[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Apr 15 18:11:07 UTC 2016


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,
SAFNOG, PaNOG, SdNOG, BJNOG, CaribNOG and the RIPE Routing WG.

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 16 Apr, 2016

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

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

BGP routing table entries examined:                              590122
    Prefixes after maximum aggregation (per Origin AS):          217231
    Deaggregation factor:                                          2.72
    Unique aggregates announced (without unneeded subnets):      288719
Total ASes present in the Internet Routing Table:                 53427
    Prefixes per ASN:                                             11.05
Origin-only ASes present in the Internet Routing Table:           36609
Origin ASes announcing only one prefix:                           15715
Transit ASes present in the Internet Routing Table:                6422
Transit-only ASes present in the Internet Routing Table:            169
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      41
    Max AS path prepend of ASN ( 55644)                              36
Prefixes from unregistered ASNs in the Routing Table:               966
    Unregistered ASNs in the Routing Table:                         358
Number of 32-bit ASNs allocated by the RIRs:                      13487
Number of 32-bit ASNs visible in the Routing Table:               10396
Prefixes from 32-bit ASNs in the Routing Table:                   40624
Number of bogon 32-bit ASNs visible in the Routing Table:            13
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            388
Number of addresses announced to Internet:                   2807919940
    Equivalent to 167 /8s, 93 /16s and 117 /24s
    Percentage of available address space announced:               75.8
    Percentage of allocated address space announced:               75.8
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               98.1
Total number of prefixes smaller than registry allocations:      193326

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

Prefixes being announced by APNIC Region ASes:                   150247
    Total APNIC prefixes after maximum aggregation:               42132
    APNIC Deaggregation factor:                                    3.57
Prefixes being announced from the APNIC address blocks:          160679
    Unique aggregates announced from the APNIC address blocks:    65668
APNIC Region origin ASes present in the Internet Routing Table:    5167
    APNIC Prefixes per ASN:                                       31.10
APNIC Region origin ASes announcing only one prefix:               1184
APNIC Region transit ASes present in the Internet Routing Table:    912
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         41
Number of APNIC region 32-bit ASNs visible in the Routing Table:   2000
Number of APNIC addresses announced to Internet:              752212548
    Equivalent to 44 /8s, 213 /16s and 218 /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:                    180699
    Total ARIN prefixes after maximum aggregation:                89549
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           185776
    Unique aggregates announced from the ARIN address blocks:     88178
ARIN Region origin ASes present in the Internet Routing Table:    16390
    ARIN Prefixes per ASN:                                        11.33
ARIN Region origin ASes announcing only one prefix:                5863
ARIN Region transit ASes present in the Internet Routing Table:    1716
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          37
Number of ARIN region 32-bit ASNs visible in the Routing Table:    1133
Number of ARIN addresses announced to Internet:              1101654336
    Equivalent to 65 /8s, 169 /16s and 233 /24s
    Percentage of available ARIN address space announced:          58.3

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:                    142165
    Total RIPE prefixes after maximum aggregation:                70048
    RIPE Deaggregation factor:                                     2.03
Prefixes being announced from the RIPE address blocks:           150969
    Unique aggregates announced from the RIPE address blocks:     92852
RIPE Region origin ASes present in the Internet Routing Table:    18064
    RIPE Prefixes per ASN:                                         8.36
RIPE Region origin ASes announcing only one prefix:                7900
RIPE Region transit ASes present in the Internet Routing Table:    3001
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    4649
Number of RIPE addresses announced to Internet:               704560256
    Equivalent to 41 /8s, 254 /16s and 188 /24s
    Percentage of available RIPE address space announced:         102.4

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:                   62059
    Total LACNIC prefixes after maximum aggregation:              12263
    LACNIC Deaggregation factor:                                   5.06
Prefixes being announced from the LACNIC address blocks:          76192
    Unique aggregates announced from the LACNIC address blocks:   35932
LACNIC Region origin ASes present in the Internet Routing Table:   2472
    LACNIC Prefixes per ASN:                                      30.82
LACNIC Region origin ASes announcing only one prefix:               582
LACNIC Region transit ASes present in the Internet Routing Table:   557
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        22
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  2409
Number of LACNIC addresses announced to Internet:             170805824
    Equivalent to 10 /8s, 46 /16s and 74 /24s
    Percentage of available LACNIC address space announced:       101.8

