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K2_INT

AS51219 · RU · RIPENCC
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6
Upstream providers
1
Downstream customers
18k
v4 addresses
8
v6 /32s

Provider History

Active Possible trial (<90d) Historical

Current Providers

Addr family: All IPv4 IPv6
Provider First Seen Last Seen Peers Confidence AF
CIREX
AS199599
 2024-09-01
1y 9mo
 2026-06-09
194 peers
AS260 AS3257 AS5580 AS8582
v4 v6
GNM-AS
AS31500
 2024-09-01
1y 9mo
 2026-06-09
88 peers
AS209 AS3549 AS7594
v4 v6
AS-SERVICEPIPE
AS201706
 2025-09-16
9mo
 2026-06-09
66 peers
AS174 AS209 AS835 AS852 AS924 AS1351 AS2500 AS2914 AS3130 AS3257 AS3320 AS3491 AS3549 AS4128 AS4641 AS5580 AS6082 AS6461 AS6730 AS6830 AS6894 AS7018 AS7594 AS8582 AS11039 AS14537 AS15562 AS15692 AS16276 AS16552 AS19529 AS20080 AS21700 AS22652 AS23673 AS24516 AS34927 AS35266 AS38008 AS40864 AS45437 AS46997 AS49544 AS52468 AS53828 AS55222 AS55720 AS57821 AS59414 AS60602 AS61138 AS64112 AS132825 AS134823 AS136557 AS151326 AS197580 AS199524 AS200612 AS212271 AS265721 AS327960 AS328840 AS398465
v4 v6
TWELVE99
AS1299
 2024-10-19
1y 8mo
 2026-06-09
56 peers
AS174 AS917 AS1351 AS2500 AS2914 AS3130 AS3257 AS3320 AS3491 AS4128 AS5580 AS6082 AS6461 AS6830 AS7018 AS11039 AS16276 AS16552 AS19529 AS20080 AS21700 AS24516 AS38008 AS40864 AS45437 AS46997 AS49544 AS52468 AS53828 AS61138 AS64112 AS134823 AS136557 AS151326 AS197580 AS198150 AS199524 AS212271 AS262427 AS327960 AS328840
v4 v6
RETN-AS
AS9002
 2024-09-01
1y 9mo
 2026-06-09
36 peers
AS209 AS3549
v4 v6
CITYTELECOM-AS
AS29076
 2024-09-10
1y 9mo
 2026-06-09
15 peers
AS260 AS5580 AS8582
v4 v6

Customers (1)

Addr family: All IPv4 IPv6
Customer Country First Seen Last Seen IPs Peers Confidence AF
Stroymontag-AS
AS60779
 RU 2024-09-01
1y 9mo
 2026-06-09 256
47 peers
AS174 AS209 AS917 AS1351 AS2500 AS2734 AS2914 AS3130 AS3257 AS3320 AS3491 AS3549 AS4128 AS5580 AS6082 AS6830 AS7018 AS7594 AS11039 AS16276 AS16552 AS19529 AS20080 AS21700 AS24516 AS25152 AS32709 AS38008 AS40864 AS45437 AS46997 AS49544 AS52468 AS53828 AS61138 AS64112 AS134823 AS136557 AS151326 AS197580 AS198150 AS199524 AS212271 AS262427 AS327960 AS328840
v4 v6

Network Size

IPv4 and IPv6 prefixes originated over time

46
v4 prefixes
18k
v4 addresses
1
v6 prefixes
8
v6 /32s

Peering Links Over Time

Count of unclassified adjacencies per snapshot date

Event Log

All New Transit Lost Transit Possible Trial Renewal Approaching
2026-05-14
Lost Transit
K2_INT AS51219 → lost provider RETN-AS AS9002
Confidence: 85% Duration: 619d
⇄
2026-01-01
New Transit
K2_INT AS51219 → added provider CIREX AS199599
Confidence: 90%
⇄
2025-11-27
Lost Transit
K2_INT AS51219 → lost provider CIREX AS199599
Confidence: 85% Duration: 451d
⇄
2025-11-27
Lost Transit
AS27263 AS27263 → lost provider K2_INT AS51219
Confidence: 85% Duration: 451d
⇄
2025-11-03
New Transit
K2_INT AS51219 → added provider AS-SERVICEPIPE AS201706
Confidence: 90%
⇄
2025-11-02
Lost Transit
CROC-AS AS33903 → lost provider K2_INT AS51219
Confidence: 85% Duration: 426d
⇄
2025-10-31
New Transit
K2_INT AS51219 → added provider CITYTELECOM-AS AS29076
Confidence: 90%
⇄
2025-10-29
New Transit
CROC-AS AS33903 → added provider K2_INT AS51219
Confidence: 90%
⇄
2025-10-28
Lost Transit
K2_INT AS51219 → lost provider CIREX AS199599
Confidence: 85% Duration: 421d
⇄
2025-10-28
Lost Transit
AS27263 AS27263 → lost provider K2_INT AS51219
Confidence: 85% Duration: 421d
⇄
2025-10-26
Possible Trial
K2_INT AS51219 → possible trial with AS-SERVICEPIPE AS201706
Confidence: 60%
⇄
2025-09-17
Lost Transit
K2_INT AS51219 → lost provider AS-SERVICEPIPE AS201706
Confidence: 85%
⇄
2025-09-15
Lost Transit
K2_INT AS51219 → lost provider TWELVE99 AS1299
Confidence: 85% Duration: 330d
⇄
2025-09-05
Lost Transit
K2_INT AS51219 → lost provider CITYTELECOM-AS AS29076
Confidence: 85% Duration: 359d
⇄
2025-08-28
Lost Transit
CROC-AS AS33903 → lost provider K2_INT AS51219
Confidence: 85% Duration: 360d
⇄
2025-08-27
New Transit
CROC-AS AS33903 → added provider K2_INT AS51219
Confidence: 90%
⇄
2025-08-26
Lost Transit
CITYTELECOM-AS AS29076 → lost provider K2_INT AS51219
Confidence: 85% Duration: 291d
⇄
2025-08-24
Possible Trial
K2_INT AS51219 → possible trial with GARS-AS AS31261
Confidence: 60%
⇄
2025-08-21
Lost Transit
SVYAZNOY-CHAIN-AS AS34485 → lost provider K2_INT AS51219
Confidence: 85% Duration: 113d
⇄
2025-08-17
Lost Transit
K2_INT AS51219 → lost provider GARS-AS AS31261
Confidence: 85% Duration: 32d
⇄
2025-08-17
New Transit
CITYTELECOM-AS AS29076 → added provider K2_INT AS51219
Confidence: 90%
⇄
2025-08-16
Lost Transit
RETNRU-AS AS57304 → lost provider K2_INT AS51219
Confidence: 85% Duration: 348d
⇄
2025-08-13
Lost Transit
INFOTECS-AS AS59604 → lost provider K2_INT AS51219
Confidence: 85% Duration: 345d
⇄
2025-08-12
New Transit
RETNRU-AS AS57304 → added provider K2_INT AS51219
Confidence: 90%
⇄
2025-08-11
Lost Transit
CITYTELECOM-AS AS29076 → lost provider K2_INT AS51219
Confidence: 85% Duration: 276d
⇄
2025-08-06
Lost Transit
RETNRU-AS AS57304 → lost provider K2_INT AS51219
Confidence: 85% Duration: 338d
⇄
2025-08-06
Lost Transit
K2_INT AS51219 → lost provider CITYTELECOM-AS AS29076
Confidence: 85% Duration: 329d
⇄
2025-07-31
New Transit
CITYTELECOM-AS AS29076 → added provider K2_INT AS51219
Confidence: 90%
⇄
2025-07-19
Lost Transit
CITYTELECOM-AS AS29076 → lost provider K2_INT AS51219
Confidence: 85% Duration: 253d
⇄
2025-07-16
Lost Transit
K2_INT AS51219 → lost provider GARS-AS AS31261
Confidence: 85%
⇄
2025-07-02
New Transit
