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AS55391 · JP · APNIC
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2
Upstream providers
4
Downstream customers
68k
v4 addresses
17
v6 /32s

Provider History

Active Possible trial (<90d) Historical

Current Providers

Addr family: All IPv4 IPv6
Provider First Seen Last Seen Peers Confidence AF
AS2914
AS2914
 2024-09-01
1y 9mo
 2026-06-09
107 peers
AS209 AS701 AS999 AS1000 AS3257 AS3320 AS3491 AS5580 AS6453 AS6461 AS6762 AS6830 AS7018 AS7768 AS8529 AS8582 AS12956 AS13781 AS15605 AS16276 AS17350 AS19529 AS22296 AS24961 AS25091 AS29222 AS31554 AS32590 AS35710 AS47147 AS49544 AS49605 AS50877 AS51185 AS51873 AS52468 AS52873 AS53062 AS56457 AS57821 AS199524 AS212317 AS216285 AS262427 AS262462 AS263152 AS264409 AS271253 AS328964 AS398465
v4 v6
AS2497
AS2497
 2024-09-01
1y 9mo
 2026-06-09
27 peers
AS209 AS260 AS701 AS999 AS3257 AS3549 AS5580 AS6204 AS6762 AS8582 AS12956 AS49605 AS51185 AS52468 AS52873 AS56457 AS199524 AS206271 AS216285 AS271253 AS398465
v4 v6

Customers (4)

Addr family: All IPv4 IPv6
Customer Country First Seen Last Seen IPs Peers Confidence AF
AS7521
AS7521
 JP 2024-09-01
1y 9mo
 2026-06-09 4.9k
96 peers
AS209 AS701 AS999 AS1000 AS3257 AS3320 AS3491 AS3549 AS5580 AS6453 AS6461 AS6762 AS6830 AS7018 AS7768 AS8529 AS8582 AS12956 AS13781 AS15605 AS16276 AS17350 AS19529 AS22296 AS24961 AS25091 AS29222 AS31554 AS32590 AS35710 AS47147 AS49544 AS49605 AS51185 AS51873 AS52468 AS52873 AS53062 AS56457 AS57821 AS199524 AS212317 AS216285 AS262462 AS263152 AS264409 AS271253 AS328964 AS398465
v4 v6
AKAMAI-ASN1
AS20940
 NL 2024-09-01
1y 9mo
 2026-06-09 256
98 peers
AS199524
v4 v6
MF-FUKUOKA
AS131976
 JP 2024-09-01
1y 9mo
 2026-06-09 256
26 peers
AS209 AS260 AS701 AS999 AS3257 AS3549 AS5580 AS6204 AS6762 AS8582 AS12956 AS49605 AS51185 AS52468 AS52873 AS56457 AS199524 AS206271 AS216285 AS271253 AS398465
v4 v6
MF-SENDAI-JPNIC-JP-20221005
AS146984
 JP 2024-09-01
1y 9mo
 2026-06-09 256
62 peers
AS209 AS260 AS701 AS999 AS3257 AS3549 AS5580 AS6204 AS6762 AS8582 AS12956 AS49605 AS51185 AS52468 AS52873 AS56457 AS199524 AS206271 AS216285 AS271253 AS398465
v4 v6

Network Size

IPv4 and IPv6 prefixes originated over time

5
v4 prefixes
68k
v4 addresses
2
v6 prefixes
17
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
2024-09-02
New Transit
MF-SENDAI-JPNIC-JP-20221005 AS146984 → added provider AS55391 AS55391
Confidence: 90%
⇄
2024-09-02
New Transit
MF-FUKUOKA AS131976 → added provider AS55391 AS55391
Confidence: 90%
⇄
2024-09-02
New Transit
AS55391 AS55391 → added provider AS2914 AS2914
Confidence: 90%
⇄
2024-09-02
New Transit
AS55391 AS55391 → added provider AS2497 AS2497
Confidence: 90%
⇄
2024-09-02
New Transit
AKAMAI-ASN1 AS20940 → added provider AS55391 AS55391
Confidence: 90%
⇄
2024-09-02
New Transit
AS7521 AS7521 → added provider AS55391 AS55391
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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