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CDT-AS

AS25512 · The Czech Republic · CZ · RIPENCC
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2
Upstream providers
2
Downstream customers
118k
v4 addresses
1
v6 /32s

Provider History

Active Possible trial (<90d) Historical

Current Providers

Addr family: All IPv4 IPv6
Provider First Seen Last Seen Peers Confidence AF
AS174
AS174
 2024-09-01
1y 9mo
 2026-06-13
186 peers
AS209 AS260 AS999 AS1031 AS1103 AS1273 AS1299 AS1828 AS2152 AS3214 AS3257 AS3491 AS4641 AS4775 AS5392 AS5394 AS5580 AS6204 AS6453 AS6461 AS6730 AS6762 AS6830 AS6881 AS6894 AS8218 AS8220 AS8426 AS8582 AS11845 AS12956 AS13030 AS16276 AS16552 AS17290 AS17350 AS17660 AS20811 AS23673 AS28329 AS28824 AS28917 AS30950 AS31122 AS31554 AS32590 AS34927 AS35280 AS36924 AS37468 AS37497 AS37697 AS38001 AS41095 AS41811 AS42473 AS48112 AS48362 AS49028 AS49432 AS49434 AS49544 AS49605 AS51185 AS52075 AS52468 AS52873 AS53062 AS53828 AS57821 AS58717 AS59414 AS61832 AS132884 AS134823 AS151704 AS197580 AS199524 AS206271 AS212317 AS215230 AS215859 AS216285 AS262462 AS263541 AS263702 AS264479 AS271253 AS328206 AS328840 AS328964 AS398465
?af
TWELVE99
AS1299
 2024-09-01
1y 9mo
 2026-06-13
112 peers
AS209 AS260 AS701 AS999 AS1031 AS1103 AS1273 AS2152 AS2500 AS2914 AS3257 AS3320 AS3491 AS3549 AS4128 AS4608 AS4641 AS4775 AS5580 AS6204 AS6453 AS6730 AS6762 AS6830 AS6881 AS7018 AS7768 AS8220 AS8426 AS8582 AS12956 AS14315 AS14537 AS15562 AS16276 AS16552 AS17350 AS17660 AS20080 AS23673 AS28329 AS28624 AS28917 AS29140 AS32590 AS34927 AS35280 AS35710 AS41095 AS41811 AS47147 AS47957 AS49434 AS49544 AS49605 AS51185 AS52075 AS52468 AS52873 AS53062 AS53828 AS55720 AS57821 AS64475 AS132884 AS142289 AS150369 AS151704 AS199524 AS206271 AS215230 AS216285 AS262462 AS263152 AS263541 AS263702 AS264409 AS264479 AS266213 AS267613 AS268976 AS271253 AS328206 AS328964 AS398465
?af

Customers (2)

Addr family: All IPv4 IPv6
Customer Country First Seen Last Seen IPs Peers Confidence AF
kazaczsro
AS20609
 CZ 2024-09-01
1y 9mo
 2026-06-13 2k
76 peers
AS209 AS999 AS1031 AS1103 AS2152 AS2500 AS2914 AS3214 AS3257 AS3320 AS3491 AS3549 AS4128 AS4641 AS4775 AS5392 AS5580 AS6453 AS6730 AS6762 AS6830 AS7018 AS7768 AS8220 AS8426 AS8582 AS12956 AS15562 AS16276 AS16552 AS17350 AS17660 AS20080 AS23673 AS28329 AS28917 AS29140 AS30950 AS32590 AS34927 AS35280 AS35710 AS37697 AS38001 AS41095 AS41811 AS49434 AS49544 AS49605 AS51185 AS52075 AS52468 AS52873 AS53828 AS55720 AS57821 AS64475 AS132884 AS134823 AS142289 AS150369 AS151704 AS197580 AS199524 AS216285 AS262462 AS263541 AS264409 AS266213 AS267613
?af
OMEGAPLUS-AS
AS35046
 CZ 2024-09-01
1y 9mo
 2026-06-13 7.2k
34 peers
AS197580 AS216285
?af

