Data as of Nov 8, 2026
37.157.128.0/21
No anonymizer space · no proxy exits in 30 daysHolon SAS
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 |
|---|---|---|---|---|---|---|
| 37.157.128.0/21 | 2,048 | FR-ODENA-20120315 | Holon SAS (ORG-OS303-RIPE) · FR | ALLOCATED PA | Mar 15, 2012 | abuse@ |
| └ 37.157.128.0/24 | 256 | NET-IZZYCOM | FTTx and xDSL | ASSIGNED PA | Apr 8, 2012 | abuse@ via FR-ODENA-20120315 |
| └ 37.157.129.0/24 | 256 | NET-IZZYCOM | hosting | ASSIGNED PA | Oct 12, 2017 | abuse@ via FR-ODENA-20120315 |
| └ 37.157.130.16/30 | 4 | IFSI-Quimper | IFSI 1 Rue Etienne Gourmelen | ASSIGNED PA | Sep 26, 2017 | abuse@ via FR-ODENA-20120315 |
| └ 37.157.130.40/29 | 8 | Locarmor | Locarmor 5 Rue Rontgen | ASSIGNED PA | Sep 26, 2017 | abuse@ via FR-ODENA-20120315 |
| └ 37.157.130.56/30 | 4 | CIDEL-Landerneau | CIDEL 5 Rue Ingénieur Jacques Frimot | ASSIGNED PA | Sep 26, 2017 | abuse@ via FR-ODENA-20120315 |
| └ 37.157.130.60/30 | 4 | AcoFunki-Landerneau | AcoFunki 5 Rue Ingénieur Jacques Frimot | ASSIGNED PA | Sep 26, 2017 | abuse@ via FR-ODENA-20120315 |
| └ 37.157.130.68/30 | 4 | BretagneMultiEnergies | BretagneMultiEnergies 42 Rue Jacques Anquetil | ASSIGNED PA | Sep 26, 2017 | abuse@ via FR-ODENA-20120315 |
| └ 37.157.130.84/30 | 4 | Pecheurs-de-Bretagne | Les Pecheurs de Bretagne 7 rue Félix Le Dantec 29000 QUIMPER | ASSIGNED PA | Sep 30, 2017 | abuse@ via FR-ODENA-20120315 |
| └ 37.157.130.100/30 | 4 | Socogec | Socogec 3 Rue Félix le Dantec | ASSIGNED PA | Sep 30, 2017 | abuse@ via FR-ODENA-20120315 |
| └ 37.157.130.112/30 | 4 | CTS-Concept | CTS Concept 11 Rue Lavoisier | ASSIGNED PA | Sep 30, 2017 | abuse@ via FR-ODENA-20120315 |
| └ 37.157.130.136/29 | 8 | Kervilly-hyper | Kervilly 150 Route de Brest | ASSIGNED PA | Sep 30, 2017 | abuse@ via FR-ODENA-20120315 |
| └ 37.157.135.192/26 | 64 | NET-IZZYCOM | unknown | ASSIGNED PA | Apr 8, 2012 | abuse@ via FR-ODENA-20120315 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
2,048 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Internet provider | 1,940 | 95% | 9 | |
| Business | 108 | 5.3% | 10 |
Network & registry
Origin network
AS57943
FR
- Name
- Holon SAS
- Type
- Internet provider
- Registered
- Mar 16, 2012
- Domain
- holon.bzh
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Mar 2012
- Current origin since
- Oct 2016 · 10 yr
- Origin networks
- 2
- Last change of origin
- Mar 2012
Recorded history
History
- Handoffs
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS57943 | RIPE | IZZY-MNT | Oct 13, 2017 |
Whois
Registration for this announcement
- Range
- 37.
157. 128. 0/ 21 - Netname
- FR-ODENA-20120315
- Registrant
- Holon SAS
- Registrant country
- FR
- Organization
- Holon SAS (ORG-OS303-RIPE)
- Org country
- FR
- Type
- ALLOCATED PA
- Created
- Mar 15, 2012
- Updated
- Feb 20, 2024
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- FR
- Delegated
- Mar 15, 2012
- Status
- assigned
Report abuse
Abuse contact
- abuse@
odena. net - Name
- Abuse-C Role
- Handle
- AR61211-RIPE