Data as of Nov 7, 2026
178.249.152.0/21
No anonymizer space · no proxy exits in 30 daysA2B IP B.V.
Announcement
this exact prefix
RPKI valid
Announced by
Type
Unknown
Risk
40 / 100 · Medium
Leased space
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 178.249.152.0/21 | 2,048 | NL-A2BIP3-20100526 | A2B IP B.V. (ORG-AIB25-RIPE) · NL | ALLOCATED PA | Dec 22, 2022 | abuse@ |
| └ 178.249.152.0/25 | 128 | A2B-FIRST-POST | infra-aw | ASSIGNED PA | May 26, 2010 | abuse@ via NL-A2BIP3-20100526 |
| └ 178.249.152.128/25 | 128 | A2B-FIRST-POST | routing subnets | ASSIGNED PA | Nov 22, 2010 | abuse@ via NL-A2BIP3-20100526 |
| └ 178.249.153.0/24 | 256 | A2B-FIRST-POST | unknown | ASSIGNED PA | May 26, 2010 | abuse@ via NL-A2BIP3-20100526 |
| └ 178.249.154.0/30 | 4 | A2B-ALK-DWVSOL-INFRA | /30 subnet to DWV FW | ASSIGNED PA | Jan 14, 2011 | abuse@ via NL-A2BIP3-20100526 |
| └ 178.249.155.128/26 | 64 | NCA-Online | Shared webhosting VLAN | ASSIGNED PA | Sep 7, 2016 | abuse@ via NL-A2BIP3-20100526 |
| └ 178.249.156.0/26 | 64 | A2B-ALK-DWVSOL | DWV Solutions | ASSIGNED PA | Jul 16, 2010 | abuse@ via NL-A2BIP3-20100526 |
| └ 178.249.156.64/26 | 64 | A2B-ALK-Cloud2 | Cloud2 | ASSIGNED PA | Oct 17, 2012 | abuse@ via NL-A2BIP3-20100526 |
| └ 178.249.157.0/25 | 128 | A2B-ALK-CU4IT | CU4IT | ASSIGNED PA | Nov 22, 2010 | abuse@ via NL-A2BIP3-20100526 |
| └ 178.249.158.0/26 | 64 | A2B-ALK-RNC | RNC | ASSIGNED PA | Nov 22, 2010 | abuse@ via NL-A2BIP3-20100526 |
| └ 178.249.158.128/27 | 32 | A2B-ALK-VDB | VDB Computers | ASSIGNED PA | Dec 7, 2010 | abuse@ via NL-A2BIP3-20100526 |
| └ 178.249.159.0/26 | 64 | A2B-ALK-DH-FAC | Datahouse Alkmaar | ASSIGNED PA | Nov 29, 2010 | abuse@ via NL-A2BIP3-20100526 |
| └ 178. | 33 | A2B-ALK-DH-OFF | Datahouse Alkmaar | ASSIGNED PA | Nov 29, 2010 | abuse@ via NL-A2BIP3-20100526 |
| └ 178.249.159.128/28 | 16 | A2B-ALK-DWV-OFF | DWV Solutions Office Alkmaar | ASSIGNED PA | Jun 4, 2013 | abuse@ via NL-A2BIP3-20100526 |
| └ 178.249.159.144/28 | 16 | A2B-ALK-Camarate | Camarate | ASSIGNED PA | Jun 4, 2013 | abuse@ via NL-A2BIP3-20100526 |
| └ 178.249.159.224/27 | 32 | A2B-ALK-Camarate | Camarate | ASSIGNED PA | Jun 4, 2013 | abuse@ via NL-A2BIP3-20100526 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Origin network
AS51088
NL
- Name
- A2B IP B.V.
- Type
- Internet provider
- Registered
- May 28, 2010
- Domain
- a2b-internet.com
- Website
- www.a2b-internet.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Jul 2010
- Current origin since
- Jul 2010 · 16 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 178.
249. 152. 0/ 21 - Netname
- NL-A2BIP3-20100526
- Registrant
- A2B IP B.V.
- Registrant country
- NL
- Organization
- A2B IP B.V. (ORG-AIB25-RIPE)
- Org country
- NL
- Type
- ALLOCATED PA
- Created
- Dec 22, 2022
- Updated
- Aug 7, 2025
- Maintainer
- A2B-INTERNET-MNT
- RIR
- RIPE NCC
- Country
- NL
- Delegated
- May 26, 2010
- Status
- assigned
Report abuse
Abuse contact
- abuse@
a2b-internet. com - Name
- A2B Internet Role-Object
- Handle
- AS51088-RIPE