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Autonomous System

AS265303

AS265303

Announced IPs
2,560
CIDR prefixes
8
ASN
AS265303

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.

53/100
Caution
How this score is built

Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 10 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS265303 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

PrefixOrigin ASNsLast detected (UTC)
177.126.1.0/24 AS262907, AS265303 2026-11-13 12:09:09
177.126.6.0/24 AS262907, AS265303 2026-11-13 12:09:09
201.87.134.0/23 AS262907, AS265303 2026-11-13 12:09:09
168.0.172.0/22 AS262907, AS265303 2026-11-13 12:09:09
201.87.133.0/24 AS262907, AS265303 2026-11-13 12:09:09
201.87.146.0/23 AS262907, AS265303 2026-11-13 12:09:09
189.39.218.0/23 AS262907, AS265303 2026-11-13 12:09:09
201.87.150.0/24 AS262907, AS265303 2026-11-13 12:09:09
177.126.11.0/24 AS262907, AS265303 2026-11-12 14:09:05
201.87.152.0/24 AS262907, AS265303 2026-11-12 14:09:05

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
189.39.218.0/23 512
0.0%
AS265303 BR — —
201.87.146.0/23 512
0.0%
AS265303 BR São Paulo Barueri
177.126.11.0/24 256
0.0%
AS265303 BR — —
189.39.216.0/24 256
0.0%
AS265303 BR — —
200.150.175.0/24 256
0.0%
AS265303 BR — —
201.87.136.0/24 256
0.0%
AS265303 BR — —
201.87.148.0/24 256
0.0%
AS265303 BR — —
201.87.152.0/24 256
0.0%
AS265303 BR — —

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS265303 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
201.87.148.0/23 2,823,051 2026-09-15 05:08:36
201.87.152.0/23 2,788,620 2026-09-15 05:08:36
200.150.164.0/23 2,768,577 2026-09-15 05:08:36
177.126.10.0/23 2,761,966 2026-09-15 04:50:44
177.126.8.0/24 557,668 2026-09-15 04:33:33
201.87.150.0/24 265,399 2026-11-13 12:01:24
177.126.15.0/24 254,965 2026-09-15 04:05:58
177.126.13.0/24 253,269 2026-09-15 04:05:58
187.120.12.0/24 234,994 2026-09-15 04:05:58
201.87.144.0/24 231,729 2026-09-15 04:05:58
200.150.170.0/24 231,335 2026-09-15 04:05:58
200.150.167.0/24 231,224 2026-09-15 04:05:58
200.150.172.0/24 231,100 2026-09-15 04:05:58
200.150.169.0/24 231,035 2026-09-15 04:05:58
168.0.172.0/22 139,102 2026-11-12 23:39:11
177.126.1.0/24 129,954 2026-11-12 20:28:29
201.87.133.0/24 129,418 2026-11-13 08:46:44
201.87.134.0/23 128,086 2026-11-13 08:46:44
201.87.146.0/23 127,847 2026-11-13 08:46:44
189.39.216.0/22 126,954 2026-09-15 04:05:58
177.126.6.0/24 124,652 2026-11-12 20:28:29
201.87.136.0/23 117,171 2026-09-15 04:05:58
201.87.128.0/24 117,063 2026-09-15 04:05:58
201.87.131.0/24 117,008 2026-09-15 04:05:58
201.87.142.0/24 116,932 2026-09-15 04:05:58
177.126.11.0/24 86,684 2026-11-13 11:24:06
189.39.216.0/24 84,639 2026-11-13 11:24:06
201.87.147.0/24 84,286 2026-11-13 11:24:06
200.150.175.0/24 84,194 2026-11-13 11:24:06
201.87.146.0/24 84,142 2026-11-13 11:24:06
201.87.136.0/24 83,838 2026-11-13 11:24:06
189.39.218.0/23 82,674 2026-11-13 11:24:06
201.87.152.0/24 81,549 2026-11-13 11:24:06
201.87.148.0/24 76,260 2026-11-13 11:24:06
177.126.10.0/24 61,291 2026-10-27 09:29:40
189.39.217.0/24 5,710 2026-07-30 10:00:25
189.39.218.0/24 2,961 2026-07-30 10:00:25
189.39.219.0/24 2,951 2026-07-14 07:04:04
189.39.216.0/23 2,819 2026-09-15 00:28:12
168.0.172.0/23 2,297 2026-09-15 00:28:34
168.0.174.0/23 2,283 2026-09-15 00:28:53
201.87.141.0/24 7 2026-07-30 10:00:25
200.150.174.0/24 7 2026-07-30 10:00:25
200.150.164.0/24 7 2026-07-30 10:00:25
201.87.140.0/24 7 2026-07-30 10:00:25
201.87.134.0/24 7 2026-07-30 10:00:25
201.87.135.0/24 7 2026-07-30 10:00:25
201.87.137.0/24 7 2026-07-30 10:00:25
201.87.153.0/24 7 2026-07-30 10:00:25
200.150.165.0/24 7 2026-07-30 10:00:25

Showing top 50 of 55 announced prefixes by sample volume.

Frequently Asked Questions

What is AS265303?

AS265303 is an Autonomous System Number assigned to AS265303. 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 AS265303 announce?

AS265303 announces 2.6K IPv4 addresses distributed across 8 routed CIDR prefixes. The network is registered in Brazil.

Who operates AS265303?

AS265303 is operated by AS265303. The organization is based in Brazil. You can view all IP ranges and related ASNs on the organization page.

What country is AS265303 registered in?

AS265303 is registered in Brazil. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-11-13 12:09:05 UTC
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