[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Sep 18 18:11:47 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 19 Sep, 2015

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

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

BGP routing table entries examined:                              563409
    Prefixes after maximum aggregation (per Origin AS):          210444
    Deaggregation factor:                                          2.68
    Unique aggregates announced (without unneeded subnets):      274280
Total ASes present in the Internet Routing Table:                 51461
    Prefixes per ASN:                                             10.95
Origin-only ASes present in the Internet Routing Table:           36646
Origin ASes announcing only one prefix:                           16076
Transit ASes present in the Internet Routing Table:                6399
Transit-only ASes present in the Internet Routing Table:            166
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      45
    Max AS path prepend of ASN ( 55644)                              41
Prefixes from unregistered ASNs in the Routing Table:              1072
    Unregistered ASNs in the Routing Table:                         410
Number of 32-bit ASNs allocated by the RIRs:                      11043
Number of 32-bit ASNs visible in the Routing Table:                8416
Prefixes from 32-bit ASNs in the Routing Table:                   31590
Number of bogon 32-bit ASNs visible in the Routing Table:            11
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            427
Number of addresses announced to Internet:                   2809006784
    Equivalent to 167 /8s, 110 /16s and 10 /24s
    Percentage of available address space announced:               75.9
    Percentage of allocated address space announced:               75.9
    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:      186129

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

Prefixes being announced by APNIC Region ASes:                   143038
    Total APNIC prefixes after maximum aggregation:               39757
    APNIC Deaggregation factor:                                    3.60
Prefixes being announced from the APNIC address blocks:          150471
    Unique aggregates announced from the APNIC address blocks:    59807
APNIC Region origin ASes present in the Internet Routing Table:    5093
    APNIC Prefixes per ASN:                                       29.54
APNIC Region origin ASes announcing only one prefix:               1205
APNIC Region transit ASes present in the Internet Routing Table:    893
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         38
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1625
Number of APNIC addresses announced to Internet:              752460032
    Equivalent to 44 /8s, 217 /16s and 161 /24s
    Percentage of available APNIC address space announced:         87.9

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:                    179843
    Total ARIN prefixes after maximum aggregation:                88200
    ARIN Deaggregation factor:                                     2.04
Prefixes being announced from the ARIN address blocks:           182830
    Unique aggregates announced from the ARIN address blocks:     86224
ARIN Region origin ASes present in the Internet Routing Table:    16566
    ARIN Prefixes per ASN:                                        11.04
ARIN Region origin ASes announcing only one prefix:                6045
ARIN Region transit ASes present in the Internet Routing Table:    1736
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          27
Number of ARIN region 32-bit ASNs visible in the Routing Table:     680
Number of ARIN addresses announced to Internet:              1117848512
    Equivalent to 66 /8s, 161 /16s and 3 /24s
    Percentage of available ARIN address space announced:          59.1

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:                    135757
    Total RIPE prefixes after maximum aggregation:                67686
    RIPE Deaggregation factor:                                     2.01
Prefixes being announced from the RIPE address blocks:           142759
    Unique aggregates announced from the RIPE address blocks:     88639
RIPE Region origin ASes present in the Internet Routing Table:    17991
    RIPE Prefixes per ASN:                                         7.94
RIPE Region origin ASes announcing only one prefix:                8035
RIPE Region transit ASes present in the Internet Routing Table:    2989
Average RIPE Region AS path length visible:                         4.9
    Max RIPE Region AS path length visible:                          32
Number of RIPE region 32-bit ASNs visible in the Routing Table:    4030
Number of RIPE addresses announced to Internet:               699655936
    Equivalent to 41 /8s, 179 /16s and 231 /24s
    Percentage of available RIPE address space announced:         101.7

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:                   60899
    Total LACNIC prefixes after maximum aggregation:              11690
    LACNIC Deaggregation factor:                                   5.21
Prefixes being announced from the LACNIC address blocks:          72751
    Unique aggregates announced from the LACNIC address blocks:   33919
LACNIC Region origin ASes present in the Internet Routing Table:   2462
    LACNIC Prefixes per ASN:                                      29.55
LACNIC Region origin ASes announcing only one prefix:               598
LACNIC Region transit ASes present in the Internet Routing Table:   532
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        28
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1932
Number of LACNIC addresses announced to Internet:             168903424
    Equivalent to 10 /8s, 17 /16s and 67 /24s
    Percentage of available LACNIC address space announced:       100.7

