Autonomous system
AS12491 GILAT-TELECOM-LTD
Unclassified RIPE NCC
Summary
Gilat Telecom
isp transit backbone
An Israeli carrier whose IPv6 announcements double in size, block after block, tiling a /38 exactly.
What it's used for
- Internet access and transit. 45,824 addresses in 79 IPv4 prefixes, 28 IPv6 prefixes, and 128 observed BGP neighbours.
Notable
- The IPv6 prefixes run
2a02:ba0::/47,2a02:ba0:2::/47, then/46,/45,/44,/43,/42,/41,/40,/39— each one twice the size of the last. - Added together, those ten blocks cover
2a02:ba0::/38with nothing left over and nothing overlapping. - Several netnames read
IL-IPPLANET-20001218andIL-IPPLANET-20021004, naming a company that is not the current holder. - Reverse names are the address itself with the domain appended:
62.56.130.0.gilat.net.
Interesting
- That doubling ladder is what you get when a range is expressed as CIDR blocks starting from an address that is not aligned to its own size. Each step covers what is left, and each step can be twice the previous one, so the arithmetic produces a staircase. It is the most legible piece of binary in this entire dataset.
- IPPlanet was the satellite broadband business Gilat ran before the telecoms arm took the name, and the netnames still carry it with the dates the blocks were issued. Two of them are 2000 and 2002, which is the satellite era preserved in a database.
- Writing the address forwards in the reverse name, rather than backwards as the zone file has it, means somebody wrote a generator that flips it back. Most do not bother.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 2 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.197.74 |
| Uganda Internet Exchange | Kampala, Uganda | 196.223.25.59 |
Transit providers
21 upstream, 11 downstream and 54 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 77 prefixes · 45.06K addresses IPv6 28 prefixes
| Country | Name | Prefixes |
|---|---|---|
| IL | Israel | 105 |
Registry
Allocation record
- Registry
- RIPE NCC
- Registered
- 1999-06-14
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 222 valid, 0 with no ROA
- ROAs
- 463 authorising AS12491
- ASPA
- no ASPA record
- IRR
- 100% registered · 222 of 222 announcements
- Route objects
- 762 naming AS12491
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,768 prefixes, as published 2026-10-12. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere