[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Sep 4 18:02:07 UTC 2015


This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.

The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG,
CaribNOG and the RIPE Routing Working Group.

Daily listings are sent to bgp-stats at lists.apnic.net

For historical data, please see http://thyme.rand.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.

Routing Table Report   04:00 +10GMT Sat 05 Sep, 2015

Report Website:     http://thyme.rand.apnic.net
Detailed Analysis:  http://thyme.rand.apnic.net/current/

Analysis Summary
----------------

BGP routing table entries examined:                               30167
    Prefixes after maximum aggregation (per Origin AS):           12174
    Deaggregation factor:                                          2.48
    Unique aggregates announced (without unneeded subnets):       10608
Total ASes present in the Internet Routing Table:                  4848
    Prefixes per ASN:                                              6.22
Origin-only ASes present in the Internet Routing Table:            3304
Origin ASes announcing only one prefix:                            2007
Transit ASes present in the Internet Routing Table:                1198
Transit-only ASes present in the Internet Routing Table:            707
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      36
    Max AS path prepend of ASN ( 55644)                              31
Prefixes from unregistered ASNs in the Routing Table:                63
    Unregistered ASNs in the Routing Table:                          45
Number of 32-bit ASNs allocated by the RIRs:                      10864
Number of 32-bit ASNs visible in the Routing Table:                 346
Prefixes from 32-bit ASNs in the Routing Table:                     854
Number of bogon 32-bit ASNs visible in the Routing Table:             0
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:              9
Number of addresses announced to Internet:                    258338464
    Equivalent to 15 /8s, 101 /16s and 238 /24s
    Percentage of available address space announced:                7.0
    Percentage of allocated address space announced:                7.0
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               97.6
Total number of prefixes smaller than registry allocations:        8184

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes:                     8544
    Total APNIC prefixes after maximum aggregation:                1854
    APNIC Deaggregation factor:                                    4.61
Prefixes being announced from the APNIC address blocks:            8266
    Unique aggregates announced from the APNIC address blocks:     3049
APNIC Region origin ASes present in the Internet Routing Table:     501
    APNIC Prefixes per ASN:                                       16.50
APNIC Region origin ASes announcing only one prefix:                125
APNIC Region transit ASes present in the Internet Routing Table:    195
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         36
Number of APNIC region 32-bit ASNs visible in the Routing Table:     27
Number of APNIC addresses announced to Internet:               45189632
    Equivalent to 2 /8s, 177 /16s and 138 /24s
    Percentage of available APNIC address space announced:          5.3

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-64098, 131072-135580
APNIC Address Blocks     1/8,  14/8,  27/8,  36/8,  39/8,  42/8,  43/8,
                        49/8,  58/8,  59/8,  60/8,  61/8, 101/8, 103/8,
                       106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
                       116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
                       123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
                       163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
                       203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
                       222/8, 223/8,

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                     12219
    Total ARIN prefixes after maximum aggregation:                 5908
    ARIN Deaggregation factor:                                     2.07
Prefixes being announced from the ARIN address blocks:            13925
    Unique aggregates announced from the ARIN address blocks:      3821
ARIN Region origin ASes present in the Internet Routing Table:     1960
    ARIN Prefixes per ASN:                                         7.10
ARIN Region origin ASes announcing only one prefix:                1187
ARIN Region transit ASes present in the Internet Routing Table:     355
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          27
Number of ARIN region 32-bit ASNs visible in the Routing Table:      52
Number of ARIN addresses announced to Internet:               168019744
    Equivalent to 10 /8s, 3 /16s and 199 /24s
    Percentage of available ARIN address space announced:           8.9

ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  2138-2584, 2615-2772, 2823-2829, 2880-3153
                       3354-4607, 4865-5119, 5632-6655, 6912-7466
                       7723-8191, 10240-12287, 13312-15359, 16384-17407
                       18432-20479, 21504-23551, 25600-26591,
                       26624-27647, 29696-30719, 31744-33791
                       35840-36863, 39936-40959, 46080-47103
                       53248-55295, 62464-63487, 64198-64296, 393216-395164
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  23/8,  24/8,  26/8,  28/8,
                        29/8,  30/8,  32/8,  33/8,  34/8,  35/8,  38/8,
                        40/8,  44/8,  45/8,  47/8,  48/8,  50/8,  52/8,
                        53/8,  54/8,  55/8,  56/8,  57/8,  63/8,  64/8,
                        65/8,  66/8,  67/8,  68/8,  69/8,  70/8,  71/8,
                        72/8,  73/8,  74/8,  75/8,  76/8,  96/8,  97/8,
                        98/8,  99/8, 100/8, 104/8, 107/8, 108/8, 128/8,
                       129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
                       137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
                       146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
                       157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
                       165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
                       173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8,
                       205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8,
                       216/8,

