[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Sep 11 18:12:31 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 12 Sep, 2015

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

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

BGP routing table entries examined:                              562922
    Prefixes after maximum aggregation (per Origin AS):          210448
    Deaggregation factor:                                          2.67
    Unique aggregates announced (without unneeded subnets):      273421
Total ASes present in the Internet Routing Table:                 51406
    Prefixes per ASN:                                             10.95
Origin-only ASes present in the Internet Routing Table:           36646
Origin ASes announcing only one prefix:                           16108
Transit ASes present in the Internet Routing Table:                6404
Transit-only ASes present in the Internet Routing Table:            170
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:              1080
    Unregistered ASNs in the Routing Table:                         411
Number of 32-bit ASNs allocated by the RIRs:                      10940
Number of 32-bit ASNs visible in the Routing Table:                8356
Prefixes from 32-bit ASNs in the Routing Table:                   31443
Number of bogon 32-bit ASNs visible in the Routing Table:            19
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            438
Number of addresses announced to Internet:                   2808516288
    Equivalent to 167 /8s, 102 /16s and 142 /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:      185904

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

Prefixes being announced by APNIC Region ASes:                   142701
    Total APNIC prefixes after maximum aggregation:               39688
    APNIC Deaggregation factor:                                    3.60
Prefixes being announced from the APNIC address blocks:          150100
    Unique aggregates announced from the APNIC address blocks:    59677
APNIC Region origin ASes present in the Internet Routing Table:    5093
    APNIC Prefixes per ASN:                                       29.47
APNIC Region origin ASes announcing only one prefix:               1206
APNIC Region transit ASes present in the Internet Routing Table:    892
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:   1618
Number of APNIC addresses announced to Internet:              752237184
    Equivalent to 44 /8s, 214 /16s and 58 /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:                    180262
    Total ARIN prefixes after maximum aggregation:                88353
    ARIN Deaggregation factor:                                     2.04
Prefixes being announced from the ARIN address blocks:           183222
    Unique aggregates announced from the ARIN address blocks:     86012
ARIN Region origin ASes present in the Internet Routing Table:    16575
    ARIN Prefixes per ASN:                                        11.05
ARIN Region origin ASes announcing only one prefix:                6055
ARIN Region transit ASes present in the Internet Routing Table:    1741
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:     661
Number of ARIN addresses announced to Internet:              1117747648
    Equivalent to 66 /8s, 159 /16s and 121 /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:                    135342
    Total RIPE prefixes after maximum aggregation:                67629
    RIPE Deaggregation factor:                                     2.00
Prefixes being announced from the RIPE address blocks:           142286
    Unique aggregates announced from the RIPE address blocks:     88430
RIPE Region origin ASes present in the Internet Routing Table:    17983
    RIPE Prefixes per ASN:                                         7.91
RIPE Region origin ASes announcing only one prefix:                8048
RIPE Region transit ASes present in the Internet Routing Table:    2998
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:    4014
Number of RIPE addresses announced to Internet:               699646848
    Equivalent to 41 /8s, 179 /16s and 195 /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:                   60880
    Total LACNIC prefixes after maximum aggregation:              11656
    LACNIC Deaggregation factor:                                   5.22
Prefixes being announced from the LACNIC address blocks:          72726
    Unique aggregates announced from the LACNIC address blocks:   33618
LACNIC Region origin ASes present in the Internet Routing Table:   2463
    LACNIC Prefixes per ASN:                                      29.53
LACNIC Region origin ASes announcing only one prefix:               605
LACNIC Region transit ASes present in the Internet Routing Table:   525
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:  1917
Number of LACNIC addresses announced to Internet:             168849920
    Equivalent to 10 /8s, 16 /16s and 114 /24s
    Percentage of available LACNIC address space announced:       100.6

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:                  12177
    Total AfriNIC prefixes after maximum aggregation:              3079
    AfriNIC Deaggregation factor:                                  3.95
Prefixes being announced from the AfriNIC address blocks:         14150
    Unique aggregates announced from the AfriNIC address blocks:   5307
AfriNIC Region origin ASes present in the Internet Routing Table:   737
    AfriNIC Prefixes per ASN:                                     19.20
AfriNIC Region origin ASes announcing only one prefix:              194
AfriNIC Region transit ASes present in the Internet Routing Table:  165
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:  146
Number of AfriNIC addresses announced to Internet:             69418240
    Equivalent to 4 /8s, 35 /16s and 61 /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     5581       4192          76   China Education and Research 
 4766     3004      11134         981   Korea Telecom
 7545     2791        339         133   TPG Telecom Limited
17974     2712        908          90   PT Telekomunikasi Indonesia
 4755     2042        427         229   TATA Communications formerly 
 9829     1880       1375         204   National Internet Backbone
 9808     1592       8639          18   Guangdong Mobile Communicatio
 4812     1574       2099         113   China Telecom (Group)
 4808     1527       2254         473   CNCGROUP IP network China169 
 9583     1495        118         559   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     3178       2966         144   Cox Communications Inc.
 6389     2696       3688          51   BellSouth.net Inc.
 3356     2541      10709         503   Level 3 Communications, Inc.
18566     2145        389         257   MegaPath Corporation
20115     1881       1864         395   Charter Communications
 6983     1740        866         244   EarthLink, Inc.
30036     1593        321         399   Mediacom Communications Corp
 4323     1584       1005         404   tw telecom holdings, inc.
  701     1400      11401         676   MCI Communications Services, 
22561     1374        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     2133        847        1536   Akamai International B.V.
34984     2042        306         377   TELLCOM ILETISIM HIZMETLERI A
13188     1071         97          76   TOV "Bank-Inform"
31148     1049         46          23   Freenet Ltd.
 6849     1029        355          21   JSC "Ukrtelecom"
 8402     1015        544          15   OJSC "Vimpelcom"
12479      994        965          78   France Telecom Espana SA
 8551      982        376          52   Bezeq International-Ltd
 6830      915       2694         468   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     3369        539         159   Telmex Colombia S.A.
28573     2266       2170         120   NET Serviços de Comunicação S
 8151     1840       3272         484   Uninet S.A. de C.V.
 7303     1563        934         237   Telecom Argentina S.A.
 6503     1401        429          56   Axtel, S.A.B. de C.V.
26615     1085       2325          35   Tim Celular S.A.
 6147     1062        374          30   Telefonica del Peru S.A.A.
 7738      997       1882          41   Telemar Norte Leste S.A.
 3816      948        436         160   COLOMBIA TELECOMUNICACIONES S
11830      915        364          24   Instituto Costarricense de El

