AS1133 SURF B.V.
AS1133 (UTWENTE-AS) is registered to SURF B.V. in NL, through RIPE. It originates 2 prefixes in the global routing table.
Who holds AS1133
Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.
WHOIS recordRIPE
% This is the RIPE Database query service. % The objects are in RPSL format. % % The RIPE Database is subject to Terms and Conditions. % See https://docs.db.ripe.net/terms-conditions.html % Note: this output has been filtered. % To receive output for a database update, use the "-B" flag. % Information related to 'AS1101 - AS1200' as-block: AS1101 - AS1200 descr: RIPE NCC ASN block remarks: These AS Numbers are assigned to network operators in the RIPE NCC service region. mnt-by: RIPE-NCC-HM-MNT created: 2018-11-22T15:27:09Z last-modified: 2018-11-22T15:27:09Z source: RIPE % Information related to 'AS1133' % Abuse contact for 'AS1133' is 'cert@surfcert.nl' aut-num: AS1133 as-name: UTWENTE-AS descr: University Twente descr: Drienerlolaan 5 descr: P.O. Box 217 descr: NL - 7500 AE Enschede admin-c: Ins20-RIPE tech-c: Ins20-RIPE status: LEGACY mnt-by: SN-LIR-MNT created: 2002-08-21T16:06:37Z last-modified: 2017-06-12T14:47:02Z source: RIPE mnt-by: RIPE-NCC-LEGACY-MNT org: ORG-Sb3-RIPE organisation: ORG-Sb3-RIPE org-name: SURF B.V. country: NL reg-nr: 50277375 org-type: LIR address: P.O. Box 19035 address: 3501 DA address: Utrecht address: NETHERLANDS phone: +31887873000 admin-c: HT3384-RIPE admin-c: MK512-RIPE admin-c: SNS1-RIPE admin-c: WB311-RIPE admin-c: NO17-RIPE admin-c: RS957-RIPE admin-c: JO5863-RIPE admin-c: MM57501-RIPE abuse-c: SNS1-RIPE mnt-ref: RIPE-NCC-HM-MNT mnt-ref: SN-LIR-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: SN-LIR-MNT created: 2004-04-17T11:43:29Z last-modified: 2026-05-13T07:28:31Z source: RIPE # Filtered role: ITBE network services address: P.O. Box 217 address: NL - 7500 AE Enschede address: The Netherlands remarks: For general abuse like spam use the address remarks: abuse@utwente.nl remarks: For security related contacts use the address remarks: security@utwente.nl phone: +31 53 489 2311 admin-c: Ins21-RIPE tech-c: Ins21-RIPE nic-hdl: Ins20-RIPE mnt-by: SN-LIR-MNT created: 2003-11-13T15:29:05Z last-modified: 2003-11-14T11:21:33Z source: RIPE # Filtered % This query was served by the RIPE Database Query Service version 1.124.1 (DEXTER)
What AS1133 announces
Prefixes originated by AS1133 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).
Announced prefixes
Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.
Who AS1133 is reached through
The AS just before AS1133 in the paths our looking glass collectors hold, for 2 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.
Routing registry objects
From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.
| Source | as-name | Maintained by |
|---|---|---|
| RIPE | UTWENTE-AS | SN-LIR-MNT, RIPE-NCC-LEGACY-MNT |
Route objects with origin AS1133: RIPE 4