AS16246

AS16246 · NEJ.cz s.r.o · CZ · RIPENCC

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Upstream providers

Downstream customers

133k

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
O2-CZECH-REPUBLIC AS5610	2024-09-01 1y 9mo	2026-06-09	309 peers AS209 AS260 AS701 AS999 AS1031 AS1103 AS1273 AS2500 AS2914 AS3257 AS3320 AS3491 AS4128 AS4775 AS5580 AS6204 AS6453 AS6730 AS6762 AS6830 AS7018 AS7768 AS8220 AS8426 AS8582 AS12956 AS14315 AS14537 AS15562 AS16276 AS16552 AS17350 AS17660 AS31554 AS32590 AS35280 AS37497 AS38001 AS47147 AS47957 AS49544 AS49605 AS52075 AS52873 AS53062 AS64475 AS150369 AS197580 AS199524 AS206271 AS215230 AS216285 AS262462 AS264479 AS266213 AS267613 AS271253 AS328206 AS328840 AS398465		v4 v6

Customers (13)

Addr family: All IPv4 IPv6

Customer	Country	First Seen	Last Seen	IPs	Peers	AF
ITSELF AS12570	CZ	2024-09-01 1y 9mo	2026-06-09	54k	309 peers AS174 AS209 AS260 AS293 AS701 AS917 AS999 AS1000 AS1031 AS1103 AS1213 AS1273 AS1351 AS2152 AS2500 AS2734 AS2914 AS3130 AS3170 AS3257 AS3303 AS3320 AS3399 AS3491 AS3549 AS3701 AS3741 AS4128 AS4641 AS4775 AS5392 AS5580 AS6057 AS6082 AS6204 AS6424 AS6453 AS6461 AS6730 AS6762 AS6830 AS6894 AS7018 AS7594 AS7768 AS8220 AS8426 AS8582 AS8888 AS11039 AS11845 AS12350 AS12779 AS12956 AS13786 AS13830 AS14315 AS14537 AS14840 AS15547 AS15562 AS15605 AS16276 AS16552 AS17350 AS17639 AS17660 AS19151 AS19529 AS20080 AS20912 AS21700 AS23673 AS24482 AS24516 AS25152 AS28329 AS28624 AS28917 AS29140 AS30844 AS31510 AS31554 AS32590 AS32653 AS34177 AS34927 AS35280 AS35710 AS37239 AS37271 AS37468 AS37497 AS37697 AS38001 AS38008 AS38880 AS39120 AS40864 AS41095 AS41811 AS44097 AS44901 AS45437 AS46997 AS47147 AS47957 AS48070 AS49434 AS49544 AS49605 AS50300 AS51185 AS52075 AS52468 AS52873 AS53062 AS53202 AS53828 AS55720 AS56457 AS57821 AS61049 AS61138 AS61568 AS61832 AS62167 AS63956 AS64112 AS64475 AS132825 AS132884 AS134823 AS136557 AS137409 AS142271 AS142289 AS150369 AS151326 AS151704 AS197580 AS198150 AS198385 AS199524 AS200612 AS206271 AS207841 AS212271 AS215230 AS216285 AS262427 AS262462 AS263009 AS263152 AS263541 AS264409 AS264479 AS264845 AS266213 AS267613 AS268976 AS271253 AS327804 AS327960 AS328206 AS328840 AS328964 AS397131 AS398465	v4 v6
