[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Mar 25 18:10:29 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 26 Mar, 2016

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

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

BGP routing table entries examined:                              587515
    Prefixes after maximum aggregation (per Origin AS):          216203
    Deaggregation factor:                                          2.72
    Unique aggregates announced (without unneeded subnets):      287784
Total ASes present in the Internet Routing Table:                 53221
    Prefixes per ASN:                                             11.04
Origin-only ASes present in the Internet Routing Table:           36607
Origin ASes announcing only one prefix:                           15753
Transit ASes present in the Internet Routing Table:                6412
Transit-only ASes present in the Internet Routing Table:            170
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      37
    Max AS path prepend of ASN ( 40285)                              34
Prefixes from unregistered ASNs in the Routing Table:               958
    Unregistered ASNs in the Routing Table:                         354
Number of 32-bit ASNs allocated by the RIRs:                      13208
Number of 32-bit ASNs visible in the Routing Table:               10202
Prefixes from 32-bit ASNs in the Routing Table:                   39714
Number of bogon 32-bit ASNs visible in the Routing Table:            14
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            363
Number of addresses announced to Internet:                   2807921668
    Equivalent to 167 /8s, 93 /16s and 124 /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:      191954

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

Prefixes being announced by APNIC Region ASes:                   150519
    Total APNIC prefixes after maximum aggregation:               41895
    APNIC Deaggregation factor:                                    3.59
Prefixes being announced from the APNIC address blocks:          160568
    Unique aggregates announced from the APNIC address blocks:    65534
APNIC Region origin ASes present in the Internet Routing Table:    5145
    APNIC Prefixes per ASN:                                       31.21
APNIC Region origin ASes announcing only one prefix:               1180
APNIC Region transit ASes present in the Internet Routing Table:    909
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         35
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1945
Number of APNIC addresses announced to Internet:              752726596
    Equivalent to 44 /8s, 221 /16s and 178 /24s
    Percentage of available APNIC address space announced:         88.0

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:                    179920
    Total ARIN prefixes after maximum aggregation:                88981
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           184947
    Unique aggregates announced from the ARIN address blocks:     87842
ARIN Region origin ASes present in the Internet Routing Table:    16404
    ARIN Prefixes per ASN:                                        11.27
ARIN Region origin ASes announcing only one prefix:                5887
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:    1089
Number of ARIN addresses announced to Internet:              1101648192
    Equivalent to 65 /8s, 169 /16s and 209 /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:                    141408
    Total RIPE prefixes after maximum aggregation:                69947
    RIPE Deaggregation factor:                                     2.02
Prefixes being announced from the RIPE address blocks:           149984
    Unique aggregates announced from the RIPE address blocks:     92642
RIPE Region origin ASes present in the Internet Routing Table:    18070
    RIPE Prefixes per ASN:                                         8.30
RIPE Region origin ASes announcing only one prefix:                7924
RIPE Region transit ASes present in the Internet Routing Table:    2990
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          27
Number of RIPE region 32-bit ASNs visible in the Routing Table:    4592
Number of RIPE addresses announced to Internet:               704189824
    Equivalent to 41 /8s, 249 /16s and 21 /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:                   61729
    Total LACNIC prefixes after maximum aggregation:              12154
    LACNIC Deaggregation factor:                                   5.08
Prefixes being announced from the LACNIC address blocks:          75724
    Unique aggregates announced from the LACNIC address blocks:   35785
LACNIC Region origin ASes present in the Internet Routing Table:   2472
    LACNIC Prefixes per ASN:                                      30.63
LACNIC Region origin ASes announcing only one prefix:               582
LACNIC Region transit ASes present in the Internet Routing Table:   555
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        22
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  2382
Number of LACNIC addresses announced to Internet:             171034112
    Equivalent to 10 /8s, 49 /16s and 198 /24s
    Percentage of available LACNIC address space announced:       101.9

