Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS29987

Announcement observedARIN

SINFONY6 - Sinfony6, LLC · SINFONY6

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/2/2026, 05:52:14Snapshot expired

View network topology RDAP registration

ASN: AS29987
Registration country: United States
Name: SINFONY6 - Sinfony6, LLC
Abbreviation: SINFONY6
Registration date: 2/11/2025, 14:09:36
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
187.31.0.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.1.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.10.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.100.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.11.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.12.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.13.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.14.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.15.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.16.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.17.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.18.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.19.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.2.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.20.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.3.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.4.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.5.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.6.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.7.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.8.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid
187.31.9.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/18/2026, 00:00:00	10/2/2026, 00:00:00	✓	×	Currently valid

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: SINFONY6 - Sinfony6, LLC
RIR: ARIN
Registration country: United States
Registration date: 2/11/2025, 14:09:36
Abuse contact: network@sinfony6.com

Snapshot trend

10/2/2026, 05:52:1422 v40 v63 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · rir-rdap-asn · iana-rdap-asn-bootstrap