AS43515 — YOUTUBE Google Ireland Limited

AS43515 announces 77 IPv4 prefixes covering 384,512 addresses and 28 IPv6 prefixes.

About this network

The AS handle YOUTUBE is held by Google Ireland Limited.

What it's used for

• The address space carries Google Cloud and general Google infrastructure, evidenced by netnames GOOGLE-CLOUD and GOOGL-2 and reverse DNS entries pointing to bc.googleusercontent.com.
• With 396,544 IPv4 addresses and 36 IPv6 prefixes announced against only 11 observed neighbours, the network functions as a large-scale content delivery and cloud hosting platform rather than a transit provider.
• Traffic from this AS consists of web services, cloud computing endpoints, and media delivery for Google's global operations.

Notable

• Registrants for the largest prefixes, including 34.112.0.0/15 and 35.211.0.0/16, are listed as Google LLC, which aligns with the announcer Google Ireland Limited as part of the same corporate entity.
• The inventory includes 77 IPv4 prefixes, with the largest being 34.112.0.0/15, indicating a substantial and finely subdivided address estate.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 34.0.48.0/20
• 34.0.128.0/19
• 34.0.232.0/23
• 34.1.16.0/20
• 34.1.68.0/23
• 34.1.70.0/24
• 34.1.72.0/22
• 34.1.98.0/24
• 34.1.100.0/24
• 34.1.109.0/24
• 34.2.32.0/20
• 34.2.64.0/21
• 34.2.76.0/22
• 34.2.80.0/23
• 34.2.113.0/24
• 34.2.118.0/23
• 34.2.120.0/21
• 34.3.16.0/21
• 34.3.28.0/22
• 34.3.48.0/22
• 34.3.76.0/22
• 34.4.16.0/21
• 34.4.28.0/22
• 34.4.32.0/20
• 34.4.102.0/23
• 34.4.192.0/24
• 34.112.0.0/15
• 34.190.240.0/21
• 34.191.0.0/19
• 34.191.40.0/21
• 34.191.56.0/21
• 34.191.64.0/20
• 34.191.80.0/21
• 35.206.6.0/24
• 35.206.9.0/24
• 35.206.32.0/19
• 35.207.0.0/18
• 35.211.0.0/16
• 35.212.0.0/17
• 35.215.64.0/18
• 35.217.64.0/18
• 35.219.128.0/18
• 64.15.113.0/24
• 64.15.114.0/23
• 64.15.117.0/24
• 64.15.118.0/23
• 64.15.123.0/24
• 64.15.124.0/23
• 64.15.127.0/24
• 104.237.160.0/24
• 104.237.162.0/24
• 104.237.165.0/24
• 104.237.174.0/23
• 104.237.176.0/21
• 104.237.184.0/22
• 104.237.191.0/24
• 152.65.222.0/23
• 152.65.224.0/24
• 152.65.235.0/24
• 152.65.236.0/22
• 152.65.240.0/24
• 152.65.242.0/24
• 152.65.254.0/24
• 208.65.152.0/22
• 208.117.224.0/21
• 208.117.233.0/24
• 208.117.234.0/24
• 208.117.236.0/23
• 208.117.239.0/24
• 208.117.242.0/23
• 208.117.244.0/24
• 208.117.246.0/23
• 208.117.248.0/23
• 208.117.250.0/24
• 208.117.252.0/23
• 208.117.255.0/24
• 216.239.60.0/24
• 2001:4860:4805::/48
• 2600:1902:190::/44
• 2600:1902:210::/44
• 2600:1902:220::/43
• 2600:1902:250::/44
• 2600:1902:260::/44
• 2600:1902:280::/44
• 2600:1902:2a0::/43
• 2600:1902:2c0::/43
• 2600:1902:4f0::/44
• 2600:1902:500::/44
• 2600:1902:520::/43
• 2600:1902:550::/44
• 2600:1902:590::/44
• 2620:11a:a000::/43
• 2620:11a:a018::/46
• 2620:11a:a01d::/48
• 2620:11a:a01e::/47
• 2620:11a:a020::/46
• 2620:11a:a026::/47
• 2620:11a:a028::/45
• 2620:11a:a030::/45
• 2620:11a:a03f::/48

and 5 more.

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS1299 Arelion Sweden AB
• AS174 Cogent Communications, LLC
• AS3257 GTT Communications Inc.
• AS6453 TATA COMMUNICATIONS (AMERICA) INC
• AS15169 Google LLC
• AS6762 TELECOM ITALIA SPARKLE S.p.A.
• AS1273 IDDQD-AS

Downstream networks

• AS19527 Google LLC

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS1299 Arelion Sweden AB
• AS174 Cogent Communications, LLC
• AS3257 GTT Communications Inc.
• AS6453 TATA COMMUNICATIONS (AMERICA) INC
• AS15169 Google LLC
• AS6762 TELECOM ITALIA SPARKLE S.p.A.
• AS19527 Google LLC
• AS1273 IDDQD-AS

Routing security

• RPKI: 225 valid, 8 invalid and 0 not-found announcements; 332 ROAs.
• ASPA: none published.
• IRR: 97% of announcements registered; 464 route objects.
• Listed in as-sets: AS-43515-YT, AS-BBIX-MANILARS, AS-CTBC-CUSTOMERS74, AS-CWCUSTEU, AS-GLOBEINTERNET-CLIENTS, AS-GLOBEINTERNET-CLIENTS, AS-GOOGLE, AS-IAA, AS-OPENTRANSIT, AS-SWCM-MARTIANS-ACCEPT, AS-XO, AS-XO-B, AS1273:AS-CWW, AS1273:AS-CWW-V6, AS23372:AS-GOOGLE, AS39801:AS-MULTIPASS-CUST, AS7606:AS-NSW-IX.