ASN-WELCOMEITALIA

AS21056 · IT · RIPENCC

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3

Upstream providers

3

Downstream customers

89k

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	AF
SEABONE-NET AS6762	2024-09-01 1y 9mo	2026-06-09	265 peers AS917 AS2914 AS3257 AS4641 AS5580 AS6894 AS15562 AS45437 AS49544 AS55720 AS132847 AS142289 AS200612	v4 v6
AS3356 AS3356	2024-09-01 1y 9mo	2026-06-09	76 peers AS209 AS1213 AS2500 AS2914 AS3257 AS3320 AS3491 AS3549 AS4641 AS4775 AS6730 AS6830 AS8220 AS12956 AS14907 AS16276 AS16552 AS19151 AS21700 AS24516 AS32590 AS37239 AS37468 AS37697 AS38001 AS57821 AS61138 AS61832 AS132825 AS136557 AS150369 AS151326 AS212271 AS328840 AS328964	v4 v6
TWELVE99 AS1299	2024-09-01 1y 9mo	2026-06-09	76 peers AS174 AS1031 AS1351 AS3130 AS3320 AS3399 AS3491 AS4128 AS6082 AS6453 AS6830 AS7018 AS12956 AS14315 AS16276 AS17660 AS19151 AS29504 AS44901 AS52468 AS53828 AS64112 AS132884 AS134823 AS151704 AS199524 AS327960 AS328964	v4 v6

Customers (3)

Addr family: All IPv4 IPv6

No customers in current snapshot.

Network Size

IPv4 and IPv6 prefixes originated over time

41

v4 prefixes

89k

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

2026-05-21

Lost Transit

ASN-WELCOMEITALIA AS21056 → lost provider GTT-BACKBONE AS3257

Confidence: 85% Duration: 626d

⇄

2026-03-31

Lost Transit

HOST-SPA AS47242 → lost provider ASN-WELCOMEITALIA AS21056

Confidence: 85% Duration: 575d

⇄

2025-11-26

New Transit

ASN-WELCOMEITALIA AS21056 → added provider AS3356 AS3356

Confidence: 90%

⇄

2025-11-20

Lost Transit

ASN-WELCOMEITALIA AS21056 → lost provider AS3356 AS3356

Confidence: 85% Duration: 444d

⇄

2025-05-21

Lost Transit

ISS AS212394 → lost provider ASN-WELCOMEITALIA AS21056

Confidence: 85% Duration: 196d

⇄

2025-01-23

New Transit

SNAPSYS-AS AS210224 → added provider ASN-WELCOMEITALIA AS21056

Confidence: 90%

⇄

2025-01-17

Lost Transit

SNAPSYS-AS AS210224 → lost provider ASN-WELCOMEITALIA AS21056

Confidence: 85% Duration: 137d

⇄

2024-12-26

New Transit

TELNETSYSTEMS AS198320 → added provider ASN-WELCOMEITALIA AS21056

Confidence: 90%

⇄

2024-12-15

Possible Trial

ISS AS212394 → possible trial with ASN-WELCOMEITALIA AS21056

Confidence: 60%

⇄

2024-11-06

Lost Transit

ISS AS212394 → lost provider ASN-WELCOMEITALIA AS21056

Confidence: 85%

⇄

2024-10-31

New Transit

comacspait AS208775 → added provider ASN-WELCOMEITALIA AS21056

Confidence: 90%

⇄

2024-09-02

New Transit

SNAPSYS-AS AS210224 → added provider ASN-WELCOMEITALIA AS21056

Confidence: 90%

⇄

2024-09-02

New Transit

HOST-SPA AS47242 → added provider ASN-WELCOMEITALIA AS21056

Confidence: 90%

⇄

2024-09-02

New Transit

ASN-WELCOMEITALIA AS21056 → added provider SEABONE-NET AS6762

Confidence: 90%

⇄

2024-09-02

New Transit

ASN-WELCOMEITALIA AS21056 → added provider AS3356 AS3356

Confidence: 90%

⇄

2024-09-02

New Transit

ASN-WELCOMEITALIA AS21056 → added provider GTT-BACKBONE AS3257

Confidence: 90%

⇄

2024-09-02

New Transit

ASN-WELCOMEITALIA AS21056 → added provider TWELVE99 AS1299

Confidence: 90%

⇄

Renewal Calendar

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

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