AS27281 — QUANTCAST

Network type: hosting

AS27281 announces 7 IPv4 prefixes covering 3,584 addresses and 6 IPv6 prefixes.

About this network

The AS handle QUANTCAST is operated by Quantcast Corporation.

What it's used for

• The address space carries infrastructure for a global advertising technology platform, evidenced by netnames QCAST, QUANTCAST-UK, and QUANTCAST-AP registered to Quantcast entities.
• The AS announces 3584 IPv4 addresses across 7 prefixes and 7 IPv6 prefixes, while maintaining 123 observed neighbours; this ratio of modest address inventory against a high neighbour count indicates a business network with significant peering and transit relationships rather than a large-scale access provider.

Notable

• Registrants align with the announcer, including Quantcast Corporation for US blocks and Quantcast Ltd. for UK blocks, confirming consistent ownership across regions.
• The inventory is subdivided into distinct regional blocks, including US space in the 192.184.0.0/16 range, UK space in 91.228.0.0/16, and AP space in 103.229.0.0/16, reflecting a global corporate estate structure.

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

Announced prefixes

• 91.228.72.0/24
• 91.228.74.0/24
• 103.229.11.0/24
• 192.184.67.0/24
• 192.184.68.0/22
• 192.184.72.0/22
• 192.184.76.0/23
• 2620:116:800b::/48
• 2620:116:800c::/47
• 2620:116:801a::/47
• 2620:116:801c::/46
• 2620:116:8082::/47
• 2620:116:808c::/48

Upstream networks

• AS6461 Zayo Bandwidth
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS3356 Level 3 Parent, LLC
• AS8220 COLT Technology Services Group Limited
• AS24482 SG.GS
• AS34549 meerfarbig GmbH & Co. KG
• AS57463 NetIX Communications JSC
• AS293 ESnet
• AS9002 RETN Limited
• AS29632 Netassist International EOOD
• AS37721 Virtual Technologies & Solutions
• AS207044 Enet Telecommunications Networks Limited
• AS34019 Hivane Association
• AS394256 Tech Futures Interactive Inc.
• AS17639 Converge ICT Solutions Inc.
• AS38001 NewMedia Express Pte Ltd
• AS48362 Stadtwerke Feldkirch
• AS1836 green.ch AG
• AS212024 Marc Schmitt
• AS20562 Broadband Hosting B.V.
• AS12779 IT.Gate S.p.A.
• AS20485 Joint Stock Company TransTeleCom
• AS31027 GlobalConnect A/S
• AS7575 Australian Academic and Research Network (AARNet)

Adjacent networks

• AS6461 Zayo Bandwidth
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS3356 Level 3 Parent, LLC
• AS8220 COLT Technology Services Group Limited
• AS24482 SG.GS
• AS34549 meerfarbig GmbH & Co. KG
• AS57463 NetIX Communications JSC
• AS293 ESnet
• AS9002 RETN Limited
• AS37721 Virtual Technologies & Solutions
• AS29632 Netassist International EOOD
• AS207044 Enet Telecommunications Networks Limited
• AS1836 green.ch AG
• AS17639 Converge ICT Solutions Inc.
• AS34019 Hivane Association
• AS212024 Marc Schmitt
• AS394256 Tech Futures Interactive Inc.
• AS48362 Stadtwerke Feldkirch
• AS38001 NewMedia Express Pte Ltd
• AS56662 Marcin Gondek
• AS3130 RGnet OU
• AS213241 TECHIT.BE SRL
• AS37100 SEACOM Limited
• AS31027 GlobalConnect A/S

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany
• Equinix Internet Exchange Singapore — Singapore, Singapore
• Equinix Internet Exchange Ashburn — Ashburn, United States
• Seattle Internet Exchange — Seattle, United States
• Equinix Internet Exchange San Jose (Bay Area) — San Jose, United States