Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Dec 30 18:01:46 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, 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 31 Dec, 2016

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

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

BGP routing table entries examined:                              626822
    Prefixes after maximum aggregation (per Origin AS):          221601
    Deaggregation factor:                                          2.83
    Unique aggregates announced (without unneeded subnets):      304431
Total ASes present in the Internet Routing Table:                 55506
    Prefixes per ASN:                                             11.29
Origin-only ASes present in the Internet Routing Table:           36264
Origin ASes announcing only one prefix:                           15201
Transit ASes present in the Internet Routing Table:                6538
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:                                      38
    Max AS path prepend of ASN ( 55644)                              36
Prefixes from unregistered ASNs in the Routing Table:                52
    Unregistered ASNs in the Routing Table:                          17
Number of 32-bit ASNs allocated by the RIRs:                      16714
Number of 32-bit ASNs visible in the Routing Table:               12704
Prefixes from 32-bit ASNs in the Routing Table:                   52166
Number of bogon 32-bit ASNs visible in the Routing Table:           656
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            376
Number of addresses announced to Internet:                   2834970340
    Equivalent to 168 /8s, 250 /16s and 54 /24s
    Percentage of available address space announced:               76.6
    Percentage of allocated address space announced:               76.6
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               98.4
Total number of prefixes smaller than registry allocations:      207813

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

Prefixes being announced by APNIC Region ASes:                   156571
    Total APNIC prefixes after maximum aggregation:               43183
    APNIC Deaggregation factor:                                    3.63
Prefixes being announced from the APNIC address blocks:          171063
    Unique aggregates announced from the APNIC address blocks:    70682
APNIC Region origin ASes present in the Internet Routing Table:    5188
    APNIC Prefixes per ASN:                                       32.97
APNIC Region origin ASes announcing only one prefix:               1132
APNIC Region transit ASes present in the Internet Routing Table:    939
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:   2579
Number of APNIC addresses announced to Internet:              761702276
    Equivalent to 45 /8s, 102 /16s and 167 /24s
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, 64297-64395, 131072-137529
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:                    188253
    Total ARIN prefixes after maximum aggregation:                89318
    ARIN Deaggregation factor:                                     2.11
Prefixes being announced from the ARIN address blocks:           195160
    Unique aggregates announced from the ARIN address blocks:     89620
ARIN Region origin ASes present in the Internet Routing Table:    16071
    ARIN Prefixes per ASN:                                        12.14
ARIN Region origin ASes announcing only one prefix:                5598
ARIN Region transit ASes present in the Internet Routing Table:    1707
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          23
Number of ARIN region 32-bit ASNs visible in the Routing Table:    1679
Number of ARIN addresses announced to Internet:              1106805408
    Equivalent to 65 /8s, 248 /16s and 130 /24s
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, 393216-397212
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:                    150572
    Total RIPE prefixes after maximum aggregation:                73138
    RIPE Deaggregation factor:                                     2.06
Prefixes being announced from the RIPE address blocks:           162013
    Unique aggregates announced from the RIPE address blocks:     99014
RIPE Region origin ASes present in the Internet Routing Table:    18145
    RIPE Prefixes per ASN:                                         8.93
RIPE Region origin ASes announcing only one prefix:                7750
RIPE Region transit ASes present in the Internet Routing Table:    3053
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          28
Number of RIPE region 32-bit ASNs visible in the Routing Table:    5103
Number of RIPE addresses announced to Internet:               709633664
    Equivalent to 42 /8s, 76 /16s and 38 /24s
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, 64396-64495
                       196608-207259
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:                   63826
    Total LACNIC prefixes after maximum aggregation:              12660
    LACNIC Deaggregation factor:                                   5.04
Prefixes being announced from the LACNIC address blocks:          80478
    Unique aggregates announced from the LACNIC address blocks:   38041
LACNIC Region origin ASes present in the Internet Routing Table:   2488
    LACNIC Prefixes per ASN:                                      32.35
LACNIC Region origin ASes announcing only one prefix:               552
LACNIC Region transit ASes present in the Internet Routing Table:   591
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        30
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  3059
Number of LACNIC addresses announced to Internet:             170855744
    Equivalent to 10 /8s, 47 /16s and 13 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-266652 + 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:                  15381
    Total AfriNIC prefixes after maximum aggregation:              3294
    AfriNIC Deaggregation factor:                                  4.67
Prefixes being announced from the AfriNIC address blocks:         17732
    Unique aggregates announced from the AfriNIC address blocks:   6730
AfriNIC Region origin ASes present in the Internet Routing Table:   735
    AfriNIC Prefixes per ASN:                                     24.13
AfriNIC Region origin ASes announcing only one prefix:              169
AfriNIC Region transit ASes present in the Internet Routing Table:  183
Average AfriNIC Region AS path length visible:                      4.8
    Max AfriNIC Region AS path length visible:                       18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  284
Number of AfriNIC addresses announced to Internet:             85518848
    Equivalent to 5 /8s, 24 /16s and 234 /24s
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     5550       4190          74   ERX-CERNET-BKB China Education and Rese
 7545     3712        390         250   TPG-INTERNET-AP TPG Telecom Limited, AU
17974     2984        905          71   TELKOMNET-AS2-AP PT Telekomunikasi Indo
 4766     2722      11133         741   KIXS-AS-KR Korea Telecom, KR
 9829     2692       1499         535   BSNL-NIB National Internet Backbone, IN
 9808     2253       8698          33   CMNET-GD Guangdong Mobile Communication
 4755     2043        428         216   TATACOMM-AS TATA Communications formerl
45899     1749       1265          99   VNPT-AS-VN VNPT Corp, VN
 4808     1651       2169         469   CHINA169-BJ China Unicom Beijing Provin
24560     1583        561         242   AIRTELBROADBAND-AS-AP Bharti Airtel Ltd

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     3614       2968         152   ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 6327     3251       1333          82   SHAW - Shaw Communications Inc., CA
18566     2195        405         109   MEGAPATH5-US - MegaPath Corporation, US
 6389     2095       3671          39   BELLSOUTH-NET-BLK - BellSouth.net Inc.,
20115     1956       2021         402   CHARTER-NET-HKY-NC - Charter Communicat
30036     1747        328         398   MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
  209     1731       5066         640   CENTURYLINK-US-LEGACY-QWEST - Qwest Com
 6983     1676        848         227   ITCDELTA - Earthlink, Inc., US
  701     1599      10629         662   UUNET - MCI Communications Services, In
16509     1526       3029         522   AMAZON-02 - Amazon.com, Inc., US

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     3141        163          17   ALJAWWALSTC-AS , SA
20940     2952       1108        2100   AKAMAI-ASN1 , US
 9121     2267       1707          95   TTNET , TR
34984     1993        327         376   TELLCOM-AS , TR
13188     1603         99          61   TRIOLAN , UA
12479     1414       1033          51   UNI2-AS , ES
 6849     1312        355          22   UKRTELNET , UA
 8551     1205        377          46   BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 8402     1128        544          15   CORBINA-AS OJSC "Vimpelcom", RU
12389      996       1156         445   ROSTELECOM-AS , RU

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     3527        543         179   Telmex Colombia S.A., CO
 8151     2483       3370         553   Uninet S.A. de C.V., MX
11830     1799        368          66   Instituto Costarricense de Electricidad
 6503     1544        437          54   Axtel, S.A.B. de C.V., MX
 7303     1522        970         251   Telecom Argentina S.A., AR
 6147     1354        377          27   Telefonica del Peru S.A.A., PE
28573     1050       2271         177   CLARO S.A., BR
 3816     1030        480         193   COLOMBIA TELECOMUNICACIONES S.A. ESP, C
11172      914        126          78   Alestra, S. de R.L. de C.V., MX
18881      879       1036          22   TELEFÔNICA BRASIL S.A, BR

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     1293        398          42   LINKdotNET-AS, EG
36903      687        345         122   MT-MPLS, MA
37611      676         67           6   Afrihost, ZA
36992      579       1373          25   ETISALAT-MISR, EG
24835      492        658          16   RAYA-AS, EG
 8452      485       1474          16   TE-AS TE-AS, EG
37492      396        288          72   ORANGE-TN, TN
29571      368         36          10   CITelecom-AS, CI
15399      314         35           6   WANANCHI-KE, KE
 2018      285        327          74   TENET-1, ZA

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     5550       4190          74   ERX-CERNET-BKB China Education and Rese
 7545     3712        390         250   TPG-INTERNET-AP TPG Telecom Limited, AU
22773     3614       2968         152   ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
10620     3527        543         179   Telmex Colombia S.A., CO
 6327     3251       1333          82   SHAW - Shaw Communications Inc., CA
39891     3141        163          17   ALJAWWALSTC-AS , SA
17974     2984        905          71   TELKOMNET-AS2-AP PT Telekomunikasi Indo
20940     2952       1108        2100   AKAMAI-ASN1 , US
 4766     2722      11133         741   KIXS-AS-KR Korea Telecom, KR
 9829     2692       1499         535   BSNL-NIB National Internet Backbone, IN