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:                  14252
    Total AfriNIC prefixes after maximum aggregation:              3198
    AfriNIC Deaggregation factor:                                  4.46
Prefixes being announced from the AfriNIC address blocks:         16118
    Unique aggregates announced from the AfriNIC address blocks:   5740
AfriNIC Region origin ASes present in the Internet Routing Table:   743
    AfriNIC Prefixes per ASN:                                     21.69
AfriNIC Region origin ASes announcing only one prefix:              186
AfriNIC Region transit ASes present in the Internet Routing Table:  173
Average AfriNIC Region AS path length visible:                      4.6
    Max AfriNIC Region AS path length visible:                       21
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  205
Number of AfriNIC addresses announced to Internet:             78315008
    Equivalent to 4 /8s, 170 /16s and 254 /24s
    Percentage of available AfriNIC address space announced:       77.8

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     5591       4192          76   China Education and Research 
 7545     3269        353         203   TPG Telecom Limited
 4766     3159      11145        1119   Korea Telecom
17974     2919        914          96   PT Telekomunikasi Indonesia
 9829     2481       1457         447   National Internet Backbone
 4755     2096        432         241   TATA Communications formerly 
 9808     1843       8717          30   Guangdong Mobile Communicatio
 4808     1658       2300         539   CNCGROUP IP network China169 
 9583     1507        121         563   Sify Limited
38197     1474         91         207   Sun Network (Hong Kong) Limit

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     3312       2948         143   Cox Communications Inc.
 6389     2320       3687          42   BellSouth.net Inc.
18566     2209        394         276   MegaPath Corporation
20115     1924       1937         404   Charter Communications
30036     1747        343         279   Mediacom Communications Corp
 6983     1690        849         231   EarthLink, Inc.
 4323     1566       1004         384   tw telecom holdings, inc.
  209     1549       4620        1232   Qwest Communications Company,
  701     1294      10686         702   MCI Communications Services, 
11492     1281        240         602   CABLE ONE, INC.

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     2708        143          10   SaudiNet, Saudi Telecom Compa
20940     2408        915        1751   Akamai International B.V.
34984     1964        323         414   TELLCOM ILETISIM HIZMETLERI A
 8551     1606        376          55   Bezeq International-Ltd
 6849     1152        355          21   JSC "Ukrtelecom"
12479     1151        981          86   France Telecom Espana SA
13188     1079         98          68   TOV "Bank-Inform"
 8402     1051        544          15   OJSC "Vimpelcom"
31148     1035         47          41   Freenet Ltd.
 9198      941        352          25   JSC Kazakhtelecom

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     3441        538         188   Telmex Colombia S.A.
 8151     2219       3318         543   Uninet S.A. de C.V.
 7303     1512        940         241   Telecom Argentina S.A.
11830     1477        368          51   Instituto Costarricense de El
 6503     1434        453          56   Axtel, S.A.B. de C.V.
 6147     1057        377          27   Telefonica del Peru S.A.A.
 3816      995        478         185   COLOMBIA TELECOMUNICACIONES S
26615      995       2325          34   Tim Celular S.A.
 7738      987       1882          40   Telemar Norte Leste S.A.
28573      881       2177         159   NET Serviços de Comunicação 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
24863     1231        402          40   Link Egypt (Link.NET)
37611      646         48           2   Afrihost-Brevis Computer Serv
36903      587        295         101   Office National des Postes et
 8452      559       1472          15   TE-AS
36992      509       1357          25   ETISALAT MISR
37492      394        234          67   Orange Tunisie
24835      329        210          13   Vodafone Data
29571      281         37          12   Cote d'Ivoire Telecom
 2018      256        327          74   TENET (The UNINET Project)
36947      234        807          13   Telecom Algeria

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     5591       4192          76   China Education and Research 
10620     3441        538         188   Telmex Colombia S.A.
22773     3312       2948         143   Cox Communications Inc.
 7545     3269        353         203   TPG Telecom Limited
 4766     3159      11145        1119   Korea Telecom
17974     2919        914          96   PT Telekomunikasi Indonesia
39891     2708        143          10   SaudiNet, Saudi Telecom Compa
 9829     2481       1457         447   National Internet Backbone
20940     2408        915        1751   Akamai International B.V.
 6389     2320       3687          42   BellSouth.net Inc.

