AS43757 — ICZAS-CZ
AS Name: ICZAS-CZ
Organization: ORG-Ia714-RIPE
Registry: RIPE
aut-num: AS43757
as-name: ICZAS-CZ
org: ORG-Ia714-RIPE
remarks: >> =========== Czech Republic ===========
remarks: >> O2 Czech Republic
import: from AS5610 accept ANY
export: to AS5610 announce {78.31.24.0/21};
remarks: >> T-Mobile Czech Republic (GTS CZ)
import: from AS5588 accept ANY
export: to AS5588 announce {78.31.24.0/21};
remarks: >> =========== Slovakia =================
remarks: >> Slovak Telekom
import: from AS6855 accept ANY
export: to AS6855 announce {192.108.126.0/24};
remarks: >> Slovanet
import: from AS8778 accept ANY
export: to AS8778 announce {192.108.126.0/24};
remarks: >> SWAN
import: from AS5578 accept ANY
export: to AS5578 announce {192.108.126.0/24};
remarks: >> ======================================
mp-import: afi ipv6.unicast from AS5610 accept ANY
mp-export: afi ipv6.unicast to AS5610 announce AS43757
mp-import: afi ipv6.unicast from AS5588 accept ANY
mp-export: afi ipv6.unicast to AS5588 announce AS43757
remarks: >> ======================================
admin-c: DUMY-RIPE
tech-c: DUMY-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: ICZAS-MNT
created: 2007-09-24T13:16:02Z
last-modified: 2025-10-02T08:48:24Z
source: RIPE
sponsoring-org: ORG-Ra2-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 AS43757 as a member:
AS702:AS-CZ-CUSTOMER(5 members)
AS-SLOVANET(26 members)
AS-CTIOL(108 members)
AS-GTSCZ-CUST(120 members)
Expanded Membership
All macros containing AS43757 (directly or via nested macros): 318
Show 100 macros
AS702:AS-CZ-CUSTOMER(5 ASNs)
AS-SLOVANET(28 ASNs)
AS-CECOMCZCUST-CZ(120 ASNs)
AS-CECOMCZ-NIX(122 ASNs)
AS-GTSCZ-CUST(135 ASNs)
AS-BENESTRA(191 ASNs)
AS-SWAN(191 ASNs)
AS-CTIOL(192 ASNs)
AS-COMSOURCE(255 ASNs)
AS-TRANSCZ(261 ASNs)
AS-GTSCZ(388 ASNs)
AS-SLOVAK(406 ASNs)
AS-SUPERNETWORK(515 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-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-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-OCCAID6(19,611 ASNs)
AS-OCCAID6-CUSTOMERS(19,611 ASNs)
AS3491:AS-CUSTOMERS-NA(25,092 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)
AS-IXPLAY(30,348 ASNs)
AS-STARTNIX-EU(30,348 ASNs)
AS-T-CIX(36,150 ASNs)
AS-LSC-IXP-RS(38,302 ASNs)
AS-LSC-IXP(38,312 ASNs)
AS-DECIX-DFW-V6(40,077 ASNs)
AS62499:AS-DECIX-DFW-V6(40,077 ASNs)
AS-4IXP(42,438 ASNs)
AS702:AS-CUSTOMER(43,022 ASNs)
AS-DECIX-DFW(43,178 ASNs)
AS62499:AS-DECIX-DFW(43,178 ASNs)
AS-INTEROUTE(43,471 ASNs)
AS-RETN6(44,950 ASNs)
AS-ECIX-BER(45,114 ASNs)
AS-TELIANETRU-V6(45,288 ASNs)
AS1299:AS-TWELVE99-RU-V6(45,288 ASNs)
AS-ECIX-HAM(46,249 ASNs)
AS-RETN(47,667 ASNs)
AS-ECIX-MUC(48,469 ASNs)
AS-ECIX-DUS(48,854 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-BIX-V6(56,058 ASNs)
AS-TELIANETRU(56,840 ASNs)
AS1299:AS-TWELVE99-RU-V4(56,840 ASNs)
AS-SEABONE-V6(57,112 ASNs)
AS3491:AS-CUSTOMERS-AP(58,474 ASNs)
AS1273:AS-CWW(59,499 ASNs)
AS-LEVEL3-UAE(60,102 ASNs)
AS-PLIX6(60,222 ASNs)
AS-SET-INEX-RS(60,298 ASNs)
AS-BCIX-RS(61,123 ASNs)
AS16374:AS-BCIX-RS(61,123 ASNs)
AS-CAIS(61,483 ASNs)
AS213687:AS-ERA-IX-FRANKFURT(61,777 ASNs)
AS-SOVAM-V6(64,052 ASNs)
AS-SOVAM6(64,052 ASNs)
AS-HKIX(64,663 ASNs)
AS-PANTEL(65,191 ASNs)
... and 218 more
Upstream AS Paths
36 unique paths, avg length 2.6
AS Looking Glass
Upstream paths (matching graph above)
All 36 Upstream Paths
Complete list of all observed paths
AS43757 IPv4 Address Subnets (2)
| 78.31.24.0/21 | 🇨🇿 CZ | ICZ PI Network | ICZAS-CZ |
| 192.108.126.0/24 | 🇨🇿 CZ | ICZ PI - Slovakia | ICZAS-CZ |
AS43757 IPv6 Address Subnets (1)
| 2001:67c:1578::/48 | 🇨🇿 CZ | ICZ PI Network | ICZAS-CZ |