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:                  14146
    Total AfriNIC prefixes after maximum aggregation:              3185
    AfriNIC Deaggregation factor:                                  4.44
Prefixes being announced from the AfriNIC address blocks:         15929
    Unique aggregates announced from the AfriNIC address blocks:   5656
AfriNIC Region origin ASes present in the Internet Routing Table:   732
    AfriNIC Prefixes per ASN:                                     21.76
AfriNIC Region origin ASes announcing only one prefix:              180
AfriNIC Region transit ASes present in the Internet Routing Table:  166
Average AfriNIC Region AS path length visible:                      4.6
    Max AfriNIC Region AS path length visible:                       18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  194
Number of AfriNIC addresses announced to Internet:             77962752
    Equivalent to 4 /8s, 165 /16s and 158 /24s
    Percentage of available AfriNIC address space announced:       77.4

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     5594       4192          76   China Education and Research 
 7545     3211        352         187   TPG Telecom Limited
 4766     3146      11142        1117   Korea Telecom
17974     2917        914          96   PT Telekomunikasi Indonesia
 9829     2395       1448         427   National Internet Backbone
 4755     2099        432         245   TATA Communications formerly 
 9808     1858       8717          30   Guangdong Mobile Communicatio
 4808     1641       2288         524   CNCGROUP IP network China169 
 4788     1527        645          62   TM Net, Internet Service Prov
 9583     1519        121         564   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     3347       2948         145   Cox Communications Inc.
 6389     2357       3687          42   BellSouth.net Inc.
18566     2209        394         275   MegaPath Corporation
20115     1921       1931         400   Charter Communications
30036     1723        341         282   Mediacom Communications Corp
 6983     1689        849         231   EarthLink, Inc.
 4323     1573       1004         386   tw telecom holdings, inc.
  209     1549       4635        1232   Qwest Communications Company,
  701     1387      11446         663   MCI Communications Services, 
11492     1277        236         589   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     2515        135           9   SaudiNet, Saudi Telecom Compa
20940     2395        919        1741   Akamai International B.V.
34984     1960        323         414   TELLCOM ILETISIM HIZMETLERI A
 8551     1260        376          54   Bezeq International-Ltd
 6849     1158        355          21   JSC "Ukrtelecom"
12479     1147        980          86   France Telecom Espana SA
 8402     1131        544          15   OJSC "Vimpelcom"
13188     1077         98          78   TOV "Bank-Inform"
31148     1040         47          41   Freenet Ltd.
 9198      921        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     3439        540         160   Telmex Colombia S.A.
 8151     2211       3418         541   Uninet S.A. de C.V.
 7303     1522        940         245   Telecom Argentina S.A.
11830     1441        366          25   Instituto Costarricense de El
 6503     1432        453          56   Axtel, S.A.B. de C.V.
 6147     1041        377          27   Telefonica del Peru S.A.A.
26615      995       2325          34   Tim Celular S.A.
 3816      994        478         185   COLOMBIA TELECOMUNICACIONES S
 7738      992       1882          41   Telemar Norte Leste S.A.
28573      892       2171         158   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     1240        403          36   Link Egypt (Link.NET)
 8452      668       1472          15   TE-AS
37611      646         48           2   Afrihost-Brevis Computer Serv
36903      584        294         104   Office National des Postes et
36992      506       1357          25   ETISALAT MISR
37492      380        233          65   Orange Tunisie
24835      339        146          12   Vodafone Data
29571      278         37          12   Cote d'Ivoire Telecom
 2018      250        327          74   TENET (The UNINET Project)
36947      232        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     5594       4192          76   China Education and Research 
10620     3439        540         160   Telmex Colombia S.A.
22773     3347       2948         145   Cox Communications Inc.
 7545     3211        352         187   TPG Telecom Limited
 4766     3146      11142        1117   Korea Telecom
17974     2917        914          96   PT Telekomunikasi Indonesia
39891     2515        135           9   SaudiNet, Saudi Telecom Compa
 9829     2395       1448         427   National Internet Backbone
20940     2395        919        1741   Akamai International B.V.
 6389     2357       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      3439        3279      Telmex Colombia S.A.
22773      3347        3202      Cox Communications Inc.
 7545      3211        3024      TPG Telecom Limited
17974      2917        2821      PT Telekomunikasi Indonesia
39891      2515        2506      SaudiNet, Saudi Telecom Compa
 6389      2357        2315      BellSouth.net Inc.
 4766      3146        2029      Korea Telecom
 9829      2395        1968      National Internet Backbone
18566      2209        1934      MegaPath Corporation
 4755      2099        1854      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         2828       XO Communications
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
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
27.100.7.0/24        56096     >>UNKNOWN<<
37.46.10.0/23        36351     SoftLayer Technologies Inc.
37.46.14.0/24        36351     SoftLayer Technologies Inc.
37.46.15.0/24        36351     SoftLayer Technologies Inc.
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<<

