Autonomous system
AS9607 BBTOWER BroadBand Tower, Inc.
Hosting ARIN NSP
Summary
BroadBand Tower, Inc.
hosting legacy
AS9607 (BBTOWER) is held by BroadBand Tower, Inc., a Japanese data-centre and cloud operator. The company runs carrier-neutral colocation facilities in central Tokyo and in Umeda, Osaka, and sells colocation, hosting, managed services and storage to media, gaming and telecoms customers.
What it's used for
The reverse DNS reads like a data-centre inventory rather than an ISP's subscriber pool. Sampled addresses resolve to names such as ethernet1-2.bbfw-01.colo03.bbtower.ne.jp, user.ge-0-0-43.aggr0502.colo05.bbtower.ad.jp and user.ge-0-0-0.medge0901.colo01.bbtower.ad.jp: firewall and aggregation-router interfaces tagged with the site they live in (colo01, colo03, colo05), with user. marking the customer-facing side of the port. Others fall back to the dotted-quad form 208x111x48x5.bbtower.ad.jp. The address footprint fits: 19 IPv4 prefixes for only 31,232 addresses, heavily fragmented into /21s, /22s, /23s and /24s, which is what colocation space looks like when it is carved up per tenant rather than handed out as access pools. The 28 observed BGP neighbours are consistent with a facility operator that peers at Japanese exchanges and buys multiple upstreams to give tenants carrier choice, without itself being a transit carrier.
Notable
208.111.48.0/21is an ARIN-region block sitting inside an otherwise APNIC-region footprint, and it is announced withbbtower.ad.jpPTRs like the rest.- The naming convention
colo0Nin the PTRs directly exposes which of the company's sites a given address is homed to. - Three IPv6 blocks are announced, including
2001:370::/32and2404:c700::/32.
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 5 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| BroadBand Internet eXchange Tokyo | Tokyo, Japan | 101.203.88.104 |
| JPIX Tokyo | Tokyo, Japan | 210.171.224.205 |
| BroadBand Internet eXchange Osaka | Osaka, Japan | 218.100.9.104 |
| JPIX Osaka | Osaka, Japan | 103.246.232.205 |
| Network Service Provider IXP (Distributed IX in Edo) | Tokyo, Japan | 202.249.2.88 |
Transit providers
6 upstream, 16 downstream and 41 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 17 prefixes · 31.74K addresses IPv6 22 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 39 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS9607- Registry name
- BBTower
- Registered
- 1999-08-05
- Last changed
- 2020-10-02
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- BroadBand Tower
- Also known as
- BBTower
- Network type
- NSP
- Scope
- Asia Pacific
- Traffic ratio
- Balanced
- Peering policy
- Selective
- IRR as-set
AS-GCTR-JP- Present at
- 6 exchanges
- Facilities
- 6 facilities
- Website
- https://www.bbtower.co.jp/en/corporate/
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 25 valid, 0 with no ROA
- ROAs
- 27 authorising AS9607
- ASPA
- no ASPA record
- IRR
- 100% registered · 25 of 25 announcements
- Route objects
- 25 naming AS9607
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
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: 432 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