CITYTELECOM-AS AS29076 → added provider K2_INT AS51219
Confidence: 90%
⇄
2025-06-26
Lost Transit
SVYAZNOY-CHAIN-AS AS34485 → lost provider K2_INT AS51219
Confidence: 85% Duration: 57d
⇄
2025-06-25
New Transit
RETNRU-AS AS57304 → added provider K2_INT AS51219
Confidence: 90%
⇄
2025-06-25
Lost Transit
CITYTELECOM-AS AS29076 → lost provider K2_INT AS51219
Confidence: 85% Duration: 229d
⇄
2025-06-08
Possible Trial
SVYAZNOY-CHAIN-AS AS34485 → possible trial with K2_INT AS51219
Confidence: 60%
⇄
2025-05-31
Lost Transit
K2_INT AS51219 → lost provider CROC_INC_1 AS214524
Confidence: 85% Duration: 271d
⇄
2025-05-29
Lost Transit
RETNRU-AS AS57304 → lost provider K2_INT AS51219
Confidence: 85% Duration: 269d
⇄
2025-05-27
Lost Transit
K2_INT AS51219 → lost provider RETN-AS AS9002
Confidence: 85% Duration: 267d
⇄
2025-05-24
Lost Transit
CITYTELECOM-AS AS29076 → lost provider K2_INT AS51219
Confidence: 85% Duration: 197d
⇄
2025-05-22
New Transit
K2_INT AS51219 → added provider RETN-AS AS9002
Confidence: 90%
⇄
2025-05-17
Lost Transit
SVYAZNOY-CHAIN-AS AS34485 → lost provider K2_INT AS51219
Confidence: 85% Duration: 17d
⇄
2025-05-17
New Transit
CITYTELECOM-AS AS29076 → added provider K2_INT AS51219
Confidence: 90%
⇄
2025-05-16
Lost Transit
K2_INT AS51219 → lost provider RETN-AS AS9002
Confidence: 85% Duration: 256d
⇄
2025-05-14
New Transit
K2_INT AS51219 → added provider RETN-AS AS9002
Confidence: 90%
⇄
2025-05-01
Lost Transit
CITYTELECOM-AS AS29076 → lost provider K2_INT AS51219
Confidence: 85% Duration: 174d
⇄
2025-04-30
Lost Transit
SVYAZNOY-CHAIN-AS AS34485 → lost provider K2_INT AS51219
Confidence: 85%
⇄
2025-04-30
New Transit
CITYTELECOM-AS AS29076 → added provider K2_INT AS51219
Confidence: 90%
⇄
2025-04-29
Lost Transit
K2_INT AS51219 → lost provider RETN-AS AS9002
Confidence: 85% Duration: 239d
⇄
2025-04-26
New Transit
K2_INT AS51219 → added provider GNM-AS AS31500
Confidence: 90%
⇄
2025-04-25
Lost Transit
K2_INT AS51219 → lost provider CITYTELECOM-AS AS29076
Confidence: 85% Duration: 226d
⇄
2025-04-25
Lost Transit
K2_INT AS51219 → lost provider TWELVE99 AS1299
Confidence: 85% Duration: 187d
⇄
2025-04-06
New Transit
RETNRU-AS AS57304 → added provider K2_INT AS51219
Confidence: 90%
⇄
2025-04-03
Lost Transit
K2_INT AS51219 → lost provider GNM-AS AS31500
Confidence: 85% Duration: 213d
⇄
2025-03-31
Lost Transit
RETNRU-AS AS57304 → lost provider K2_INT AS51219
Confidence: 85% Duration: 210d
⇄
2025-03-29
Lost Transit
CROC-AS AS33903 → lost provider K2_INT AS51219
Confidence: 85% Duration: 208d
⇄
2025-03-16
Lost Transit
K2_INT AS51219 → lost provider RETN-AS AS9002
Confidence: 85% Duration: 195d
⇄
2025-03-12
New Transit
RETNRU-AS AS57304 → added provider K2_INT AS51219
Confidence: 90%
⇄
2025-03-01
New Transit
CROC-AS AS33903 → added provider K2_INT AS51219
Confidence: 90%
⇄
2025-02-21
Lost Transit
CROC-AS AS33903 → lost provider K2_INT AS51219
Confidence: 85% Duration: 172d
⇄
2025-02-20
New Transit
CROC-AS AS33903 → added provider K2_INT AS51219
Confidence: 90%
⇄
2025-02-18
Lost Transit
K2_INT AS51219 → lost provider RETN-AS AS9002
Confidence: 85% Duration: 169d
⇄
2025-02-12
Lost Transit
CROC-AS AS33903 → lost provider K2_INT AS51219
Confidence: 85% Duration: 163d
⇄
2025-02-09
Lost Transit
K2_INT AS51219 → lost provider RETN-AS AS9002
Confidence: 85% Duration: 160d
⇄
2025-01-30
New Transit
CROC-AS AS33903 → added provider K2_INT AS51219
