Home Prefix Lookup170.23.128.0/17

170.23.128.0/17 - (AS61107)

IPv4RIPE NCCallocatedAS61107No ROA

CIDR

170.23.128.0/17

IP Version

IPv4

Addresses

32.7K

Mask

/17 (255.255.128.0)

Country

🇳🇱 The Netherlands

City

Amsterdam (Amsterdam-Zuidoost)

RIR

RIPE NCC

Status

allocated

Allocated

1994-01-05

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below.

More-Specific Announcements

114 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
170.23.128.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.129.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.130.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.131.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.132.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.133.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.134.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.135.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.136.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.138.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.139.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.140.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.141.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.142.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.143.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.144.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.145.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.146.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.147.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.148.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.149.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.150.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.151.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.152.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.153.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.154.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.155.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.156.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.158.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.159.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.160.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.161.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.164.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.165.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.166.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.168.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.169.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.170.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.171.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.172.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.173.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.174.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.175.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.176.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.177.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.178.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.179.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.180.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.181.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.182.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.183.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.184.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.185.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.188.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.189.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.190.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.191.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.192.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.193.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.196.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.197.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.198.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.199.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.200.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.201.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.204.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.205.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.206.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.207.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.208.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.209.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.210.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.211.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.212.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.213.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.214.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.215.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.216.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.217.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.218.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.219.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.220.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.221.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.222.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.223.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.224.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.225.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.226.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.227.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.228.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.229.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.230.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.231.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.232.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.233.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.234.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.235.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.236.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.237.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.238.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.239.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.240.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.241.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.244.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.245.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.247.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.248.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.249.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.250.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.251.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.252.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.253.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.254.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13
170.23.255.0/24	AS7979 SERVERS-COM - Servers.com, Inc.	No ROA	-	2026-10-13

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS7979	Other IRR	MAINT-AS46786	2025-05-30

More Specific Prefixes

Prefix	AS	Country	Status
170.23.128.0/22		🇳🇱NL	assigned
170.23.132.0/22		🇳🇱NL	assigned
170.23.136.0/22		🇩🇪DE	assigned
170.23.140.0/22		🇱🇺LU	assigned
170.23.144.0/22		🇱🇺LU	assigned
170.23.148.0/22		🇳🇱NL	assigned
170.23.152.0/22		🇳🇱NL	assigned
170.23.156.0/24	AS7979	🇳🇱NL	assigned
170.23.158.0/24	AS7979	🇺🇸US	assigned
170.23.159.0/24	AS7979	🇺🇸US	assigned
170.23.160.0/22		🇳🇱NL	assigned
170.23.164.0/22		🇳🇱NL	assigned
170.23.168.0/22		🇳🇱NL	assigned
170.23.172.0/22		🇱🇺LU	assigned
170.23.176.0/22		🇳🇱NL	assigned
170.23.180.0/22		🇳🇱NL	assigned
170.23.184.0/22		🇱🇺LU	assigned
170.23.188.0/22		🇱🇺LU	assigned
170.23.192.0/22		🇳🇱NL	assigned
170.23.196.0/22		🇳🇱NL	assigned
170.23.200.0/22		🇱🇺LU	assigned
170.23.204.0/22		🇱🇺LU	assigned
170.23.208.0/22		🇳🇱NL	assigned
170.23.212.0/24	AS7979	🇳🇱NL	assigned
170.23.213.0/24	AS7979	🇳🇱NL	assigned
170.23.214.0/24	AS7979	🇳🇱NL	assigned
170.23.215.0/24	AS7979	🇳🇱NL	assigned
170.23.216.0/22		🇺🇸US	assigned
170.23.220.0/22		🇺🇸US	assigned
170.23.224.0/22		🇺🇸US	assigned
170.23.228.0/22		🇺🇸US	assigned
170.23.232.0/22		🇳🇱NL	assigned
170.23.236.0/22		🇳🇱NL	assigned
170.23.240.0/22		🇳🇱NL	assigned
170.23.244.0/22		🇳🇱NL	assigned
170.23.248.0/22		🇳🇱NL	assigned
170.23.252.0/22		🇳🇱NL	assigned

Transfer History

Registry transfers of 170.23.128.0/17, blocks inside it, or blocks containing it.

170.23.128.0/17inter-RIRTransfer · 2025-05-07
Cartus Corporation
🇺🇸 US ARIN
→
Servers.com B.V.
RIPE NCC
170.23.0.0/16M&A · 2020-04-16
Realogy Group LLC
🇺🇸 US ARIN
→
Cartus Corporation
🇺🇸 US ARIN

Date	Resource	From	To	Type
2025-05-07	170.23.128.0/17inter-RIR	Cartus Corporation 🇺🇸 US ARIN	Servers.com B.V. RIPE NCC	Transfer
2020-04-16	170.23.0.0/16	Realogy Group LLC 🇺🇸 US ARIN	Cartus Corporation 🇺🇸 US ARIN	M&A

Origin ASN

AS61107

Geolocation

Country🇳🇱The NetherlandsNL

RegionNorth Holland

CityAmsterdam (Amsterdam-Zuidoost)

Coordinates52.3098, 4.9353 ↗

Abuse Contact

Learn more

RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
RPKI validatorCheck ROA coverage for any prefix or ASN
What is BGP?How prefixes are announced and routed
More-specific prefixesGlossary: covering and more-specific routes
IPv4 transfers in the RIPE NCC regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/170.23.128.0/17

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/170.23.128.0/17" | jq

External Links

RIPEstat