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:                  12172
    Total AfriNIC prefixes after maximum aggregation:              3069
    AfriNIC Deaggregation factor:                                  3.97
Prefixes being announced from the AfriNIC address blocks:         14171
    Unique aggregates announced from the AfriNIC address blocks:   5325
AfriNIC Region origin ASes present in the Internet Routing Table:   739
    AfriNIC Prefixes per ASN:                                     19.18
AfriNIC Region origin ASes announcing only one prefix:              193
AfriNIC Region transit ASes present in the Internet Routing Table:  167
Average AfriNIC Region AS path length visible:                      4.6
    Max AfriNIC Region AS path length visible:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  149
Number of AfriNIC addresses announced to Internet:             69462528
    Equivalent to 4 /8s, 35 /16s and 234 /24s
    Percentage of available AfriNIC address space announced:       69.0

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
 4538     5586       4192          76   China Education and Research 
 4766     3005      11134         982   Korea Telecom
 7545     2800        339         134   TPG Telecom Limited
17974     2709        908          90   PT Telekomunikasi Indonesia
 4755     2045        427         228   TATA Communications formerly 
 9829     1909       1383         226   National Internet Backbone
 9808     1601       8639          18   Guangdong Mobile Communicatio
 4812     1574       2099         113   China Telecom (Group)
 4808     1527       2251         476   CNCGROUP IP network China169 
 9583     1498        119         560   Sify Limited

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
22773     3186       2966         144   Cox Communications Inc.
 6389     2696       3688          51   BellSouth.net Inc.
 3356     2537      10710         506   Level 3 Communications, Inc.
18566     2168        392         265   MegaPath Corporation
20115     1882       1867         397   Charter Communications
 6983     1737        866         242   EarthLink, Inc.
30036     1595        321         391   Mediacom Communications Corp
 4323     1587       1005         406   tw telecom holdings, inc.
  701     1400      11401         676   MCI Communications Services, 
22561     1373        415         258   CenturyTel Internet Holdings,

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
39891     2473        129           7   SaudiNet, Saudi Telecom Compa
20940     2141        848        1546   Akamai International B.V.
34984     2048        306         377   TELLCOM ILETISIM HIZMETLERI A
 6849     1208        355          21   JSC "Ukrtelecom"
13188     1071         97          76   TOV "Bank-Inform"
31148     1056         46          24   Freenet Ltd.
 8402     1020        544          15   OJSC "Vimpelcom"
12479      997        965          78   France Telecom Espana SA
 8551      983        376          52   Bezeq International-Ltd
 6830      913       2694         466   Liberty Global Operations B.V

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
10620     3370        539         153   Telmex Colombia S.A.
28573     2255       2167         126   NET Serviços de Comunicação S
 8151     1834       3273         481   Uninet S.A. de C.V.
 7303     1562        936         237   Telecom Argentina S.A.
 6503     1401        445          57   Axtel, S.A.B. de C.V.
26615     1093       2325          35   Tim Celular S.A.
 6147     1059        374          30   Telefonica del Peru S.A.A.
11830      999        364          24   Instituto Costarricense de El
 7738      995       1882          41   Telemar Norte Leste S.A.
 3816      947        436         160   COLOMBIA TELECOMUNICACIONES S

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
 8452      910       1468          10   TE-AS
24863      805        281          37   Link Egypt (Link.NET)
36903      512        258          99   Office National des Postes et
36992      439       1229          32   ETISALAT MISR
37492      315        191          72   Orange Tunisie
24835      283        146          12   Vodafone Data
29571      247         21          13   Cote d'Ivoire Telecom
 3741      226        854         188   Internet Solutions
36947      197        807          13   Telecom Algeria
15706      172         32           6   Sudatel (Sudan Telecom Co. Lt

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
 4538     5586       4192          76   China Education and Research 
10620     3370        539         153   Telmex Colombia S.A.
22773     3186       2966         144   Cox Communications Inc.
 4766     3005      11134         982   Korea Telecom
 7545     2800        339         134   TPG Telecom Limited
17974     2709        908          90   PT Telekomunikasi Indonesia
 6389     2696       3688          51   BellSouth.net Inc.
 3356     2537      10710         506   Level 3 Communications, Inc.
39891     2473        129           7   SaudiNet, Saudi Telecom Compa
28573     2255       2167         126   NET Serviços de Comunicação S

