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AS15221 · US · ARIN
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3
Upstream providers
5
Downstream customers
26k
v4 addresses
1
v6 /32s

Provider History

Active Possible trial (<90d) Historical

Current Providers

Addr family: All IPv4 IPv6
Provider First Seen Last Seen Peers Confidence AF
AS-D102-COS-1
AS33302
 2024-09-01
1y 8mo
 2026-05-14
204 peers
AS209 AS1299 AS2914 AS3214 AS3257 AS3491 AS3549 AS4128 AS5580 AS6453 AS6461 AS6762 AS6830 AS7018 AS8582 AS12956 AS15562 AS15692 AS16276 AS17660 AS25160 AS27986 AS32590 AS47147 AS50877 AS132884 AS199524 AS216285 AS398465
v4 v6
AS6461
AS6461
 2024-09-01
1y 8mo
 2026-05-14
197 peers
AS2914 AS3130 AS3257 AS3320 AS3399 AS3491 AS4128 AS4775 AS5580 AS6082 AS6453 AS6762 AS6830 AS7018 AS7768 AS8582 AS12956 AS15562 AS15692 AS16276 AS17660 AS27986 AS28634 AS32590 AS35710 AS38008 AS44901 AS46997 AS48112 AS50877 AS52873 AS55720 AS56987 AS57866 AS132884 AS151704 AS197580 AS199524 AS216285 AS262462 AS269180 AS328840 AS328964 AS398465
v4 v6
AS7029
AS7029
 2025-12-11
5mo
 2026-05-14
100 peers
AS174 AS209 AS917 AS1351 AS2914 AS3130 AS3257 AS3320 AS3399 AS3491 AS3549 AS4128 AS5392 AS5580 AS6082 AS6424 AS6730 AS6762 AS6830 AS6894 AS7018 AS7594 AS8582 AS12637 AS12956 AS13786 AS13830 AS14840 AS14907 AS15562 AS16276 AS17660 AS20080 AS20912 AS21700 AS23673 AS24516 AS27986 AS28329 AS28624 AS28634 AS29140 AS30950 AS31510 AS32590 AS34927 AS35710 AS38001 AS38008 AS38880 AS39120 AS45437 AS46997 AS48112 AS49434 AS49544 AS49605 AS50300 AS51185 AS52468 AS52873 AS53062 AS53202 AS55720 AS56457 AS57821 AS60602 AS61138 AS61568 AS62167 AS63956 AS64112 AS132825 AS134823 AS136557 AS142289 AS151704 AS197580 AS198150 AS199524 AS200612 AS212271 AS216285 AS262462 AS263009 AS263541 AS264409 AS264479 AS266213 AS267613 AS271253 AS327960 AS328840 AS328964 AS398465
v4 v6

Customers (5)

Addr family: All IPv4 IPv6
Customer Country First Seen Last Seen IPs Peers Confidence AF
AS7832
AS7832
 US 2024-09-01
1y 8mo
 2026-05-14 3.3k
122 peers
AS1299 AS2914 AS3214 AS3257 AS3491 AS3549 AS4128 AS5580 AS6453 AS6461 AS6762 AS7018 AS8582 AS12956 AS15562 AS15692 AS16276 AS17660 AS27986 AS32590 AS47147 AS132884 AS199524 AS398465
v4 v6
AS26399
AS26399
 US 2024-09-01
1y 8mo
 2026-05-14 1k
57 peers
AS209 AS1299 AS3549 AS398465
v4 v6
AS31756
AS31756
 US 2024-09-01
1y 8mo
 2026-05-14 2k
129 peers
AS209 AS1299 AS2914 AS3130 AS3257 AS3320 AS3399 AS3491 AS3549 AS4128 AS4775 AS5580 AS6082 AS6453 AS6762 AS6830 AS7018 AS7768 AS8582 AS12956 AS15562 AS15692 AS16276 AS17660 AS27986 AS28634 AS32590 AS35710 AS38008 AS44901 AS46997 AS48112 AS50877 AS52873 AS55720 AS56987 AS57866 AS132884 AS151704 AS197580 AS199524 AS216285 AS262462 AS269180 AS328840 AS328964 AS398465
v4 v6
AS32142
AS32142
 US 2024-09-01
1y 8mo
 2026-05-14 8.4k
99 peers
AS1299 AS2914 AS3257 AS3491 AS3549 AS4128 AS5580 AS6453 AS6762 AS6830 AS7018 AS8582 AS12956 AS15562 AS15692 AS16276 AS17660 AS27986 AS47147 AS50877 AS132884 AS199524 AS216285 AS398465
v4 v6
AS398996
AS398996
 US 2024-12-29
1y 4mo
 2026-05-14 2k
204 peers
AS1299 AS25160 AS199524 AS398465
v4 v6

Network Size

IPv4 and IPv6 prefixes originated over time

15
v4 prefixes
26k
v4 addresses
1
v6 prefixes
1
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
2026-03-02
New Transit
AS398996 AS398996 → added provider AS15221 AS15221
Confidence: 90%
⇄
2026-02-21
New Transit
AS7832 AS7832 → added provider AS15221 AS15221
Confidence: 90%
⇄
2025-12-12
New Transit
AS15221 AS15221 → added provider AS7029 AS7029
Confidence: 90%
⇄
2025-11-20
Lost Transit
AS7832 AS7832 → lost provider AS15221 AS15221
Confidence: 85% Duration: 444d
⇄
2025-08-30
Lost Transit
AS7832 AS7832 → lost provider AS15221 AS15221
Confidence: 85% Duration: 362d
⇄
2025-07-13
Lost Transit
AS398996 AS398996 → lost provider AS15221 AS15221
Confidence: 85% Duration: 195d
⇄
2025-05-29
Lost Transit
AS398996 AS398996 → lost provider AS15221 AS15221
Confidence: 85% Duration: 150d
⇄
2025-05-29
Lost Transit
AS26399 AS26399 → lost provider AS15221 AS15221
Confidence: 85% Duration: 269d
⇄
2025-04-04
New Transit
AS7832 AS7832 → added provider AS15221 AS15221
Confidence: 90%
⇄
2025-03-01
Lost Transit
AS7832 AS7832 → lost provider AS15221 AS15221
Confidence: 85% Duration: 180d
⇄
2025-01-19
New Transit
AS7832 AS7832 → added provider AS15221 AS15221
Confidence: 90%
⇄
2024-12-30
New Transit
AS398996 AS398996 → added provider AS15221 AS15221
Confidence: 90%
⇄
2024-12-20
Lost Transit
AS7832 AS7832 → lost provider AS15221 AS15221
Confidence: 85% Duration: 109d
⇄
2024-09-02
New Transit
AS32142 AS32142 → added provider AS15221 AS15221
Confidence: 90%
⇄
2024-09-02
New Transit
AS31756 AS31756 → added provider AS15221 AS15221
Confidence: 90%
⇄
2024-09-02
New Transit
AS26399 AS26399 → added provider AS15221 AS15221
Confidence: 90%
⇄
2024-09-02
New Transit
AS15221 AS15221 → added provider AS-D102-COS-1 AS33302
Confidence: 90%
⇄
2024-09-02
New Transit
AS15221 AS15221 → added provider AS6461 AS6461
Confidence: 90%
⇄
2024-09-02
New Transit
AS7832 AS7832 → added provider AS15221 AS15221
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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