CentroNetAS AS29321	CZ	2024-09-01 1y 9mo	2026-06-09	15k	150 peers AS209 AS260 AS701 AS999 AS1031 AS1103 AS1273 AS2500 AS2914 AS3257 AS3320 AS3491 AS4128 AS4775 AS5580 AS6204 AS6453 AS6730 AS6762 AS6830 AS7018 AS7768 AS8220 AS8426 AS8582 AS12956 AS14315 AS14537 AS15562 AS16276 AS16552 AS17350 AS17660 AS31554 AS32590 AS35280 AS37497 AS38001 AS47147 AS47957 AS49544 AS49605 AS52075 AS52468 AS52873 AS53062 AS64475 AS150369 AS197580 AS199524 AS206271 AS215230 AS216285 AS262462 AS264409 AS264479 AS266213 AS267613 AS271253 AS328206 AS328840 AS398465	v4 v6
ICTSUPPORT AS39736	CZ	2024-09-01 1y 9mo	2026-06-09	1k	92 peers AS701 AS999 AS1031 AS1273 AS2500 AS2914 AS3320 AS3491 AS4128 AS4775 AS6453 AS6730 AS6762 AS6830 AS7018 AS7768 AS8220 AS12956 AS14315 AS14537 AS16276 AS16552 AS17350 AS32590 AS35280 AS37105 AS37497 AS47147 AS49544 AS49605 AS52468 AS52873 AS197580 AS199524 AS206271 AS215230 AS216285 AS262462 AS264479 AS267613 AS271253 AS328206 AS328840	v4 v6
NEJTV-AS AS41046	CZ	2024-09-01 1y 9mo	2026-06-09	53k	149 peers AS209 AS999 AS1031 AS1103 AS2152 AS2500 AS2914 AS3257 AS3320 AS3491 AS3549 AS4128 AS4641 AS4775 AS5392 AS5580 AS6082 AS6453 AS6730 AS6762 AS6830 AS7018 AS7768 AS8220 AS8426 AS8582 AS12956 AS15562 AS16276 AS16552 AS17350 AS17660 AS20080 AS23673 AS28329 AS28917 AS29140 AS31554 AS32590 AS34927 AS35280 AS35710 AS38001 AS38880 AS41095 AS41811 AS49434 AS49544 AS49605 AS51185 AS52075 AS52468 AS52873 AS53828 AS55720 AS56457 AS57821 AS64475 AS132884 AS134823 AS142289 AS150369 AS151704 AS197580 AS199524 AS216285 AS262462 AS263152 AS263541 AS264409 AS264479 AS266213 AS267613	v4 v6
MCnet-AS AS44070	CZ	2024-09-01 1y 9mo	2026-06-09	4.1k	148 peers AS209 AS999 AS1031 AS1103 AS2152 AS2500 AS2914 AS3257 AS3320 AS3491 AS3549 AS4128 AS4641 AS4775 AS5392 AS5580 AS6082 AS6453 AS6730 AS6762 AS6830 AS7018 AS7768 AS8220 AS8426 AS8582 AS12956 AS15562 AS16276 AS16552 AS17350 AS17660 AS20080 AS23673 AS28329 AS28917 AS29140 AS31554 AS32590 AS34927 AS35280 AS35710 AS38001 AS38880 AS41095 AS41811 AS49434 AS49544 AS49605 AS51185 AS52075 AS52468 AS52873 AS53828 AS55720 AS56457 AS57821 AS64475 AS132884 AS134823 AS142289 AS150369 AS151704 AS197580 AS199524 AS216285 AS262462 AS263152 AS263541 AS264409 AS264479 AS266213 AS267613	v4 v6