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                      8462
    Total RIPE prefixes after maximum aggregation:                 3532
    RIPE Deaggregation factor:                                     2.40
Prefixes being announced from the RIPE address blocks:             7958
    Unique aggregates announced from the RIPE address blocks:      3730
RIPE Region origin ASes present in the Internet Routing Table:     1307
    RIPE Prefixes per ASN:                                         6.09
RIPE Region origin ASes announcing only one prefix:                 688
RIPE Region transit ASes present in the Internet Routing Table:     548
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          27
Number of RIPE region 32-bit ASNs visible in the Routing Table:     265
Number of RIPE addresses announced to Internet:                45053568
    Equivalent to 2 /8s, 175 /16s and 118 /24s
    Percentage of available RIPE address space announced:           6.5

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
                       40960-45055, 47104-52223, 56320-58367
                       59392-61439, 61952-62463, 196608-204287
RIPE Address Blocks      2/8,   5/8,  25/8,  31/8,  37/8,  46/8,  51/8,
                        62/8,  77/8,  78/8,  79/8,  80/8,  81/8,  82/8,
                        83/8,  84/8,  85/8,  86/8,  87/8,  88/8,  89/8,
                        90/8,  91/8,  92/8,  93/8,  94/8,  95/8, 109/8,
                       141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
                       193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                      67
    Total LACNIC prefixes after maximum aggregation:                 53
    LACNIC Deaggregation factor:                                   1.26
Prefixes being announced from the LACNIC address blocks:              9
    Unique aggregates announced from the LACNIC address blocks:       1
LACNIC Region origin ASes present in the Internet Routing Table:     16
    LACNIC Prefixes per ASN:                                       0.56
LACNIC Region origin ASes announcing only one prefix:                 5
LACNIC Region transit ASes present in the Internet Routing Table:    16
Average LACNIC Region AS path length visible:                       3.9
    Max LACNIC Region AS path length visible:                         8
Number of LACNIC region 32-bit ASNs visible in the Routing Table:     2
Number of LACNIC addresses announced to Internet:                 65536
    Equivalent to 0 /8s, 1 /16s and 0 /24s
    Percentage of available LACNIC address space announced:         0.0

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-265628 + ERX transfers
LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                       191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes:                     16
    Total AfriNIC prefixes after maximum aggregation:                10
    AfriNIC Deaggregation factor:                                  1.60
Prefixes being announced from the AfriNIC address blocks:             0
    Unique aggregates announced from the AfriNIC address blocks:      0
AfriNIC Region origin ASes present in the Internet Routing Table:     6
    AfriNIC Prefixes per ASN:                                      0.00
AfriNIC Region origin ASes announcing only one prefix:                2
AfriNIC Region transit ASes present in the Internet Routing Table:    3
Average AfriNIC Region AS path length visible:                      3.9
    Max AfriNIC Region AS path length visible:                        5
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    0
Number of AfriNIC addresses announced to Internet:                    0
    Equivalent to 0 /8s, 0 /16s and 0 /24s
    Percentage of available AfriNIC address space announced:        0.0

AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7545      979         99           7   TPG Telecom Limited
45528      578         31          32   Tikona Digital Networks Pvt L
 7552      310        256           1   Viettel Corporation
 9605      265        200          96   NTT DoCoMo, Inc.
24378      264         32           1   Total Access Communication PL
17488      247         61          37   Hathway IP Over Cable Interne
 4755      223         64           2   TATA Communications formerly 
45769      210         13          73   D-Vois Broadband Pvt Ltd
45899      198        259          24   VNNIC
17841      171         12          11   MIC E-GOVERNMENT

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3356     1310       8207          19   Level 3 Communications, Inc.
16625      485        282         347   Akamai Technologies, Inc.
20115      390        350          96   Charter Communications
11492      382         42         205   CABLE ONE, INC.
 2386      325         48         282   AT&T Data Communications Serv
  714      284       4096           1   Apple Inc.
22773      259        170          15   Cox Communications Inc.
62823      255         16          10   Puerto Rico Cable Acquisition
15003      179        228          27   Nobis Technology Group, LLC
10796      167        214          86   Time Warner Cable Internet LL

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
20940      987        469         689   Akamai International B.V.
 8402      514         64           1   OJSC "Vimpelcom"
39891      514         32           2   SaudiNet, Saudi Telecom Compa
 9198      234        103           9   JSC Kazakhtelecom
48159      228        131         108   Telecommunication Infrastruct
 3257      181        105         145   Tinet SpA
12586      133         42           6   GHOSTnet GmbH
51074      120         76          24   GOSTARESH-E-ERTEBATAT-E MABNA
44244       99        256           6   Iran Cell Service and Communi
35819       94        125          35   Bayanat Al-Oula For Network S