Confidence: 90%
⇄
2025-01-13
Lost Transit
RETNRU-AS AS57304 → lost provider K2_INT AS51219
Confidence: 85% Duration: 133d
⇄
2025-01-12
New Transit
RETNRU-AS AS57304 → added provider K2_INT AS51219
Confidence: 90%
⇄
2025-01-08
Lost Transit
CROC-AS AS33903 → lost provider K2_INT AS51219
Confidence: 85% Duration: 128d
⇄
2024-12-17
Possible Trial
CITYTELECOM-AS AS29076 → possible trial with K2_INT AS51219
Confidence: 60%
⇄
2024-12-07
New Transit
K2_INT AS51219 → added provider CIREX AS199599
Confidence: 90%
⇄
2024-12-07
Lost Transit
CITYTELECOM-AS AS29076 → lost provider K2_INT AS51219
Confidence: 85% Duration: 29d
⇄
2024-12-07
New Transit
AS27263 AS27263 → added provider K2_INT AS51219
Confidence: 90%
⇄
2024-11-26
Lost Transit
K2_INT AS51219 → lost provider CIREX AS199599
Confidence: 85% Duration: 85d
⇄
2024-11-26
Lost Transit
AS27263 AS27263 → lost provider K2_INT AS51219
Confidence: 85% Duration: 85d
⇄
2024-11-21
Lost Transit
CITYTELECOM-AS AS29076 → lost provider K2_INT AS51219
Confidence: 85% Duration: 13d
⇄
2024-11-12
Lost Transit
RETNRU-AS AS57304 → lost provider K2_INT AS51219
Confidence: 85% Duration: 71d
⇄
2024-11-12
Lost Transit
K2_INT AS51219 → lost provider CIREX AS199599
Confidence: 85% Duration: 71d
⇄
2024-11-10
New Transit
RETNRU-AS AS57304 → added provider K2_INT AS51219
Confidence: 90%
⇄
2024-11-10
New Transit
K2_INT AS51219 → added provider CIREX AS199599
Confidence: 90%
⇄
2024-11-08
Lost Transit
CITYTELECOM-AS AS29076 → lost provider K2_INT AS51219
Confidence: 85%
⇄
2024-10-21
Possible Trial
K2_INT AS51219 → possible trial with CIREX AS199599
Confidence: 60% Duration: 10d
⇄
2024-10-21
Possible Trial
AS27263 AS27263 → possible trial with K2_INT AS51219
Confidence: 60% Duration: 10d
⇄
2024-10-20
New Transit
K2_INT AS51219 → added provider TWELVE99 AS1299
Confidence: 90%
⇄
2024-10-15
Lost Transit
K2_INT AS51219 → lost provider CIREX AS199599
Confidence: 85% Duration: 43d
⇄
2024-10-15
Lost Transit
AS27263 AS27263 → lost provider K2_INT AS51219
Confidence: 85% Duration: 43d
⇄
2024-10-11
Possible Trial
RETNRU-AS AS57304 → possible trial with K2_INT AS51219
Confidence: 60%
⇄
2024-09-19
Lost Transit
RETNRU-AS AS57304 → lost provider K2_INT AS51219
Confidence: 85% Duration: 17d
⇄
2024-09-14
Lost Transit
K2_INT AS51219 → lost provider CITYTELECOM-AS AS29076
Confidence: 85% Duration: 3d
⇄
2024-09-11
New Transit
K2_INT AS51219 → added provider CITYTELECOM-AS AS29076
Confidence: 90%
⇄
2024-09-02
New Transit
Stroymontag-AS AS60779 → added provider K2_INT AS51219
Confidence: 90%
⇄
2024-09-02
New Transit
INFOTECS-AS AS59604 → added provider K2_INT AS51219
Confidence: 90%
⇄
2024-09-02
New Transit
RETNRU-AS AS57304 → added provider K2_INT AS51219
Confidence: 90%
⇄
2024-09-02
New Transit
K2_INT AS51219 → added provider CROC_INC_1 AS214524
Confidence: 90%
⇄
2024-09-02
New Transit
K2_INT AS51219 → added provider CIREX AS199599
Confidence: 90%
⇄
2024-09-02
New Transit
K2_INT AS51219 → added provider GNM-AS AS31500
Confidence: 90%
⇄
2024-09-02
New Transit
K2_INT AS51219 → added provider RETN-AS AS9002
Confidence: 90%
⇄
2024-09-02
New Transit
CROC-AS AS33903 → added provider K2_INT AS51219
Confidence: 90%
⇄
2024-09-02
New Transit
AS27263 AS27263 → added provider K2_INT AS51219
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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