Home ASN LookupAS399989

AS399989 ULTRAONE-01 - ULTRA ONE

🇺🇸

ARINassigned

Announced Prefixes (BGP)

38total

37 IPv41 IPv6

IPv4 Addresses

Allocated (RIR)7,680

Announced (BGP)15,616

IPv6 Addresses

Allocated (RIR)1.5×10²⁹

Announced (BGP)7.9×10²⁸

Prefix Limit (IPv4)

100

Prefix Limit (IPv6)

Country

🇺🇸 US

RIR

ARIN

Status

assigned

Allocated

2021-08-25

Announced Prefixes

(BGP)38

Prefix	RPKI	IRR	Last Seen
23.129.160.0/24	No ROA	-	2026-10-11
23.188.208.0/24MOAS	No ROA	Other IRR	2026-10-11
43.242.139.0/24	Invalid	-	2026-10-11
65.86.140.0/22	Valid	Other IRR	2026-10-11
74.0.36.0/22	No ROA	-	2026-10-11
74.2.180.0/22	Valid	ARINOther IRR	2026-10-11
82.38.176.0/24	Valid	Other IRRRIPE	2026-10-11
82.38.177.0/24	Valid	Other IRRRIPE	2026-10-11
82.38.178.0/24	Valid	Other IRRRIPE	2026-10-11
82.38.179.0/24	Valid	Other IRRRIPE	2026-10-11

1-10 of 38

1 / 4

Allocated Prefixes

(RIR)17

Prefix	Country	RIR	Status
23.188.208.0/24	🇺🇸 US	ARIN	allocated
43.242.139.0/24	🇭🇰 HK	RIPE	assigned
86.109.76.0/22	🇪🇺 EU	RIPE	assigned
103.47.59.0/24	🇪🇺 EU	RIPE	assigned
109.111.32.0/22	🇪🇺 EU	RIPE	assigned
109.111.44.0/22	🇺🇸 US	RIPE	assigned
109.111.60.0/22	🇺🇸 US	RIPE	assigned
109.176.25.0/24	🇪🇺 EU	RIPE	assigned
109.176.215.0/24	🇪🇺 EU	RIPE	assigned
124.158.113.0/24	🇪🇺 EU	RIPE	assigned

1-10 of 17

1 / 2

All 38 announced prefixes of AS399989 →

BGP Neighbours

(seen in AS paths)

Upstreams (1)

Networks AS399989 hands its own prefixes to: transit providers, or peers at an exchange.

AS7029Windstream Communications38

Downstreams (8)

Networks whose own prefixes AS399989 passes on: usually its customers.

AS32693NEXX38
AS400522Rootcloud32
AS400177Rootcloud18
AS394082Rootcloud5
AS11527Xproxies2
AS397881Stingers2
AS54255Bitstine1
AS401576Bitriot1

Other adjacent networks (2)

Adjacent to AS399989 in the transit part of AS paths: peers, providers or customers.

AS401591IPCrash10
AS209319Bitrion Spectriot2

ASPA

No ASPA

External Links

ARIN Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS399989 should publish an ASPA object
IPv4 transfers in the ARIN regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/399989

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/399989" | jq