI-NIX(7 ASNs)
AS-SLOVANET(28 ASNs)
AS-GRAPESC-CZ(38 ASNs)
AS8251:AS-NIX-PEERINGS(49 ASNs)
AS-BLUETONE-CUST(52 ASNs)
AS-CRA(52 ASNs)
AS-CRA-CZNIX(52 ASNs)
AS-CASABLANCA-TRANSIT(61 ASNs)
AS-CASABLANCA-NIX(62 ASNs)
AS-TO2-NIX-PEER(63 ASNs)
AS42000:AS-NIXCZ-PEERINGS(80 ASNs)
AS-CECOMCZCUST-CZ(120 ASNs)
AS-CECOMCZ-NIX(122 ASNs)
AS-KAORA-TRANSIT(176 ASNs)
AS-DIALTELECOM(183 ASNs)
AS-DIALTELECOM-SIX(186 ASNs)
AS-BENESTRA(191 ASNs)
AS-SWAN(191 ASNs)
AS-VODAFONE-CZ-B2B(192 ASNs)
AS-VODAFONE-CZ(201 ASNs)
AS-KAORA-PEERING(204 ASNs)
AS30058:AS-CUSTOMERS(246 ASNs)
AS30058:AS-CONE(247 ASNs)
AS-COMSOURCE(255 ASNs)
AS-TRANSCZ(261 ASNs)
AS-GTSCZ(388 ASNs)
AS-SLOVAK(406 ASNs)
AS-SUPERNETWORK(515 ASNs)
AS-LEVEL3-CUSTOMERS-EU(565 ASNs)
AS50263:AS-1-IX-WORLD-CUST(897 ASNs)
AS-INTERKVM(1,092 ASNs)
AS-ZETNET(1,092 ASNs)
AS-GTSCZ-NIX(1,405 ASNs)
AS-GTS-CE(1,469 ASNs)
AS-LEVEL3-CUSTOMERS(1,493 ASNs)
AS-BTN(1,495 ASNs)
AS-BTN-CUSTOMERS(1,495 ASNs)
AS44530:AS-DTAG(1,511 ASNs)
AS-GBXSCUST-FULL(1,996 ASNs)
AS-TDCNETEU(1,998 ASNs)
AS-GBXSCUST(2,370 ASNs)
AS-GBXS(2,661 ASNs)
AS-TDCNET(2,713 ASNs)
AS-TDCNET-IPV6(2,713 ASNs)
AS-BT6(2,741 ASNs)
AS-BELBONETOPEERS(3,364 ASNs)
AS-BELGACOM(3,364 ASNs)
AS-LEVEL3-IPV6(3,475 ASNs)
AS-SOX-SRB(3,643 ASNs)
AS-BALKAN-IX-V6(3,646 ASNs)
AS-ASTRAL(3,700 ASNs)
AS-MOBIFON(3,859 ASNs)
AS702:AS-HU-CUSTOMER(3,863 ASNs)
AS-CECOMCZCUST-TRANSIT(3,998 ASNs)
AS-CECOMCZ-TRANSIT(4,005 ASNs)
AS34565:AS-TURKIX-PARTNERS(4,030 ASNs)
AS-REALROUTE(4,267 ASNs)
AS-VODAFONE(4,645 ASNs)
AS-ARCOR(5,067 ASNs)
AS-ARCORGLOBAL(5,069 ASNs)
AS41073:AS-IPV4-INEX-PEERS(5,208 ASNs)
AS-RTD(6,186 ASNs)
AS-ORANGERO(6,233 ASNs)
AS-TDATANETEU(6,531 ASNs)
AS-TDATANET(6,679 ASNs)
AS-LEVEL3-ORIGINS-EU(7,728 ASNs)
AS-LEVELTHREEEU(7,728 ASNs)
AS-UUNETEUUK(8,356 ASNs)
AS702:AS-UK-CUSTOMER(8,356 ASNs)
AS-VODAFONE-DE(14,246 ASNs)
AS41073:AS-INEX-PEERS(14,843 ASNs)
AS-MAGYARTELEKOM(17,357 ASNs)
AS-MATAV(17,357 ASNs)
AS198792:AS-PEER-AMSIX-V4(19,486 ASNs)
AS-COMCAST-IBONE(19,609 ASNs)
AS-OCCAID6(19,611 ASNs)
AS-OCCAID6-CUSTOMERS(19,611 ASNs)
AS-EDGEUNO(19,687 ASNs)
AS-HURRICANEV6(20,402 ASNs)
AS-SEECIX-V6(20,691 ASNs)
AS56858:AS-SEECIX-V6(20,691 ASNs)
AS-DECIX-RIC-V6(20,721 ASNs)
AS393752:AS-DECIX-RIC-V6(20,721 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-TIX(21,568 ASNs)
AS-LITIX-V6(22,027 ASNs)
AS-T-CIX-V6(22,807 ASNs)
AS-BALT-IX-V6(23,949 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-CIXP(24,509 ASNs)
AS3491:AS-CUSTOMERS-NA(25,092 ASNs)
AS-FIXO-V6(25,776 ASNs)
AS-DECIX-BCN-V6(28,476 ASNs)
AS57802:AS-DECIX-BCN-V6(28,476 ASNs)
AS30781:AS-JAGUAR-PEERING-V6-SWISS-IX(28,564 ASNs)
AS-FIXO(29,811 ASNs)
AS209861:AS-PEERS(29,811 ASNs)
AS55176:AS-MEMBERS(29,827 ASNs)
... and 291 more

