AS64249 — ENDOFFICE - Charles River Operation

AS64249 announces 51 IPv4 prefixes covering 23,296 addresses and 5 IPv6 prefixes.

About this network

ENDOFFICE is the autonomous system for Charles River Operation.

What it's used for

• The address space carries a mix of hosting and enterprise services, evidenced by netnames such as PNL-71, TSL-350, US-FXCAPITAL-20190218, TALON-NET4-1, and COGENT-154-3-16.
• The AS announces 23,296 IPv4 addresses across 51 prefixes and 6 IPv6 prefixes, with only 4 observed neighbours, indicating a role focused on hosting and data center services rather than transit.
• Traffic from this AS consists of web/API endpoints, server hosting, and colocation services for business clients, consistent with the operator's focus on custom colocation, cloud storage, and server hosting.

Notable

• Registrants include 20 Point Networks LLC, Taozen Services LLC, Wired ISP Inc., Talon Voice LLC, Cogent Communications LLC, TYZ Networks, and SMARTHOST LLC, reflecting a diverse portfolio of leased or acquired address space.
• The address inventory is finely subdivided with many /24 and /23 prefixes, suggesting site-by-site segmentation typical of a corporate or hosting estate.

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

Announced prefixes

• 5.182.51.0/24
• 5.182.199.0/24
• 31.132.54.0/24
• 38.124.1.0/24
• 38.146.55.0/24
• 38.242.7.0/24
• 38.242.12.0/24
• 38.242.18.0/24
• 38.242.24.0/24
• 44.32.53.0/24
• 44.104.110.0/24
• 45.10.23.0/24
• 45.58.211.0/24
• 45.67.142.0/23
• 45.67.144.0/24
• 52.124.20.0/23
• 63.246.128.0/24
• 63.246.156.0/23
• 63.251.142.0/24
• 66.150.192.0/24
• 66.150.196.0/24
• 66.150.198.0/24
• 67.22.61.0/24
• 67.22.62.0/24
• 74.118.68.0/22
• 79.98.181.0/24
• 79.98.182.0/24
• 83.143.107.0/24
• 92.249.28.0/24
• 94.154.168.0/23
• 94.154.176.0/24
• 94.154.179.0/24
• 144.86.187.0/24
• 147.189.137.0/24
• 154.3.45.0/24
• 154.3.129.0/24
• 154.3.222.0/24
• 154.3.236.0/23
• 154.9.0.0/24
• 154.9.154.0/24
• 154.12.2.0/24
• 154.12.6.0/24
• 154.13.0.0/24
• 154.39.0.0/24
• 154.39.2.0/24
• 192.203.175.0/24
• 193.148.94.0/24
• 198.145.141.0/24
• 198.145.142.0/23
• 206.197.231.0/24
• 207.32.128.0/19
• 2001:4830:c210::/48
• 2001:4830:c900::/40
• 2602:fe6d::/36
• 2606:6680:13::/48
• 2607:5840::/32

Upstream networks

• AS27552 TowardEX Technologies International, Inc.
• AS174 Cogent Communications, LLC
• AS395584 Data Management

Downstream networks

• AS26824 VLUZNET

Adjacent networks

• AS27552 TowardEX Technologies International, Inc.
• AS174 Cogent Communications, LLC
• AS395584 Data Management
• AS26824 VLUZNET

Routing security

• RPKI: 31 valid, 0 invalid and 36 not-found announcements; 34 ROAs.
• ASPA: none published.
• IRR: 90% of announcements registered; 135 route objects.
• Listed in as-sets: AS-CCF, AS-CCF-TEST, AS-ENDOFFICE, AS-ENDOFFICE, AS16657:AS-CUST, AS64249:AS-ENDOFFICE-BOSTON, AS64249:AS-PEERS-PHX.

Internet exchanges

• Boston Internet Exchange — Boston, United States
• Massachusetts Internet Exchange — Boston, United States