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

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

  ASN   No of nets  Net Savings Description
10620      3370        3217      Telmex Colombia S.A.
22773      3186        3042      Cox Communications Inc.
 7545      2800        2666      TPG Telecom Limited
 6389      2696        2645      BellSouth.net Inc.
17974      2709        2619      PT Telekomunikasi Indonesia
39891      2473        2466      SaudiNet, Saudi Telecom Compa
28573      2255        2129      NET Serviços de Comunicação S
 3356      2537        2031      Level 3 Communications, Inc.
 4766      3005        2023      Korea Telecom
18566      2168        1903      MegaPath Corporation

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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
100.100.1.0/24        9730     Bharti Telesonic Ltd

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

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
27.50.10.0/24        55548     Ravibhawan
27.50.11.0/24        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        /8:18       /9:13      /10:36      /11:95      /12:262     
/13:501     /14:1006    /15:1739    /16:12911   /17:7388    /18:12584   
/19:26323   /20:37370   /21:39522   /22:61863   /23:54132   /24:305312  
/25:852     /26:930     /27:493     /28:15      /29:14      /30:9       
/31:0       /32:21      

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

  ASN   No of nets  Total ann.   Description
39891     2432          2473      SaudiNet, Saudi Telecom Compa
22773     2394          3186      Cox Communications Inc.
18566     2075          2168      MegaPath Corporation
 6389     1608          2696      BellSouth.net Inc.
30036     1414          1595      Mediacom Communications Corp
 6983     1386          1737      EarthLink, Inc.
34984     1368          2048      TELLCOM ILETISIM HIZMETLERI A
10620     1246          3370      Telmex Colombia S.A.
11492     1134          1217      CABLE ONE, INC.
22561     1046          1373      CenturyTel Internet Holdings,

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

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

   1:1594      2:688       4:97        5:1879      6:25        8:1395   
  12:1808     13:18       14:1432     15:17       16:2        17:50     
  18:22       20:50       23:1274     24:1740     27:2085     31:1607   
  32:34       33:2        34:4        35:6        36:154      37:2044   
  38:1062     39:15       40:72       41:2784     42:341      43:1517   
  44:31       45:1170     46:2349     47:57       49:992      50:803    
  52:23       54:85       55:6        56:4        57:43       58:1417   
  59:771      60:499      61:1791     62:1418     63:1897     64:4401   
  65:2237     66:3998     67:2074     68:1071     69:3252     70:1041   
  71:450      72:1979     74:2553     75:360      76:396      77:1369   
  78:1171     79:812      80:1357     81:1357     82:874      83:713    
  84:773      85:1388     86:450      87:1022     88:535      89:1932   
  90:149      91:6008     92:843      93:2286     94:2101     95:2161   
  96:434      97:348      98:958      99:55      100:74      101:852    
 103:8305    104:2004    105:76      106:347     107:1048    108:625    
 109:2140    110:1211    111:1456    112:825     113:1113    114:861    
 115:1343    116:1503    117:1097    118:1953    119:1478    120:466    
 121:1149    122:2176    123:1850    124:1545    125:1718    128:663    
 129:392     130:430     131:1257    132:534     133:166     134:421    
 135:103     136:346     137:320     138:1283    139:170     140:247    
 141:438     142:662     143:547     144:570     145:127     146:801    
 147:588     148:1271    149:433     150:601     151:799     152:529    
 153:256     154:498     155:883     156:423     157:422     158:346    
 159:1063    160:424     161:675     162:2126    163:461     164:693    
 165:853     166:302     167:871     168:1251    169:199     170:1399   
 171:251     172:273     173:1514    174:713     175:712     176:1464   
 177:3966    178:2225    179:993     180:1952    181:1550    182:1820   
 183:632     184:742     185:4303    186:2963    187:1856    188:2111   
 189:1683    190:7594    191:1155    192:8540    193:5660    194:4260   
 195:3679    196:1952    197:1080    198:5478    199:5517    200:6676   
 201:3311    202:9778    203:9202    204:4548    205:2738    206:3025   
 207:2996    208:4007    209:3895    210:3748    211:2055    212:2564   
 213:2227    214:864     215:73      216:5756    217:1795    218:796    
 219:532     220:1574    221:821     222:721     223:832    

End of report



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