Upstream AS Paths

25 unique paths, avg length 2.0

AS Looking Glass

Upstream paths (matching graph above)

AS2497 → AS174 → AS20723
AS3491 → AS174 → AS20723
AS7594 → AS174 → AS20723
AS150000 → AS18187 → AS174 → AS20723
AS52320 → AS174 → AS20723
AS63927 → AS174 → AS20723
AS136557 → AS174 → AS20723
AS137409 → AS174 → AS20723
AS199524 → AS174 → AS20723
AS150000 → AS18187 → AS6939 → AS20723
AS148968 → AS6939 → AS20723
AS199518 → AS6939 → AS20723
AS1031 → AS30058 → AS20723
AS2500 → AS2914 → AS30058 → AS20723
AS49544 → AS2914 → AS30058 → AS20723
AS37721 → AS30058 → AS20723
AS36236 → AS20723
AS150000 → AS6939 → AS47232 → AS20723
AS49544 → AS20723
AS266213 → AS262355 → AS20723

All 25 Upstream Paths

Complete list of all observed paths

AS2497 → AS174 → AS20723
AS3491 → AS174 → AS20723
AS7594 → AS174 → AS20723
AS150000 → AS18187 → AS174 → AS20723
AS52320 → AS174 → AS20723
AS63927 → AS174 → AS20723
AS136557 → AS174 → AS20723
AS137409 → AS174 → AS20723
AS199524 → AS174 → AS20723
AS6939 → AS20723
AS150000 → AS18187 → AS6939 → AS20723
AS148968 → AS6939 → AS20723
AS199518 → AS6939 → AS20723
AS24482 → AS20723
AS1031 → AS30058 → AS20723
AS2500 → AS2914 → AS30058 → AS20723
AS49544 → AS2914 → AS30058 → AS20723
AS37721 → AS30058 → AS20723
AS32590 → AS20723
AS36236 → AS20723
AS6939 → AS47232 → AS20723
AS150000 → AS6939 → AS47232 → AS20723
AS49544 → AS20723
AS53062 → AS20723
AS266213 → AS262355 → AS20723

AS20723 IPv4 Address Subnets (7)

217.112.160.0/20	🇨🇿 CZ	CZ.MGI	MGI
217.115.240.0/20	🇨🇿 CZ	CZ.MGI	MGI
131.117.208.0/21	🇨🇿 CZ	AVONET, s.r.o.	MGI
178.20.136.0/21	🇨🇿 CZ	AVONET, s.r.o.	MGI
79.170.248.0/21	🇨🇿 CZ	CZ.MGI	MGI
185.111.96.0/22	🇨🇿 CZ		MGI
185.84.232.0/22	🇨🇿 CZ	AVONET, s.r.o.	MGI