Skip to main content
Autonomous System

AS12129

123.Net, Inc.

Announced IPs
164,608
CIDR prefixes
87
ASN
AS12129

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.

57/100
Caution
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 1 MOAS prefix — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS12129 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)
66.54.96.0/22 AS12129, AS19310 2026-07-23 10:23:28

Network profile

Source: PeeringDB →
Network type NSP
Traffic level 200-300Gbps
Geographic scope North America
Traffic ratio Balanced
Peering policy Open
IRR record LEVEL3::AS-I123

Present at 4 internet exchanges: Equinix Chicago, Equinix Ashburn, DET-iX, Grand Rapids Internet Exchange (GRR-iX)

Web3 footprint

AS12129 hosts 1 observed decentralized-network node across 1 network. It’s a neutral signal — it does not affect the reputation score. See the full web3 node map.

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
152.160.0.0/18 16.4K
76.7%
123.Net, Inc. US Michigan Detroit
207.91.192.0/18 16.4K
14.8%
123.Net, Inc. US Michigan Rochester Hills
69.39.64.0/19 8.2K
53.4%
123.Net, Inc. US Michigan Sterling
152.160.96.0/19 8.2K
76.3%
123.Net, Inc. US Michigan Nashville
207.91.224.0/19 8.2K
20.4%
123.Net, Inc. US Michigan Hamilton
209.131.0.0/19 8.2K
81.5%
123.Net, Inc. US Michigan Flint
65.183.176.0/20 4.1K
72.7%
123.Net, Inc. US Michigan Detroit
66.103.224.0/20 4.1K
87.1%
123.Net, Inc. US Michigan Detroit
74.126.0.0/20 4.1K
71.6%
123.Net, Inc. US Michigan Pleasant Ridge
152.160.64.0/20 4.1K
79.7%
123.Net, Inc. US Michigan Rochester
152.160.128.0/20 4.1K
77.6%
123.Net, Inc. US Michigan Grand Rapids
152.160.160.0/20 4.1K
78.6%
123.Net, Inc. US Michigan Grand Rapids
192.96.208.0/20 4.1K
6.2%
123.Net, Inc. US Michigan Flint
204.232.80.0/20 4.1K
41.5%
123.Net, Inc. US Michigan Oak Park
205.251.176.0/20 4.1K
36.0%
123.Net, Inc. US Michigan Detroit
207.91.208.0/20 4.1K
0.0%
123.Net, Inc. US Michigan Rochester Hills
209.103.128.0/20 4.1K
0.3%
123.Net, Inc. US
209.124.48.0/20 4.1K
63.8%
123.Net, Inc. US Michigan Wyoming
216.109.192.0/20 4.1K
59.0%
123.Net, Inc. US Michigan Detroit
216.150.224.0/20 4.1K
46.0%
123.Net, Inc. US Michigan Berkley
216.234.96.0/20 4.1K
68.6%
123.Net, Inc. US Michigan Highland Park
65.183.160.0/21 2.0K
80.7%
123.Net, Inc. US
66.51.152.0/21 2.0K
51.0%
123.Net, Inc. US Michigan Troy
66.103.248.0/21 2.0K
71.5%
123.Net, Inc. US Michigan Detroit
67.214.120.0/21 2.0K
24.4%
123.Net, Inc. US Michigan Franklin
74.126.24.0/21 2.0K
95.8%
123.Net, Inc. US Michigan Taylor
152.160.88.0/21 2.0K
78.9%
123.Net, Inc. US Michigan Auburn Hills
152.160.152.0/21 2.0K
59.8%
123.Net, Inc. US Michigan Grand Rapids
152.160.184.0/21 2.0K
75.2%
123.Net, Inc. US Michigan Grand Rapids
199.249.0.0/21 2.0K
60.1%
123.Net, Inc. US Michigan Grand Rapids
207.91.200.0/21 2.0K
12.4%
