ICZAS-CZ

AS43757 · CZ · RIPENCC
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3
Upstream providers
0
Downstream customers
2.3k
v4 addresses
<0.1
v6 /32s

Provider History

Active Possible trial (<90d) Historical

Current Providers

Provider First Seen Last Seen Peers Confidence
SK-TELEKOM
AS6855
 2024-10-01
1y 7mo
 2026-05-02
128 peers
AS209 AS835 AS999 AS1031 AS2152 AS2500 AS2914 AS3257 AS3491 AS3549 AS4128 AS4641 AS4775 AS6424 AS6453 AS6762 AS6830 AS7018 AS8220 AS12956 AS14907 AS15562 AS16276 AS17350 AS17660 AS20080 AS23673 AS27986 AS29140 AS32590 AS34927 AS35280 AS41095 AS48112 AS49544 AS51185 AS52075 AS52468 AS52873 AS53062 AS53828 AS55720 AS132884 AS151704 AS199524 AS262462 AS263152 AS264409 AS264479 AS266213 AS267613 AS398465
O2-CZECH-REPUBLIC
AS5610
 2024-10-01
1y 7mo
 2026-05-02
129 peers
AS209 AS260 AS1031 AS1103 AS1273 AS3257 AS3491 AS4775 AS5580 AS6453 AS6730 AS6762 AS8426 AS8582 AS16260 AS16552 AS35280 AS37497 AS38001 AS49605 AS148968 AS197580 AS199524 AS206271 AS216285 AS271253 AS328206
AS-BENESTRA
AS5578
 2025-10-03
7mo
 2026-05-02
55 peers
AS209 AS999 AS1031 AS2152 AS3257 AS3491 AS5392 AS5580 AS6453 AS6730 AS6762 AS6830 AS8426 AS8582 AS12956 AS16552 AS17350 AS27986 AS30950 AS32590 AS34927 AS38001 AS41095 AS41811 AS48112 AS49434 AS49544 AS49605 AS51185 AS52468 AS52873 AS53828 AS57821 AS132847 AS134823 AS197580 AS199524 AS216285 AS262462

Customers (0)

No customers in current snapshot.

Network Size

IPv4 and IPv6 prefixes originated over time

2
v4 prefixes
2.3k
v4 addresses
1
v6 prefixes
<0.1
v6 /32s

Unclassified Peers Over Time

Count of unclassified adjacencies per snapshot date

Event Log

All New Transit Lost Transit Possible Trial Renewal Approaching
2024-11-02
New Transit
ICZAS-CZ AS43757 → added provider SLOVANET AS8778
Confidence: 90%
⇄
2024-11-02
New Transit
ICZAS-CZ AS43757 → added provider SK-TELEKOM AS6855
Confidence: 90%
⇄
2024-11-02
New Transit
ICZAS-CZ AS43757 → added provider O2-CZECH-REPUBLIC AS5610
Confidence: 90%
⇄
2024-10-02
New Transit
ICZAS-CZ AS43757 → added provider SLOVANET AS8778
Confidence: 90%
⇄
2024-10-02
New Transit
ICZAS-CZ AS43757 → added provider SK-TELEKOM AS6855
Confidence: 90%
⇄
2024-10-02
New Transit
ICZAS-CZ AS43757 → added provider O2-CZECH-REPUBLIC AS5610
Confidence: 90%
⇄

Renewal Calendar

Active providers first seen 11–13 months ago — possible annual contract renewals

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