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      914       1470          14   TE-AS
24863      787        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      280        146          12   Vodafone Data
29571      247         21          13   Cote d'Ivoire Telecom
 3741      244        854         200   Internet Solutions
36947      184        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     5581       4192          76   China Education and Research 
10620     3369        539         159   Telmex Colombia S.A.
22773     3178       2966         144   Cox Communications Inc.
 4766     3004      11134         981   Korea Telecom
 7545     2791        339         133   TPG Telecom Limited
17974     2712        908          90   PT Telekomunikasi Indonesia
 6389     2696       3688          51   BellSouth.net Inc.
 3356     2541      10709         503   Level 3 Communications, Inc.
39891     2473        129           7   SaudiNet, Saudi Telecom Compa
28573     2266       2170         120   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      3369        3210      Telmex Colombia S.A.
22773      3178        3034      Cox Communications Inc.
 7545      2791        2658      TPG Telecom Limited
 6389      2696        2645      BellSouth.net Inc.
17974      2712        2622      PT Telekomunikasi Indonesia
39891      2473        2466      SaudiNet, Saudi Telecom Compa
28573      2266        2146      NET Serviços de Comunicação S
 3356      2541        2038      Level 3 Communications, Inc.
 4766      3004        2023      Korea Telecom
18566      2145        1888      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     
/13:500     /14:1005    /15:1739    /16:12905   /17:7389    /18:12574   
/19:26353   /20:37377   /21:39532   /22:61825   /23:53967   /24:304998  
/25:854     /26:928     /27:492     /28:15      /29:14      /30:9       
/31:0       /32:22      

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

  ASN   No of nets  Total ann.   Description
39891     2432          2473      SaudiNet, Saudi Telecom Compa
22773     2388          3178      Cox Communications Inc.
18566     2060          2145      MegaPath Corporation
 6389     1608          2696      BellSouth.net Inc.
30036     1412          1593      Mediacom Communications Corp
 6983     1386          1740      EarthLink, Inc.
34984     1362          2042      TELLCOM ILETISIM HIZMETLERI A
10620     1245          3369      Telmex Colombia S.A.
11492     1134          1217      CABLE ONE, INC.
22561     1047          1374      CenturyTel Internet Holdings,

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

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

   1:1578      2:687       4:97        5:1879      6:25        8:1400   
  12:1812     13:19       14:1427     15:17       16:2        17:50     
  18:22       20:50       23:1269     24:1749     27:2083     31:1605   
  32:37       33:2        34:4        35:3        36:157      37:2040   
  38:1056     39:15       40:71       41:2769     42:343      43:1509   
  44:31       45:1127     46:2351     47:55       49:959      50:801    
  52:22       54:86       55:6        56:28       57:43       58:1411   
  59:770      60:492      61:1792     62:1385     63:1893     64:4403   
  65:2242     66:3994     67:2073     68:1072     69:3238     70:1036   
  71:449      72:1968     74:2577     75:356      76:395      77:1377   
  78:1157     79:813      80:1356     81:1352     82:873      83:725    
  84:764      85:1384     86:457      87:1019     88:535      89:1948   
  90:150      91:5962     92:834      93:2297     94:2089     95:2160   
  96:419      97:348      98:963      99:55      100:77      101:855    
 103:8281    104:2046    105:80      106:347     107:1049    108:626    
 109:2144    110:1207    111:1463    112:825     113:1117    114:852    
 115:1334    116:1450    117:1090    118:1946    119:1475    120:464    
 121:1149    122:2171    123:1851    124:1539    125:1713    128:659    
 129:396     130:430     131:1261    132:535     133:166     134:422    
 135:96      136:346     137:317     138:1238    139:169     140:247    
 141:438     142:680     143:546     144:567     145:126     146:795    
 147:590     148:1268    149:433     150:599     151:795     152:530    
 153:254     154:501     155:876     156:422     157:424     158:345    
 159:1043    160:423     161:672     162:2106    163:461     164:693    
 165:714     166:308     167:867     168:1240    169:196     170:1397   
 171:248     172:269     173:1513    174:715     175:715     176:1463   
 177:3982    178:2197    179:989     180:1960    181:1548    182:1815   
 183:630     184:739     185:4246    186:2973    187:1885    188:2112   
 189:1719    190:7608    191:1155    192:8558    193:5662    194:4246   
 195:3651    196:1963    197:1079    198:5472    199:5517    200:6663   
 201:3249    202:9752    203:9179    204:4626    205:2877    206:3091   
 207:3027    208:3994    209:3918    210:3763    211:2052    212:2566   
 213:2221    214:863     215:74      216:5791    217:1793    218:798    
 219:544     220:1569    221:812     222:721     223:815    

End of report



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