INTERNETPB-AS AS49767	CZ	2024-09-01 1y 9mo	2026-06-09	5.1k	148 peers AS209 AS999 AS1031 AS1103 AS2152 AS2500 AS2914 AS3257 AS3320 AS3491 AS3549 AS4128 AS4641 AS4775 AS5392 AS5580 AS6082 AS6453 AS6730 AS6762 AS6830 AS7018 AS7768 AS8220 AS8426 AS8582 AS12956 AS15562 AS16276 AS16552 AS17350 AS17660 AS20080 AS23673 AS28329 AS28917 AS29140 AS31554 AS32590 AS34927 AS35280 AS35710 AS38001 AS38880 AS41095 AS41811 AS49434 AS49544 AS49605 AS51185 AS52075 AS52468 AS52873 AS53828 AS55720 AS56457 AS57821 AS64475 AS132884 AS134823 AS142289 AS150369 AS151704 AS197580 AS199524 AS216285 AS262462 AS263152 AS263541 AS264409 AS264479 AS266213 AS267613	v4 v6
Master_IT_Technologies AS62178	CZ	2024-09-01 1y 9mo	2026-06-09	3.1k	134 peers AS917 AS999 AS1000 AS1031 AS1103 AS1213 AS2500 AS2914 AS3130 AS3257 AS3320 AS3399 AS3491 AS4128 AS4608 AS4641 AS4775 AS5580 AS6082 AS6424 AS6453 AS6730 AS6762 AS6830 AS7018 AS7768 AS8220 AS8426 AS8582 AS12956 AS14315 AS14537 AS16276 AS16552 AS17350 AS17660 AS19151 AS20080 AS20912 AS21700 AS23673 AS24516 AS28329 AS29140 AS30844 AS32590 AS32653 AS35280 AS35710 AS37271 AS38001 AS38008 AS41811 AS44901 AS45437 AS46997 AS48070 AS49434 AS49544 AS49605 AS50300 AS51185 AS52075 AS52468 AS52873 AS53828 AS55720 AS56457 AS57821 AS61049 AS61568 AS63956 AS64475 AS132884 AS133950 AS134823 AS137409 AS140627 AS142289 AS150369 AS151326 AS151704 AS197580 AS199524 AS200612 AS207841 AS216285 AS262462 AS263009 AS263541 AS264409 AS264479 AS267613 AS271253 AS327804 AS328840	v4 v6
Hnojnik AS202657	CZ	2024-09-01 1y 9mo	2026-06-09	1k	148 peers AS209 AS999 AS1031 AS1103 AS2152 AS2500 AS2914 AS3257 AS3320 AS3491 AS3549 AS4128 AS4641 AS4775 AS5392 AS5580 AS6082 AS6453 AS6730 AS6762 AS6830 AS7018 AS7768 AS8220 AS8426 AS8582 AS12956 AS15562 AS16276 AS16552 AS17350 AS17660 AS20080 AS23673 AS28329 AS28917 AS29140 AS31554 AS32590 AS34927 AS35280 AS35710 AS38001 AS38880 AS41095 AS41811 AS49434 AS49544 AS49605 AS51185 AS52075 AS52468 AS52873 AS53828 AS55720 AS56457 AS57821 AS64475 AS132884 AS134823 AS142289 AS150369 AS151704 AS197580 AS199524 AS216285 AS262462 AS263152 AS263541 AS264409 AS264479 AS266213 AS267613	v4 v6