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      3441        3253      Telmex Colombia S.A.
22773      3312        3169      Cox Communications Inc.
 7545      3269        3066      TPG Telecom Limited
17974      2919        2823      PT Telekomunikasi Indonesia
39891      2708        2698      SaudiNet, Saudi Telecom Compa
 6389      2320        2278      BellSouth.net Inc.
 4766      3159        2040      Korea Telecom
 9829      2481        2034      National Internet Backbone
18566      2209        1933      MegaPath Corporation
 4755      2096        1855      TATA Communications formerly 

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
53506   UNALLOCATED  8.17.102.0/23         3356       Level 3 Communicatio
46467   UNALLOCATED  8.19.192.0/24        46887       Lightower Fiber Netw
16589   UNALLOCATED  8.20.247.0/24        35838       CCANET Limited
16589   UNALLOCATED  8.26.56.0/24         35838       CCANET Limited
46473   UNALLOCATED  8.27.122.0/24         3356       Level 3 Communicatio
46473   UNALLOCATED  8.27.124.0/24         3356       Level 3 Communicatio
27205   UNALLOCATED  8.38.16.0/21          3356       Level 3 Communicatio
27205   UNALLOCATED  8.38.20.0/24         32787       Prolexic Technologie
27205   UNALLOCATED  8.38.22.0/24         32787       Prolexic Technologie

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
27.100.7.0/24        56096     >>UNKNOWN<<
41.73.1.0/24         37004     >>UNKNOWN<<
41.73.2.0/24         37004     >>UNKNOWN<<
41.73.3.0/24         37004     >>UNKNOWN<<
41.73.4.0/24         37004     >>UNKNOWN<<
41.73.5.0/24         37004     >>UNKNOWN<<
41.73.6.0/24         37004     >>UNKNOWN<<
41.73.7.0/24         37004     >>UNKNOWN<<

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        /8:16       /9:13      /10:36      /11:101     /12:267     
/13:512     /14:1030    /15:1758    /16:12968   /17:7585    /18:12769   
/19:25869   /20:38183   /21:39943   /22:65247   /23:56880   /24:325249  
/25:556     /26:598     /27:420     /28:43      /29:32      /30:14      
/31:1       /32:32      

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

  ASN   No of nets  Total ann.   Description
39891     2664          2708      SaudiNet, Saudi Telecom Compa
22773     2495          3312      Cox Communications Inc.
18566     2111          2209      MegaPath Corporation
30036     1562          1747      Mediacom Communications Corp
 6389     1485          2320      BellSouth.net Inc.
10620     1346          3441      Telmex Colombia S.A.
 6983     1340          1690      EarthLink, Inc.
34984     1249          1964      TELLCOM ILETISIM HIZMETLERI A
11492     1183          1281      CABLE ONE, INC.
 8551     1103          1606      Bezeq International-Ltd

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

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

   1:1585      2:730       4:21        5:2058      6:28        8:950    
  12:1775     13:39       14:1673     15:45       16:2        17:79     
  18:87       20:48       23:1462     24:1778     27:2268     31:1748   
  32:57       33:2        34:2        35:5        36:283      37:2258   
  38:1212     39:24       40:87       41:2768     42:395      43:1708   
  44:42       45:1799     46:2507     47:74       49:1140     50:840    
  51:14       52:144      54:221      55:3        56:6        57:45     
  58:1533     59:867      60:346      61:1810     62:1489     63:1917   
  64:4471     65:2144     66:4273     67:2155     68:1087     69:3249   
  70:1060     71:468      72:1984     74:2545     75:339      76:418    
  77:1371     78:1265     79:1029     80:1316     81:1350     82:931    
  83:688      84:820      85:1574     86:467      87:1037     88:560    
  89:1971     90:167      91:6040     92:867      93:2321     94:2315   
  95:2291     96:476      97:359      98:943      99:45      100:72     
 101:1026    103:10417   104:2371    105:149     106:397     107:1096   
 108:683     109:2291    110:1244    111:1655    112:958     113:1166   
 114:1045    115:1556    116:1609    117:1431    118:2025    119:1593   
 120:521     121:1163    122:2223    123:2011    124:1566    125:1753   
 128:702     129:377     130:411     131:1319    132:621     133:174    
 134:450     135:123     136:373     137:354     138:1712    139:248    
 140:374     141:464     142:655     143:893     144:628     145:162    
 146:856     147:688     148:1469    149:500     150:653     151:753    
 152:608     153:269     154:599     155:949     156:491     157:476    
 158:345     159:1104    160:459     161:744     162:2280    163:534    
 164:753     165:1044    166:312     167:1099    168:1730    169:638    
 170:1572    171:272     172:526     173:1697    174:731     175:722    
 176:1678    177:3984    178:2211    179:1151    180:2068    181:1743   
 182:1905    183:689     184:794     185:6207    186:3131    187:2108   
 188:2124    189:1754    190:7714    191:1218    192:8939    193:5726   
 194:4365    195:3767    196:1722    197:1089    198:5554    199:5661   
 200:6924    201:3724    202:10173   203:9618    204:4653    205:2714   
 206:3013    207:3101    208:4047    209:3791    210:3920    211:2012   
 212:2663    213:2189    214:843     215:72      216:5776    217:1924   
 218:765     219:562     220:1672    221:857     222:659     223:971    


End of report


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