AS37900 · JP · APNIC
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4
Upstream providers
0
Downstream customers
1k
v4 addresses
<0.1
v6 /32s

Provider History

Active Possible trial (<90d) Historical

Current Providers

Provider First Seen Last Seen Peers Confidence
AS4713
AS4713
 2025-01-01
1y 3mo
 2026-04-23
236 peers
AS174 AS209 AS513 AS835 AS917 AS924 AS955 AS999 AS1031 AS1103 AS1213 AS1221 AS1299 AS1351 AS1828 AS2152 AS3130 AS3212 AS3214 AS3216 AS3257 AS3320 AS3399 AS3491 AS3549 AS3701 AS4181 AS4608 AS4775 AS5392 AS5394 AS5413 AS5580 AS6360 AS6423 AS6424 AS6453 AS6461 AS6667 AS6730 AS6762 AS6830 AS6881 AS6939 AS7018 AS7594 AS8218 AS8220 AS8426 AS8529 AS8660 AS8888 AS9268 AS11039 AS11399 AS11845 AS12307 AS12350 AS12956 AS12969 AS13030 AS13058 AS13237 AS13781 AS13830 AS14041 AS14315 AS14840 AS14907 AS15397 AS15547 AS15605 AS16260 AS16276 AS16347 AS16552 AS17350 AS19529 AS19754 AS20205 AS20514 AS20764 AS20811 AS20912 AS20932 AS21232 AS21282 AS21700 AS22296 AS22652 AS23367 AS24516 AS24961 AS25091 AS27678 AS27986 AS28329 AS28634 AS28824 AS28917 AS29222 AS29504 AS29691 AS30844 AS30950 AS31027 AS31510 AS32590 AS33185 AS33874 AS34177 AS34288 AS34428 AS34800 AS34854 AS34927 AS35008 AS35426 AS35598 AS35710 AS36924 AS37105 AS37239 AS37468 AS37497 AS37697 AS38008 AS38016 AS39120 AS39122 AS39351 AS39642 AS40387 AS40864 AS41073 AS41095 AS41722 AS41811 AS42473 AS42541 AS43733 AS44097 AS44901 AS45437 AS46997 AS47147 AS48070 AS48112 AS48237 AS48362 AS48919 AS49028 AS49432 AS49434 AS49544 AS49605 AS49788 AS50304 AS50628 AS50629 AS51185 AS51519 AS52320 AS52468 AS52873 AS53062 AS55222 AS55720 AS56457 AS56987 AS57050 AS57381 AS57630 AS57821 AS58057 AS58511 AS59414 AS59891 AS60539 AS60924 AS61138 AS61218 AS61573 AS61832 AS62167 AS63927 AS63956 AS64112 AS64475 AS132847 AS134823 AS148968 AS150000 AS151326 AS151704 AS197580 AS198150 AS199518 AS199524 AS199938 AS200612 AS202365 AS205112 AS205206 AS206356 AS209650 AS210937 AS212271 AS212317 AS216285 AS262427 AS262462 AS263009 AS263152 AS263237 AS263541 AS264409 AS265721 AS266213 AS271253 AS272403 AS327960 AS327983 AS328840 AS394414 AS397131 AS398465
AS2516
AS2516
 2025-01-01
1y 3mo
 2026-04-23
40 peers
AS209 AS260 AS3491 AS6461 AS7018 AS8582 AS12956 AS16260 AS17350 AS31554 AS49544 AS52873 AS262462 AS271253
AS2914
AS2914
 2025-01-01
1y 3mo
 2026-04-23
240 peers
AS209 AS260 AS513 AS701 AS917 AS999 AS1031 AS1140 AS1213 AS1221 AS1273 AS1299 AS1351 AS1403 AS1828 AS3130 AS3257 AS3320 AS3399 AS3491 AS3701 AS4181 AS4775 AS5394 AS5413 AS5580 AS6424 AS6453 AS6461 AS6667 AS6730 AS6762 AS6830 AS6894 AS7018 AS7594 AS7713 AS7768 AS8218 AS8220 AS8426 AS8529 AS8582 AS8888 AS11845 AS12956 AS13781 AS14315 AS14840 AS14907 AS15605 AS16260 AS16276 AS16552 AS17350 AS17639 AS19529 AS20764 AS20811 AS21282 AS21700 AS22652 AS23367 AS24516 AS24961 AS25091 AS27678 AS28824 AS29222 AS29680 AS30844 AS30950 AS31027 AS31122 AS31510 AS31554 AS32590 AS33874 AS34288 AS34428 AS34927 AS35008 AS35426 AS35710 AS36924 AS37105 AS37468 AS37497 AS38008 AS39122 AS39351 AS39642 AS41073 AS41722 AS42473 AS42541 AS44097 AS44901 AS45437 AS45701 AS46997 AS47147 AS47957 AS48070 AS48112 AS48362 AS49028 AS49432 AS49544 AS49605 AS49788 AS50304 AS50628 AS50629 AS50673 AS51185 AS51873 AS52320 AS52468 AS52873 AS53062 AS56457 AS56987 AS57050 AS57111 AS57630 AS58057 AS58511 AS59790 AS60924 AS61573 AS63927 AS63956 AS64112 AS64475 AS132337 AS136557 AS151704 AS197580 AS199524 AS199938 AS202365 AS206271 AS206356 AS209650 AS209718 AS210937 AS212271 AS212317 AS216285 AS262427 AS262462 AS263009 AS263152 AS264409 AS265721 AS266213 AS271253 AS272403 AS327960 AS328206 AS328840 AS328964 AS398465
ULTINA
AS17676
 2025-01-01
1y 3mo
 2026-04-23
70 peers
AS174 AS209 AS2152 AS3130 AS3320 AS3549 AS3741 AS5392 AS6424 AS6730 AS6762 AS6830 AS7018 AS9002 AS12350 AS12956 AS13830 AS14537 AS14840 AS27986 AS28329 AS29504 AS31510 AS32590 AS34177 AS34549 AS34927 AS35710 AS37239 AS37468 AS37697 AS49434 AS49544 AS49605 AS51185 AS52075 AS52468 AS52873 AS53062 AS56457 AS58057 AS59919 AS61138 AS61832 AS63956 AS64112 AS64475 AS198150 AS199524 AS206499 AS216285 AS262462 AS263009 AS263541 AS266213 AS271253 AS327960 AS328840

