Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 4 internet exchanges: KCIX, STLIX: Main, HOUIX: Main, SpringIX
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 187.31.0.0/16 | 65.5K |
0.0%
|
Sinfony6, LLC | BR | — | — |
| 187.31.0.0/20 | 4.1K |
0.0%
|
Sinfony6, LLC | BR | — | — |
| 187.203.208.0/20 | 4.1K |
83.4%
|
Sinfony6, LLC | MX | — | — |
| 187.31.16.0/21 | 2.0K |
0.0%
|
Sinfony6, LLC | BR | — | — |
| 187.31.16.0/22 | 1.0K |
0.0%
|
Sinfony6, LLC | BR | — | — |
| 187.31.24.0/22 | 1.0K |
0.0%
|
Sinfony6, LLC | BR | — | — |
| 187.31.28.0/23 | 512 |
0.0%
|
Sinfony6, LLC | BR | — | — |
| 23.134.108.0/24 | 256 |
0.0%
|
Sinfony6, LLC | US | — | — |
| 187.31.20.0/24 | 256 |
0.0%
|
Sinfony6, LLC | BR | — | — |
| 187.31.31.0/24 | 256 |
0.0%
|
Sinfony6, LLC | BR | — | — |
| 187.203.241.0/24 | 256 |
82.0%
|
Sinfony6, LLC | MX | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS29987 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 23.134.108.0/24 | 14,445 | 2026-08-04 18:08:26 |
| 187.203.220.0/24 | 12,671 | 2026-08-04 07:00:20 |
| 187.203.221.0/24 | 12,667 | 2026-08-04 07:00:20 |
| 187.203.213.0/24 | 12,666 | 2026-08-04 07:00:20 |
| 187.203.217.0/24 | 12,661 | 2026-08-04 07:00:20 |
| 187.203.212.0/24 | 12,644 | 2026-08-04 07:00:20 |
| 187.203.215.0/24 | 12,637 | 2026-08-04 07:00:20 |
| 187.203.218.0/24 | 12,628 | 2026-08-04 07:00:20 |
| 187.203.223.0/24 | 12,613 | 2026-08-04 07:00:20 |
| 187.203.219.0/24 | 12,607 | 2026-08-04 07:00:20 |
| 187.203.208.0/24 | 12,607 | 2026-08-04 07:00:20 |
| 187.203.208.0/20 | 12,606 | 2026-08-04 07:00:20 |
| 187.203.214.0/24 | 12,589 | 2026-08-04 07:00:20 |
| 187.203.216.0/24 | 12,586 | 2026-08-04 07:00:20 |
| 187.203.209.0/24 | 12,583 | 2026-08-04 07:00:20 |
| 187.203.241.0/24 | 12,575 | 2026-08-04 07:00:20 |
| 187.203.211.0/24 | 12,550 | 2026-08-04 07:00:20 |
| 187.203.210.0/24 | 12,549 | 2026-08-04 07:00:20 |
| 187.203.222.0/24 | 12,523 | 2026-08-04 07:00:20 |
| 187.31.7.0/24 | 11,864 | 2026-08-04 17:44:25 |
| 187.31.6.0/24 | 11,851 | 2026-08-04 17:44:25 |
| 187.31.5.0/24 | 11,839 | 2026-08-04 17:44:25 |
| 187.31.2.0/24 | 11,831 | 2026-08-04 17:44:25 |
| 187.31.4.0/24 | 11,826 | 2026-08-04 17:44:25 |
| 187.31.0.0/24 | 11,820 | 2026-08-04 17:44:25 |
| 187.31.8.0/24 | 11,819 | 2026-08-04 17:44:25 |
| 187.31.3.0/24 | 11,794 | 2026-08-04 17:44:25 |
| 187.31.0.0/16 | 10,585 | 2026-07-01 13:35:37 |
| 187.31.9.0/24 | 8,337 | 2026-08-04 17:44:25 |
| 187.31.13.0/24 | 5,974 | 2026-08-04 17:44:25 |
| 187.31.11.0/24 | 5,973 | 2026-08-04 17:44:25 |
| 187.31.14.0/24 | 5,969 | 2026-08-04 17:44:25 |
| 187.31.1.0/24 | 5,963 | 2026-08-04 17:44:25 |
| 187.31.20.0/24 | 5,961 | 2026-08-04 17:44:25 |
| 187.31.15.0/24 | 5,961 | 2026-08-04 17:44:25 |
| 187.31.12.0/24 | 5,952 | 2026-08-04 17:44:25 |
| 187.31.16.0/24 | 5,949 | 2026-08-04 17:44:25 |
| 187.31.19.0/24 | 5,943 | 2026-08-04 17:44:25 |
| 187.31.10.0/24 | 5,941 | 2026-08-04 17:44:25 |
| 187.31.18.0/24 | 5,933 | 2026-08-04 17:44:25 |
| 187.31.17.0/24 | 5,928 | 2026-08-04 17:44:25 |
Frequently Asked Questions
What is AS29987?
AS29987 is an Autonomous System Number assigned to Sinfony6, LLC. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS29987 announce?
AS29987 announces 70.1K IPv4 addresses distributed across 11 routed CIDR prefixes. The network is registered in United States.
Who operates AS29987?
AS29987 is operated by Sinfony6, LLC. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS29987 registered in?
AS29987 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.