POSITION AS207015	CZ	2024-09-01 1y 9mo	2026-06-09	1k	112 peers AS209 AS999 AS1031 AS2152 AS2500 AS2914 AS3320 AS3491 AS3549 AS4128 AS4608 AS4641 AS4775 AS5392 AS6082 AS6453 AS6730 AS6762 AS6830 AS7018 AS8220 AS12956 AS16276 AS16552 AS17350 AS17660 AS20080 AS23673 AS28329 AS31554 AS32590 AS34927 AS35280 AS37697 AS38001 AS41811 AS48112 AS49434 AS49544 AS49605 AS51185 AS52468 AS52873 AS53828 AS55720 AS56457 AS59414 AS61832 AS132884 AS134823 AS140627 AS142289 AS151704 AS197580 AS199524 AS216285 AS262462 AS263152 AS263541 AS264409 AS264479 AS266213 AS267613	v4 v6
NETBOX-AS AS31246	CZ	2024-11-09 1y 7mo	2026-06-09	67k	149 peers AS209 AS999 AS1031 AS1103 AS2152 AS2500 AS2914 AS3257 AS3320 AS3491 AS3549 AS4128 AS4641 AS4775 AS5392 AS5580 AS6082 AS6453 AS6730 AS6762 AS6830 AS7018 AS7768 AS8220 AS8426 AS8582 AS12956 AS15562 AS16276 AS16552 AS17350 AS17660 AS20080 AS23673 AS28329 AS28917 AS29140 AS31554 AS32590 AS34927 AS35280 AS35710 AS38001 AS38880 AS41095 AS41811 AS49434 AS49544 AS49605 AS51185 AS52075 AS52468 AS52873 AS53828 AS55720 AS56457 AS57821 AS64475 AS132884 AS134823 AS142289 AS150369 AS151704 AS197580 AS199524 AS216285 AS262462 AS263152 AS263541 AS264409 AS264479 AS266213 AS267613	v4 v6
FTCZ-NET AS212315	CZ	2025-04-05 1y 2mo	2026-06-09	768	148 peers AS209 AS999 AS1031 AS1103 AS2152 AS2500 AS2914 AS3257 AS3320 AS3491 AS3549 AS4128 AS4641 AS4775 AS5392 AS5580 AS6082 AS6453 AS6730 AS6762 AS6830 AS7018 AS7768 AS8220 AS8426 AS8582 AS12956 AS14315 AS15562 AS16276 AS16552 AS17350 AS17660 AS20080 AS23673 AS28329 AS28917 AS29140 AS31554 AS32590 AS34927 AS35280 AS35710 AS37697 AS38001 AS38880 AS41095 AS41811 AS49434 AS49544 AS49605 AS51185 AS52075 AS52468 AS52873 AS53828 AS55720 AS56457 AS57821 AS64475 AS132884 AS134823 AS142289 AS150369 AS151704 AS197580 AS199524 AS216285 AS262462 AS263152 AS263541 AS264409 AS264479 AS266213 AS267613	v4 v6
M-NET AS197197	CZ	2025-06-13 1y	2026-06-09	16k	129 peers AS209 AS999 AS1031 AS1103 AS2152 AS2500 AS2914 AS3257 AS3320 AS3491 AS3549 AS4128 AS4641 AS4775 AS5392 AS5580 AS6082 AS6453 AS6730 AS6762 AS6830 AS7018 AS7768 AS8220 AS8426 AS8455 AS8582 AS12956 AS15562 AS16276 AS16552 AS17350 AS17660 AS20080 AS23673 AS28329 AS28917 AS29140 AS31554 AS32590 AS34927 AS35280 AS35710 AS38001 AS38880 AS41095 AS41811 AS49434 AS49544 AS49605 AS51088 AS51185 AS52075 AS52468 AS52873 AS53828 AS55720 AS56457 AS57821 AS64475 AS132884 AS134823 AS142289 AS150369 AS151704 AS197580 AS199524 AS216285 AS262462 AS263152 AS263541 AS264409 AS264479 AS266213 AS267613	v4 v6