Network Size

IPv4 and IPv6 prefixes originated over time

11
v4 prefixes
118k
v4 addresses
1
v6 prefixes
1
v6 /32s

Peering Links Over Time

Count of unclassified adjacencies per snapshot date

Event Log

All New Transit Lost Transit Possible Trial Renewal Approaching
2026-06-10
Lost Transit
OMEGAPLUS-AS AS35046 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 646d
⇄
2026-05-16
New Transit
RESAL-AS AS56717 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2026-05-07
New Transit
OMEGAPLUS-AS AS35046 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2026-05-05
Lost Transit
Arenis AS200678 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 610d
⇄
2026-04-21
Lost Transit
prgaero AS216450 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 360d
⇄
2026-03-29
Lost Transit
OMEGAPLUS-AS AS35046 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 573d
⇄
2026-03-27
Lost Transit
MUZO-AS AS21241 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 527d
⇄
2026-03-22
Lost Transit
RESAL-AS AS56717 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 566d
⇄
2026-02-27
Lost Transit
OMEGAPLUS-AS AS35046 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 543d
⇄
2026-02-17
New Transit
SKODA-AUTO AS20708 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2026-02-01
New Transit
cz-fresh AS206159 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2026-01-23
Lost Transit
OMEGAPLUS-AS AS35046 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 508d
⇄
2026-01-16
New Transit
AS_RVTECH AS60275 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2025-12-10
Lost Transit
OMEGAPLUS-AS AS35046 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 464d
⇄
2025-11-02
Lost Transit
RCO-AS AS47767 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 426d
⇄
2025-10-03
Lost Transit
WEDOS AS197019 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 210d
⇄
2025-10-03
Lost Transit
OMEGAPLUS-AS AS35046 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 396d
⇄
2025-09-25
New Transit
prgaero AS216450 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2025-09-16
Lost Transit
prgaero AS216450 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 143d
⇄
2025-09-11
New Transit
prgaero AS216450 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2025-08-22
New Transit
WEDOS AS197019 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2025-08-16
Lost Transit
WEDOS AS197019 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 162d
⇄
2025-08-13
Lost Transit
AS_RVTECH AS60275 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 345d
⇄
2025-08-09
Lost Transit
WEDOS AS197019 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 155d
⇄
2025-07-14
Lost Transit
WEDOS AS197019 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 129d
⇄
2025-06-22
New Transit
WEDOS AS197019 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2025-06-19
Possible Trial
prgaero AS216450 → possible trial with CDT-AS AS25512
Confidence: 60% Duration: 15d
⇄
2025-06-15
New Transit
OMEGAPLUS-AS AS35046 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2025-06-13
Lost Transit
prgaero AS216450 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 48d
⇄
2025-06-08
Lost Transit
WEDOS AS197019 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 93d
⇄
2025-05-26
Lost Transit
WEDOS AS197019 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 80d
⇄
2025-05-23
New Transit
WEDOS AS197019 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2025-05-02
Lost Transit
OMEGAPLUS-AS AS35046 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 242d
⇄
2025-04-26
New Transit
prgaero AS216450 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2025-04-22
Lost Transit
OMEGAPLUS-AS AS35046 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 232d
⇄
2025-04-18
New Transit
OMEGAPLUS-AS AS35046 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2025-04-15
Possible Trial
WEDOS AS197019 → possible trial with CDT-AS AS25512
Confidence: 60%
⇄
2025-04-11
New Transit
RCO-AS AS47767 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2025-04-08
Lost Transit
OMEGAPLUS-AS AS35046 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 218d
⇄
2025-03-29
New Transit
OMEGAPLUS-AS AS35046 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2025-03-19
Lost Transit
OMEGAPLUS-AS AS35046 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 198d
⇄
2025-03-07
Lost Transit
WEDOS AS197019 → lost provider CDT-AS AS25512
Confidence: 85%
⇄
2025-01-30
Lost Transit
RCO-AS AS47767 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 150d
⇄
2024-12-22
Possible Trial
MUZO-AS AS21241 → possible trial with CDT-AS AS25512
Confidence: 60% Duration: 28d
⇄
2024-12-02
Lost Transit
KTUO-AS AS51449 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 91d
⇄
2024-11-28
New Transit
OMEGAPLUS-AS AS35046 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-11-13
Lost Transit
MUZO-AS AS21241 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 28d
⇄
2024-10-27
Possible Trial
OMEGAPLUS-AS AS35046 → possible trial with CDT-AS AS25512
Confidence: 60% Duration: 16d
⇄
2024-10-16
Lost Transit
OMEGAPLUS-AS AS35046 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 44d
⇄
2024-09-18
Lost Transit
OMEGAPLUS-AS AS35046 → lost provider CDT-AS AS25512
Confidence: 85% Duration: 16d
⇄
2024-09-02
New Transit
TESUNET AS213387 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-09-02
New Transit
THOSTING-AS AS200828 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-09-02
New Transit
Arenis AS200678 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-09-02
New Transit
CADCANET AS200355 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-09-02
New Transit
ASINET4YOU AS197550 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-09-02
New Transit
AS_RVTECH AS60275 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-09-02
New Transit
ASMIRNETCZ AS56827 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-09-02
New Transit
RESAL-AS AS56717 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-09-02
New Transit
ALBERON_AS AS56450 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-09-02
New Transit
ASNETDELUXE AS51524 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-09-02
New Transit
ModernTV AS51331 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-09-02
New Transit
AVX_AS AS50975 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-09-02
New Transit
SUPRO-AS AS47868 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-09-02
New Transit
RCO-AS AS47767 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-09-02
New Transit
PH AS47131 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-09-02
New Transit
ECONOMIA-CZ AS43614 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-09-02
New Transit
RETE-AS AS43507 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-09-02
New Transit
CDT-AS AS25512 → added provider TWELVE99 AS1299
Confidence: 90%
⇄
2024-09-02
New Transit
CDT-AS AS25512 → added provider AS174 AS174
Confidence: 90%
⇄
2024-09-02
New Transit
kazaczsro AS20609 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-09-02
New Transit
NIXCZ AS6881 → added provider CDT-AS AS25512
Confidence: 90%
⇄
2024-09-02
New Transit
ASITPROFI AS3161 → added provider CDT-AS AS25512
Confidence: 90%
⇄

Renewal Calendar

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

This data is available to subscribers.

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