Association for Computing Machinery, Inc.

Data as of 2026-11-08
BGP inherited
This organisation
Netblocks7 · 35,328 IPv4 addresses
IPv6 3 prefixes (largest 2001:468:1f05::/48)
Also registered under this name 10 netblocks across 4 separate records
Record ID265925305
RegistryBGP
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 8 shared RIR contact/maintainer handles
Registry names 3 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (7)

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CIDR Org name Registry Status Confidence
64.238.159.0/24 Association for Computing Machinery, Inc BGP ANNOUNCED ● high
140.221.128.0/17 Association for Computing Machinery, Inc. BGP ANNOUNCED ● high
192.5.192.0/21 Association for Computing Machinery, Inc. BGP ANNOUNCED ● high
192.135.174.0/24 Association for Computing Machinery, Inc ARIN DIRECT ALLOCATION ● high
2001:468:1f05::/48 Association for Computing Machinery, Inc. BGP ANNOUNCED ● high
2001:468:1f07::/48 Association for Computing Machinery, Inc. BGP ANNOUNCED ● high
2001:4830:2401::/48 Association for Computing Machinery, Inc ARIN ASSIGNMENT ● high

IPv6 ranges (3)

Network trust

what's this?
RPKI hygiene: C how networks compare →
71.4% of checked blocks have valid RPKI ROA coverage (5 of 7)
Possible discrepancies (1)

These blocks are registered to Association for Computing Machinery, Inc. but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

2001:4830:2401::/48 /48 authorized for AS27552 — TowardEX Technologies International, Inc.

NIC Handles

ACM AGR21-ARIN AGR21-ARIN AS14031 AS36607 AS401015 BL162-ARIN WG491-ARIN