123.Net, Inc. US Michigan Hamilton
209.124.40.0/21 2.0K
54.9%
123.Net, Inc. US
216.234.120.0/21 2.0K
71.9%
123.Net, Inc. US Michigan Farmington Hills
65.183.168.0/22 1.0K
43.8%
123.Net, Inc. US
66.51.144.0/22 1.0K
27.0%
123.Net, Inc. US Michigan Detroit
66.103.240.0/22 1.0K
0.0%
123.Net, Inc. US
74.126.20.0/22 1.0K
48.1%
123.Net, Inc. US Michigan Royal Oak
130.44.28.0/22 1.0K
0.0%
123.Net, Inc. US Michigan Romeo
130.51.212.0/22 1.0K
0.0%
123.Net, Inc. US
152.160.84.0/22 1.0K
80.2%
123.Net, Inc. US Michigan Auburn Hills
152.160.148.0/22 1.0K
80.3%
123.Net, Inc. US Michigan Grand Rapids
152.160.176.0/22 1.0K
39.2%
123.Net, Inc. US
198.3.44.0/22 1.0K
0.0%
123.Net, Inc. US
199.167.252.0/22 1.0K
68.8%
123.Net, Inc. US
199.231.52.0/22 1.0K
36.8%
123.Net, Inc. US Michigan Detroit
207.91.196.0/22 1.0K
46.9%
123.Net, Inc. US Michigan Dearborn
209.124.32.0/22 1.0K
47.9%
123.Net, Inc. US
216.234.116.0/22 1.0K
66.2%
123.Net, Inc. US
65.183.174.0/23 512
86.1%
123.Net, Inc. US
66.103.246.0/23 512
88.3%
123.Net, Inc. US
67.214.112.0/23 512
81.4%
123.Net, Inc. US
67.214.116.0/23 512
12.1%
123.Net, Inc. US Michigan Saline
69.54.68.0/23 512
93.8%
123.Net, Inc. US
74.126.18.0/23 512
95.9%
123.Net, Inc. US Michigan Brighton
152.160.80.0/23 512
79.9%
123.Net, Inc. US
152.160.146.0/23 512
80.9%
123.Net, Inc. US Michigan Grand Rapids
152.160.182.0/23 512
77.1%
123.Net, Inc. US
181.214.238.0/23 512
0.2%
123.Net, Inc. AE
192.159.68.0/23 512
0.4%
123.Net, Inc. US Michigan Troy
199.33.234.0/23 512
0.0%
123.Net, Inc. US
207.91.194.0/23 512
0.0%
123.Net, Inc. US Michigan Farmington Hills
209.124.36.0/23 512
21.9%
123.Net, Inc. US
216.234.112.0/23 512
63.9%
123.Net, Inc. US
37.221.109.0/24 256
33.2%
123.Net, Inc. US Michigan Flint
65.183.173.0/24 256
99.2%
123.Net, Inc. US
66.51.149.0/24 256
0.0%
123.Net, Inc. US Michigan Alger
66.51.150.0/24 256
3.9%
123.Net, Inc. US Michigan Sterling
66.103.245.0/24 256
0.0%
123.Net, Inc. US
67.214.115.0/24 256
0.0%
123.Net, Inc. US
67.214.118.0/24 256
74.6%
123.Net, Inc. US Michigan Flint
69.87.152.0/24 256
0.0%
123.Net, Inc. US
74.126.17.0/24 256
15.6%
123.Net, Inc. US Michigan Macomb
147.189.140.0/24 256
27.0%
123.Net, Inc. US Michigan Flint
149.19.205.0/24 256
0.0%
123.Net, Inc. US
152.160.82.0/24 256
83.6%
123.Net, Inc. US
152.160.144.0/24 256
78.1%
123.Net, Inc. US
152.160.181.0/24 256
72.7%
123.Net, Inc. US
176.111.221.0/24 256
20.3%
123.Net, Inc. US Michigan Flint
192.149.240.0/24 256
0.0%
123.Net, Inc. US
192.153.192.0/24 256
0.0%
123.Net, Inc. US
198.153.129.0/24 256
0.0%
123.Net, Inc. US
204.106.17.0/24 256
0.4%
123.Net, Inc. US
205.137.160.0/24 256
0.0%
123.Net, Inc. US
206.168.80.0/24 256
0.0%
123.Net, Inc. US
207.91.193.0/24 256
0.0%
123.Net, Inc. US Michigan Dearborn Heights
208.86.112.0/24 256
0.0%
123.Net, Inc. US
209.124.38.0/24 256
87.5%
123.Net, Inc. US