Network Size

IPv4 and IPv6 prefixes originated over time

v4 prefixes

133k

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

2026-04-09

Lost Transit

TRESTEL-CZ-ASN AS41453 → lost provider AS16246 AS16246

Confidence: 85% Duration: 584d

⇄

2026-03-16

New Transit

TRESTEL-CZ-ASN AS41453 → added provider AS16246 AS16246

Confidence: 90%

⇄

2026-01-28

Lost Transit

intraweb AS50784 → lost provider AS16246 AS16246

Confidence: 85% Duration: 513d

⇄

2025-12-15

Lost Transit

TRESTEL-CZ-ASN AS41453 → lost provider AS16246 AS16246

Confidence: 85% Duration: 469d

⇄

2025-11-28

New Transit

TRESTEL-CZ-ASN AS41453 → added provider AS16246 AS16246

Confidence: 90%

⇄

2025-07-27

Lost Transit

TRESTEL-CZ-ASN AS41453 → lost provider AS16246 AS16246

Confidence: 85% Duration: 328d

⇄

2025-07-22

New Transit

TRESTEL-CZ-ASN AS41453 → added provider AS16246 AS16246

Confidence: 90%

⇄

2025-07-20

New Transit

ICTSUPPORT AS39736 → added provider AS16246 AS16246

Confidence: 90%

⇄

2025-07-10

Lost Transit

TRESTEL-CZ-ASN AS41453 → lost provider AS16246 AS16246

Confidence: 85% Duration: 311d

⇄

2025-06-16

New Transit

TRESTEL-CZ-ASN AS41453 → added provider AS16246 AS16246

Confidence: 90%

⇄

2025-06-14

New Transit

M-NET AS197197 → added provider AS16246 AS16246

Confidence: 90%

⇄

2025-04-06

New Transit

FTCZ-NET AS212315 → added provider AS16246 AS16246

Confidence: 90%

⇄

2024-12-07

Lost Transit

TNETCZ-AS AS206270 → lost provider AS16246 AS16246

Confidence: 85% Duration: 96d

⇄

2024-11-30

Lost Transit

AS16246 AS16246 → lost provider SuperNetwork AS39392

Confidence: 85% Duration: 89d

⇄

2024-11-27

Lost Transit

TRESTEL-CZ-ASN AS41453 → lost provider AS16246 AS16246

Confidence: 85% Duration: 86d

⇄

2024-11-27

Lost Transit

ICTSUPPORT AS39736 → lost provider AS16246 AS16246

Confidence: 85% Duration: 86d

⇄

2024-11-10

New Transit

NETBOX-AS AS31246 → added provider AS16246 AS16246

Confidence: 90%

⇄

2024-10-11

Possible Trial

ACVYSKOV-AS AS48364 → possible trial with AS16246 AS16246

Confidence: 60%

⇄

2024-10-04

Lost Transit

ACVYSKOV-AS AS48364 → lost provider AS16246 AS16246

Confidence: 85% Duration: 32d

⇄

2024-09-02

New Transit

POSITION AS207015 → added provider AS16246 AS16246

Confidence: 90%

⇄

2024-09-02

New Transit

TNETCZ-AS AS206270 → added provider AS16246 AS16246

Confidence: 90%

⇄

2024-09-02

New Transit

Hnojnik AS202657 → added provider AS16246 AS16246

Confidence: 90%

⇄

2024-09-02

New Transit

Master_IT_Technologies AS62178 → added provider AS16246 AS16246

Confidence: 90%

⇄

2024-09-02

New Transit

intraweb AS50784 → added provider AS16246 AS16246

Confidence: 90%

⇄

2024-09-02

New Transit

INTERNETPB-AS AS49767 → added provider AS16246 AS16246

Confidence: 90%

⇄

2024-09-02

New Transit

ACVYSKOV-AS AS48364 → added provider AS16246 AS16246

Confidence: 90%

⇄

2024-09-02

New Transit

RIOMEDIA AS47681 → added provider AS16246 AS16246

Confidence: 90%

⇄

2024-09-02

New Transit

MCnet-AS AS44070 → added provider AS16246 AS16246

Confidence: 90%

⇄

2024-09-02

New Transit

TRESTEL-CZ-ASN AS41453 → added provider AS16246 AS16246

Confidence: 90%

⇄

2024-09-02

New Transit

NEJTV-AS AS41046 → added provider AS16246 AS16246

Confidence: 90%

⇄

2024-09-02

New Transit

ICTSUPPORT AS39736 → added provider AS16246 AS16246

Confidence: 90%

⇄

2024-09-02

New Transit

CentroNetAS AS29321 → added provider AS16246 AS16246

Confidence: 90%

⇄

2024-09-02

New Transit

AS16246 AS16246 → added provider SuperNetwork AS39392

Confidence: 90%

⇄

2024-09-02

New Transit

AS16246 AS16246 → added provider O2-CZECH-REPUBLIC AS5610

Confidence: 90%

⇄

2024-09-02

New Transit

ITSELF AS12570 → added provider AS16246 AS16246

Confidence: 90%

⇄

Renewal Calendar

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

This data is available to subscribers.