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151       11          8          11   Uninet S.A. de C.V.
10318        9         16           1   CABLEVISION S.A.
28573        9          5           7   NET Serviços de Comunicação S
18734        6          4           5   Operbes, S.A. de C.V.
27810        5          2           5   MERCANET LTDA
 6057        4          2           4   Administracion Nacional de Te
10481        4          2           4   Prima S.A.
11271        4          2           4   BT Latam Brasil Ltda
14178        4          2           3   Megacable Comunicaciones de M
27814        4          2           3   Aeprovi

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741        4          1           1   Internet Solutions
 5713        4          1           1   Telkom SA Ltd.
24835        4          2           4   Vodafone Data
37457        2          1           2   Telkom SA Ltd.
 8452        1          1           1   TE-AS
37284        1          0           1   Aljeel Aljadeed For Technolog

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3356     1310       8207          19   Level 3 Communications, Inc.
20940      987        469         689   Akamai International B.V.
 7545      979         99           7   TPG Telecom Limited
45528      578         31          32   Tikona Digital Networks Pvt L
 8402      514         64           1   OJSC "Vimpelcom"
39891      514         32           2   SaudiNet, Saudi Telecom Compa
16625      485        282         347   Akamai Technologies, Inc.
20115      390        350          96   Charter Communications
11492      382         42         205   CABLE ONE, INC.
 2386      325         48         282   AT&T Data Communications Serv

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

  ASN   No of nets  Net Savings Description
 7545       979         972      TPG Telecom Limited
45528       578         546      Tikona Digital Networks Pvt L
 8402       514         513      OJSC "Vimpelcom"
39891       514         512      SaudiNet, Saudi Telecom Compa
 7552       310         309      Viettel Corporation
20940       987         298      Akamai International B.V.
20115       390         294      Charter Communications
  714       284         283      Apple Inc.
24378       264         263      Total Access Communication PL
62823       255         245      Puerto Rico Cable Acquisition

Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS  Designation  Network              Transit AS  Description
30662   UNALLOCATED  8.2.129.0/24          3356       Level 3 Communicatio
47092   UNALLOCATED  8.8.204.0/24         16410       The Reynolds and Rey
53506   UNALLOCATED  8.17.102.0/23         2828       XO Communications
46467   UNALLOCATED  8.19.192.0/24        46887       Lightower Fiber Netw
18985   UNALLOCATED  8.21.68.0/22          3356       Level 3 Communicatio
46473   UNALLOCATED  8.27.122.0/24        12180       Internap Network Ser
46473   UNALLOCATED  8.27.124.0/24        12180       Internap Network Ser
27205   UNALLOCATED  8.38.16.0/21          6461       Abovenet Communicati
15347   UNALLOCATED  8.224.147.0/24       12064       Cox Communications I
33628   UNALLOCATED  12.0.239.0/24         1239       Sprint

Complete listing at http://thyme.rand.apnic.net/current/data-badAS

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
23.226.112.0/20      62788     >>UNKNOWN<<
23.249.144.0/20      40430     colo4jax, LLC
23.249.144.0/21      40430     colo4jax, LLC
23.249.152.0/21      40430     colo4jax, LLC
27.50.8.0/24         55548     Ravibhawan
27.50.9.0/24         55548     Ravibhawan
27.50.10.0/23        55548     Ravibhawan
27.100.7.0/24        56096     >>UNKNOWN<<
31.170.96.0/23       23456     32bit Transition AS

Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:8        /9:8       /10:0       /11:7       /12:20      
/13:53      /14:67      /15:101     /16:435     /17:313     /18:632     
/19:1181    /20:3313    /21:2434    /22:2977    /23:3260    /24:15338   
/25:8       /26:7       /27:3       /28:2       /29:0       /30:0       
/31:0       /32:0       

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

  ASN   No of nets  Total ann.   Description
39891      512           514      SaudiNet, Saudi Telecom Compa
 8402      509           514      OJSC "Vimpelcom"
11492      379           382      CABLE ONE, INC.
62823      255           255      Puerto Rico Cable Acquisition
22773      212           259      Cox Communications Inc.
20115      171           390      Charter Communications
 9198      144           234      JSC Kazakhtelecom
40285      128           131      NORTHLAND CABLE TELEVISION IN
48159      125           228      Telecommunication Infrastruct
12586      107           133      GHOSTnet GmbH

Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

   1:1574      2:688       4:97        5:1879      6:25        8:1400   
  11:1        12:1809     13:19       14:1414     15:17       16:2      
  17:49       18:22       20:49       23:1269     24:1752     27:2080   
  31:1192   

End of report



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