216.234.114.0/24 256
61.3%
123.Net, Inc. US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS12129 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
152.160.110.0/24 72,662 2026-07-23 09:52:26
152.160.192.0/18 46,612 2026-06-13 16:41:26
207.91.192.0/24 45,525 2026-06-13 16:41:26
66.103.224.0/19 6,106 2026-07-23 10:05:55
74.126.0.0/19 6,099 2026-07-23 10:05:55
65.183.160.0/19 6,091 2026-07-23 10:05:55
66.51.144.0/20 6,086 2026-07-23 10:05:55
67.214.112.0/20 6,077 2026-07-23 10:05:55
69.39.64.0/19 6,057 2026-07-23 10:05:55
205.251.176.0/20 6,054 2026-07-23 10:05:55
209.131.0.0/19 6,043 2026-07-23 10:05:55
152.160.0.0/17 6,041 2026-07-23 10:05:55
69.54.68.0/24 6,040 2026-07-23 10:05:55
69.54.69.0/24 6,039 2026-07-23 10:05:55
74.126.12.0/24 6,037 2026-07-23 10:05:55
216.150.224.0/20 6,029 2026-07-23 10:05:55
204.232.80.0/20 6,021 2026-07-23 10:05:55
204.106.17.0/24 6,018 2026-07-23 10:05:55
152.160.128.0/18 6,014 2026-07-23 10:05:55
37.221.109.0/24 6,014 2026-07-23 10:05:55
207.91.192.0/18 6,014 2026-07-23 10:05:55
199.33.234.0/23 6,005 2026-07-23 10:05:55
209.124.32.0/19 5,999 2026-07-23 10:05:55
192.96.208.0/20 5,995 2026-07-23 10:05:55
199.167.252.0/22 5,989 2026-07-23 10:05:55
181.214.238.0/23 5,984 2026-07-23 10:05:55
199.231.52.0/22 5,979 2026-07-23 10:05:55
147.189.140.0/24 5,959 2026-07-23 10:05:55
216.109.192.0/20 5,957 2026-07-23 10:05:55
216.234.96.0/19 5,951 2026-07-23 10:05:55
130.44.28.0/22 5,933 2026-07-23 10:05:55
198.153.129.0/24 5,919 2026-07-23 10:05:55
176.111.221.0/24 5,904 2026-07-23 10:05:55
69.87.152.0/24 5,872 2026-07-23 10:05:55
192.159.68.0/23 5,844 2026-07-23 10:05:55
208.86.112.0/24 5,833 2026-07-23 10:05:55
209.103.128.0/20 5,827 2026-07-23 10:05:55
198.3.44.0/24 5,825 2026-07-23 10:05:55
198.3.47.0/24 5,824 2026-07-23 10:05:55
198.3.45.0/24 5,806 2026-07-23 10:05:55
149.19.205.0/24 5,803 2026-07-23 10:05:55
192.149.240.0/24 5,796 2026-07-23 10:05:55
192.153.192.0/24 5,770 2026-07-23 10:05:55
198.3.46.0/24 5,760 2026-07-23 10:05:55
152.160.140.0/22 5,677 2026-07-23 10:05:55
152.160.160.0/20 5,643 2026-07-23 10:05:55
207.91.232.0/21 5,643 2026-07-23 10:05:55
152.160.144.0/22 5,612 2026-07-23 10:05:55
152.160.184.0/21 5,602 2026-07-23 10:05:55
209.124.56.0/22 5,589 2026-07-23 10:05:55

Showing top 50 of 56 announced prefixes by sample volume.

Frequently Asked Questions

What is AS12129?

AS12129 is an Autonomous System Number assigned to 123.Net, Inc.. 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 AS12129 announce?

AS12129 announces 164.6K IPv4 addresses distributed across 87 routed CIDR prefixes. The network is registered in United States.

Who operates AS12129?

AS12129 is operated by 123.Net, Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS12129 registered in?

AS12129 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-23 10:25:31 UTC
Share