Customers (0)

No customers in current snapshot.

Network Size

IPv4 and IPv6 prefixes originated over time

4
v4 prefixes
1k
v4 addresses
3
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
2025-05-02
Lost Transit
AS37900 AS37900 → dropped provider ASN-TELSTRA-GLOBAL AS4637
Confidence: 85% Duration: 120d
⇄
2025-04-29
Possible Trial
AS37900 AS37900 → possible trial with AS2497 AS2497
Confidence: 60% Duration: 28d
⇄
2025-04-02
Lost Transit
AS37900 AS37900 → dropped provider AS2497 AS2497
Confidence: 85% Duration: 90d
⇄
2025-04-02
New Transit
AS37900 AS37900 → added provider ULTINA AS17676
Confidence: 90%
⇄
2025-04-02
New Transit
AS37900 AS37900 → added provider AS4713 AS4713
Confidence: 90%
⇄
2025-04-02
New Transit
AS37900 AS37900 → added provider ASN-TELSTRA-GLOBAL AS4637
Confidence: 90%
⇄
2025-04-02
New Transit
AS37900 AS37900 → added provider AS2914 AS2914
Confidence: 90%
⇄
2025-04-02
New Transit
AS37900 AS37900 → added provider AS2516 AS2516
Confidence: 90%
⇄
2025-01-02
New Transit
AS37900 AS37900 → added provider ULTINA AS17676
Confidence: 90%
⇄
2025-01-02
New Transit
AS37900 AS37900 → added provider AS4713 AS4713
Confidence: 90%
⇄
2025-01-02
New Transit
AS37900 AS37900 → added provider ASN-TELSTRA-GLOBAL AS4637
Confidence: 90%
⇄
2025-01-02
New Transit
AS37900 AS37900 → added provider AS2914 AS2914
Confidence: 90%
⇄
2025-01-02
New Transit
AS37900 AS37900 → added provider AS2516 AS2516
Confidence: 90%
⇄
2025-01-02
New Transit
AS37900 AS37900 → added provider AS2497 AS2497
Confidence: 90%
⇄

Renewal Calendar

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

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