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     
/13:513     /14:1032    /15:1768    /16:12975   /17:7578    /18:12696   
/19:25816   /20:38153   /21:40031   /22:64976   /23:56380   /24:323558  
/25:543     /26:593     /27:398     /28:20      /29:17      /30:11      
/31:0       /32:24      

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

  ASN   No of nets  Total ann.   Description
22773     2526          3347      Cox Communications Inc.
39891     2472          2515      SaudiNet, Saudi Telecom Compa
18566     2111          2209      MegaPath Corporation
30036     1537          1723      Mediacom Communications Corp
 6389     1499          2357      BellSouth.net Inc.
 6983     1338          1689      EarthLink, Inc.
10620     1332          3439      Telmex Colombia S.A.
34984     1245          1960      TELLCOM ILETISIM HIZMETLERI A
11492     1183          1277      CABLE ONE, INC.
 6849      976          1158      JSC "Ukrtelecom"

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

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

   1:1645      2:738       4:20        5:2052      6:27        8:927    
  12:1776     13:38       14:1649     15:45       16:2        17:74     
  18:20       20:49       23:1429     24:1775     27:2273     31:1761   
  32:54       33:2        34:2        35:5        36:256      37:2242   
  38:1179     39:27       40:87       41:2773     42:387      43:1691   
  44:41       45:1761     46:2468     47:73       49:1131     50:839    
  51:8        52:142      54:198      55:3        56:6        57:45     
  58:1528     59:859      60:570      61:1819     62:1483     63:1908   
  64:4471     65:2165     66:4188     67:2131     68:1101     69:3264   
  70:1046     71:469      72:1977     74:2550     75:339      76:414    
  77:1336     78:1304     79:849      80:1331     81:1363     82:939    
  83:685      84:805      85:1591     86:468      87:1022     88:561    
  89:1949     90:168      91:6050     92:850      93:2302     94:2353   
  95:2275     96:462      97:355      98:955      99:45      100:70     
 101:1025    103:10098   104:2331    105:152     106:400     107:1071   
 108:672     109:2133    110:1267    111:1641    112:955     113:1136   
 114:1040    115:1693    116:1541    117:1419    118:2153    119:1572   
 120:515     121:1174    122:2220    123:2004    124:1618    125:1753   
 128:722     129:380     130:411     131:1302    132:619     133:177    
 134:448     135:122     136:353     137:332     138:1726    139:213    
 140:251     141:470     142:636     143:862     144:601     145:161    
 146:843     147:645     148:1471    149:479     150:652     151:826    
 152:606     153:272     154:545     155:946     156:489     157:447    
 158:346     159:1100    160:437     161:737     162:2303    163:548    
 164:749     165:1039    166:313     167:1089    168:1635    169:626    
 170:1577    171:271     172:525     173:1676    174:720     175:919    
 176:1533    177:3998    178:2241    179:1109    180:2049    181:1703   
 182:1950    183:680     184:793     185:6044    186:3059    187:2090   
 188:2149    189:1747    190:7667    191:1201    192:8930    193:5724   
 194:4369    195:3774    196:1695    197:1070    198:5518    199:5645   
 200:6956    201:3704    202:10149   203:9629    204:4648    205:2713   
 206:2980    207:3064    208:4053    209:3795    210:3951    211:2039   
 212:2635    213:2182    214:832     215:72      216:5738    217:1920   
 218:761     219:568     220:1674    221:855     222:662     223:950    


End of report



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