ZSTTKAS

AS21127 · Novosibirsk, Russia · RU · RIPENCC

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Upstream providers

Downstream customers

232k

v4 addresses

v6 /32s

Provider History

Active Possible trial (<90d) Historical

Current Providers

Addr family: All IPv4 IPv6

Provider	First Seen	Last Seen	Peers	Confidence	AF
TRANSTELECOM AS20485	2024-09-01 1y 8mo	2026-05-14	118 peers AS209 AS260 AS513 AS701 AS999 AS1213 AS1273 AS1351 AS2500 AS2914 AS3130 AS3170 AS3257 AS3320 AS3491 AS3549 AS4128 AS4775 AS5392 AS5580 AS6082 AS6424 AS6730 AS6762 AS6830 AS6894 AS7018 AS7594 AS7713 AS8582 AS12637 AS12956 AS14537 AS14907 AS15562 AS16276 AS17350 AS19151 AS24516 AS27678 AS27986 AS28329 AS29680 AS34927 AS37271 AS37497 AS38008 AS41811 AS45437 AS46997 AS47147 AS48112 AS49544 AS50300 AS52468 AS52873 AS53828 AS55720 AS57821 AS63956 AS64112 AS136557 AS142289 AS151704 AS197580 AS199524 AS206271 AS216285 AS262427 AS262462 AS263009 AS263541 AS264409 AS266213 AS271253 AS328206 AS328964 AS398465		v4 v6

Customers (7)

Addr family: All IPv4 IPv6

Customer	Country	First Seen	Last Seen	IPs	Peers	AF
MUNIC AS30871	RU	2024-09-01 1y 8mo	2026-05-14	768	67 peers AS209 AS999 AS2500 AS2914 AS3257 AS3320 AS3549 AS4128 AS5392 AS5580 AS6730 AS6830 AS7018 AS8582 AS12637 AS12956 AS14907 AS15562 AS16276 AS28329 AS34927 AS41811 AS48112 AS49544 AS52468 AS52873 AS53828 AS55720 AS57821 AS142289 AS151704 AS262462 AS263541 AS264409 AS266213 AS398465	v4 v6
INTELBI-AS AS31364	RU	2024-09-01 1y 8mo	2026-05-14	23k	67 peers AS260 AS3257 AS5580	v4 v6
CONNECT-AS AS42323	RU	2024-09-01 1y 8mo	2026-05-14	4.1k	65 peers AS209 AS999 AS2914 AS3257 AS3320 AS3549 AS4128 AS5392 AS5580 AS6730 AS6830 AS7018 AS8582 AS12637 AS12956 AS14907 AS15562 AS16276 AS28329 AS34927 AS49544 AS52468 AS52873 AS53828 AS57821 AS142289 AS262462 AS263541 AS264409 AS266213 AS398465	v4 v6
TSV-AS AS42408	RU	2024-09-01 1y 8mo	2026-05-14	2k	67 peers AS209 AS999 AS2914 AS3257 AS3320 AS3549 AS4128 AS5392 AS5580 AS6730 AS6830 AS7018 AS8582 AS12637 AS12956 AS14907 AS15562 AS16276 AS28329 AS34927 AS41811 AS48112 AS49544 AS52468 AS52873 AS53828 AS57821 AS142289 AS151704 AS262462 AS263541 AS266213 AS398465	v4 v6
NVTC-AS AS47530	RU	2024-09-01 1y 8mo	2026-05-14	—	90 peers AS209 AS260 AS513 AS701 AS999 AS1213 AS1273 AS1351 AS2500 AS2914 AS3130 AS3170 AS3257 AS3320 AS3491 AS4128 AS4775 AS5580 AS6082 AS6424 AS6730 AS6762 AS6830 AS6894 AS7018 AS7594 AS7713 AS8582 AS12637 AS12956 AS14537 AS15562 AS16276 AS17350 AS19151 AS24516 AS27678 AS27986 AS29680 AS37271 AS37497 AS38008 AS45437 AS46997 AS47147 AS48112 AS49544 AS50300 AS52873 AS63956 AS64112 AS136557 AS197580 AS199524 AS206271 AS216285 AS262427 AS262462 AS263009 AS266213 AS271253 AS328206 AS328964 AS398465	v4 v6
OEZ-AS AS51256	RU	2024-09-01 1y 8mo	2026-05-14	256	67 peers AS209 AS260 AS2914 AS3257 AS3320 AS3549 AS4128 AS5392 AS5580 AS6730 AS6830 AS7018 AS12637 AS12956 AS14907 AS15562 AS16276 AS28329 AS34927 AS48112 AS49544 AS52468 AS52873 AS53828 AS142289 AS151704 AS262462 AS263541 AS264409 AS266213	v4 v6
BA-NSK-AS AS198021	RU	2024-09-01 1y 8mo	2026-05-14	256	67 peers AS209 AS260 AS2914 AS3257 AS3320 AS3549 AS4128 AS5392 AS5580 AS6730 AS6830 AS7018 AS12637 AS12956 AS14907 AS15562 AS16276 AS28329 AS34927 AS48112 AS49544 AS52468 AS52873 AS53828 AS142289 AS151704 AS262462 AS263541 AS264409 AS266213	v4 v6

Network Size

IPv4 and IPv6 prefixes originated over time

v4 prefixes

232k

v4 addresses

v6 prefixes

v6 /32s

Downstream Customers Over Time

Count of distinct downstream customers per snapshot date

Peering Links Over Time

Count of unclassified adjacencies per snapshot date

Event Log

All New Transit Lost Transit Possible Trial Renewal Approaching

2026-04-22

Lost Transit

ASSTRATEGIYA AS8279 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 597d

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2026-02-14

Lost Transit

ASSTRATEGIYA AS8279 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 530d

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2026-01-28

Lost Transit

AVANTEL-AS AS25549 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 513d

⇄

2026-01-23

Lost Transit

TSV-AS AS42408 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 508d

⇄

2026-01-17

Lost Transit

TSV-AS AS42408 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 502d

⇄

2025-11-22

Lost Transit

ASRUSHOLOD AS58008 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 446d

⇄

2025-10-08

Lost Transit

TOLMACHEVO-AS AS56810 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 401d

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2025-08-23

Lost Transit

ASRUSHOLOD AS58008 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 355d

⇄

2025-06-17

Lost Transit

ASRUSHOLOD AS58008 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 288d

⇄

2025-05-15

Lost Transit

TOLMACHEVO-AS AS56810 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 255d

⇄

2025-03-18

Lost Transit

DGS-AS AS31314 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 197d

⇄

2025-01-14

Lost Transit

TOLMACHEVO-AS AS56810 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 134d

⇄

2024-12-29

Lost Transit

TOLMACHEVO-AS AS56810 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 118d

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2024-12-18

Lost Transit

TOLMACHEVO-AS AS56810 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 107d

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2024-12-14

Lost Transit

TOLMACHEVO-AS AS56810 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 103d

⇄

2024-11-30

Lost Transit

ASRUSHOLOD AS58008 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 89d

⇄

2024-11-16

Lost Transit

RUNTIME-AS AS57655 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 75d

⇄

2024-11-06

Lost Transit

RUNTIME-AS AS57655 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 65d

⇄

2024-11-06

Lost Transit

TOLMACHEVO-AS AS56810 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 65d

⇄

2024-10-23

Lost Transit

RUNTIME-AS AS57655 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 51d

⇄

2024-09-19

Lost Transit

RUNTIME-AS AS57655 → lost provider ZSTTKAS AS21127

Confidence: 85% Duration: 17d

⇄

Renewal Calendar

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

This data is available to subscribers.