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Autonomous System

AS399989

ULTRA ONE

Announced IPs
14,848
CIDR prefixes
27
ASN
AS399989

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.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
82.38.184.0/21 2.0K
1.5%
ULTRA ONE GB England Prescot
65.86.140.0/22 1.0K
3.3%
ULTRA ONE US
74.0.36.0/22 1.0K
0.0%
ULTRA ONE US
74.2.180.0/22 1.0K
10.6%
ULTRA ONE US
82.38.176.0/22 1.0K
2.9%
ULTRA ONE GB England Prescot
86.109.76.0/22 1.0K
0.0%
ULTRA ONE HU
109.111.44.0/22 1.0K
35.6%
ULTRA ONE AU
109.111.60.0/22 1.0K
57.0%
ULTRA ONE AU
216.46.80.0/22 1.0K
76.8%
ULTRA ONE US
23.129.160.0/24 256
0.0%
ULTRA ONE US
23.188.208.0/24 256
0.0%
ULTRA ONE US
43.242.139.0/24 256
19.5%
Colocation America Corporation US
45.40.113.0/24 256
0.0%
Colocation America Corporation US
103.47.59.0/24 256
16.4%
Colocation America Corporation US
104.129.255.0/24 256
18.0%
Colocation America Corporation US
109.176.25.0/24 256
19.5%
GCI Network Solutions Limited GB
109.176.215.0/24 256
0.0%
ULTRA ONE GB
109.176.255.0/24 256
19.5%
ULTRA ONE GB
124.158.113.0/24 256
10.9%
Colocation America Corporation US
124.158.114.0/24 256
10.2%
Colocation America Corporation US
180.131.144.0/24 256
18.8%
Colocation America Corporation US
193.135.116.0/24 256
0.0%
ULTRA ONE US Maryland Essex
193.135.119.0/24 256
0.0%
ULTRA ONE US
198.102.10.0/24 256
7.0%
Colocation America Corporation US
209.236.207.0/24 256
14.8%
Colocation America Corporation US
213.218.227.0/24 256
15.2%
GCI Network Solutions Limited GB
216.183.228.0/24 256
10.9%
Colocation America Corporation US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS399989 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
86.109.76.0/22 5,993 2026-06-29 15:07:48
74.0.36.0/22 5,785 2026-07-23 22:00:40
109.176.215.0/24 5,128 2026-07-23 22:25:00
109.176.25.0/24 5,039 2026-07-23 22:25:00
109.176.255.0/24 5,038 2026-07-23 22:25:00
213.218.227.0/24 5,009 2026-07-23 22:25:00
23.188.208.0/24 4,943 2026-07-23 22:25:00
43.242.139.0/24 4,895 2026-07-23 22:25:00
65.86.140.0/22 4,880 2026-07-23 22:25:00
104.129.255.0/24 4,878 2026-07-23 22:25:00
74.2.180.0/22 4,868 2026-07-23 22:25:00
82.38.184.0/24 4,838 2026-07-23 22:25:00
180.131.144.0/24 4,829 2026-07-23 22:25:00
82.38.178.0/24 4,828 2026-07-23 22:25:00
82.38.185.0/24 4,823 2026-07-23 22:25:00
82.38.179.0/24 4,818 2026-07-23 22:25:00
209.236.207.0/24 4,817 2026-07-23 22:33:10
82.38.186.0/24 4,815 2026-07-23 22:25:00
82.38.177.0/24 4,808 2026-07-23 22:25:00
82.38.176.0/24 4,803 2026-07-23 22:25:00
124.158.113.0/24 4,798 2026-07-23 22:25:00
216.183.228.0/24 4,795 2026-07-23 22:25:00
124.158.114.0/24 4,790 2026-07-23 22:25:00
82.38.191.0/24 4,781 2026-07-23 22:25:00
82.38.188.0/24 4,778 2026-07-23 22:25:00
82.38.190.0/24 4,775 2026-07-23 22:25:00
82.38.189.0/24 4,773 2026-07-23 22:25:00
198.102.10.0/24 4,768 2026-07-23 22:25:00
109.111.60.0/22 4,767 2026-07-23 22:25:00
82.38.187.0/24 4,764 2026-07-23 22:25:00
103.47.59.0/24 4,723 2026-07-23 22:25:00
109.111.44.0/22 4,709 2026-07-23 22:25:00
216.46.80.0/22 4,679 2026-07-23 22:25:00
193.135.119.0/24 4,549 2026-07-23 22:25:00
193.135.116.0/24 4,515 2026-07-23 22:25:00
23.129.160.0/24 3,931 2026-07-23 22:38:37
109.111.32.0/22 2,021 2026-05-25 15:40:03
194.231.128.0/22 521 2026-07-23 20:05:11
109.111.56.0/22 40 2026-05-25 15:17:39
184.174.7.0/24 1 2026-05-19 15:38:55

Frequently Asked Questions

What is AS399989?

AS399989 is an Autonomous System Number assigned to ULTRA ONE. 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 AS399989 announce?

AS399989 announces 14.8K IPv4 addresses distributed across 27 routed CIDR prefixes. The network is registered in United States.

Who operates AS399989?

AS399989 is operated by ULTRA ONE. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS399989 registered in?

AS399989 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 22:40:31 UTC
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