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

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

  ASN   No of nets  Net Savings Description
 7545      3712        3462      TPG-INTERNET-AP TPG Telecom Limited, AU
22773      3614        3462      ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
10620      3527        3348      Telmex Colombia S.A., CO
 6327      3251        3169      SHAW - Shaw Communications Inc., CA
39891      3141        3124      ALJAWWALSTC-AS , SA
17974      2984        2913      TELKOMNET-AS2-AP PT Telekomunikasi Indo
 9808      2253        2220      CMNET-GD Guangdong Mobile Communication
 9121      2267        2172      TTNET , TR
 9829      2692        2157      BSNL-NIB National Internet Backbone, IN
18566      2195        2086      MEGAPATH5-US - MegaPath Corporation, US

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

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

Bad AS  Designation  Network              Transit AS  Description
65001   PRIVATE      5.143.176.0/20       15468       KLGELECS-AS 38, Teatralnaya st
65001   PRIVATE      31.172.192.0/20      15468       KLGELECS-AS 38, Teatralnaya st
65001   PRIVATE      31.172.192.0/21      15468       KLGELECS-AS 38, Teatralnaya st
65001   PRIVATE      31.172.200.0/21      15468       KLGELECS-AS 38, Teatralnaya st
65001   PRIVATE      31.172.208.0/21      15468       KLGELECS-AS 38, Teatralnaya st
65001   PRIVATE      31.172.216.0/21      15468       KLGELECS-AS 38, Teatralnaya st
65000   PRIVATE      31.219.177.0/25       8966       ETISALAT-AS P.O. Box 1150, Dub
65000   PRIVATE      31.219.177.128/25     8966       ETISALAT-AS P.O. Box 1150, Dub
65001   PRIVATE      46.237.32.0/20       13118       ASN-YARTELECOM PJSC Rostelecom
65001   PRIVATE      94.242.128.0/20      15468       KLGELECS-AS 38, Teatralnaya st

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

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

Network            Origin AS  Description
14.128.12.0/22       55763     UNKNOWN
14.128.12.0/24       55763     UNKNOWN
14.128.13.0/24       55763     UNKNOWN
14.128.15.0/24       55763     UNKNOWN
27.100.7.0/24        56096     UNKNOWN
41.62.1.0/24         19136     NNET, ZA
41.73.16.0/24        37004     Suburban-Broadband-AS, NG
41.73.17.0/24        37004     Suburban-Broadband-AS, NG
41.73.18.0/24        37004     Suburban-Broadband-AS, NG
41.73.19.0/24        37004     Suburban-Broadband-AS, NG

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      /11:103     /12:276     
/13:530     /14:1049    /15:1801    /16:13173   /17:7811    /18:13022   
/19:25260   /20:38054   /21:40602   /22:73135   /23:61420   /24:349161  
/25:548     /26:411     /27:312     /28:29      /29:16      /30:17      
/31:0       /32:27      

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

  ASN   No of nets  Total ann.   Description
 6327     3047          3251      SHAW - Shaw Communications Inc., CA
39891     2896          3141      ALJAWWALSTC-AS , SA
22773     2815          3614      ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
18566     2088          2195      MEGAPATH5-US - MegaPath Corporation, US
 9121     1576          2267      TTNET , TR
30036     1559          1747      MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
10620     1446          3527      Telmex Colombia S.A., CO
 6389     1393          2095      BELLSOUTH-NET-BLK - BellSouth.net Inc.,
13188     1348          1603      TRIOLAN , UA
 6983     1323          1676      ITCDELTA - Earthlink, Inc., US

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

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

   1:1585      2:820       4:23        5:2416      6:32        8:1023   
  12:1811     13:65       14:1780     15:24       16:2        17:104    
  18:124      19:1        20:51       23:2003     24:1802     27:2400   
  31:1839     32:83       33:11       34:1        35:3        36:376    
  37:2479     38:1301     39:44       40:99       41:2969     42:455    
  43:1908     44:52       45:2283     46:2530     47:120      49:1201   
  50:951      51:15       52:616      54:355      55:7        56:4      
  57:40       58:1599     59:975      60:388      61:1863     62:1498   
  63:1926     64:4538     65:2177     66:4393     67:2215     68:1167   
  69:3293     70:1303     71:560      72:2058     74:2594     75:404    
  76:412      77:1419     78:1574     79:915      80:1360     81:1420   
  82:967      83:722      84:862      85:1689     86:487      87:1129   
  88:782      89:2050     90:196      91:6099     92:967      93:2373   
  94:2350     95:2767     96:564      97:359      98:945      99:93     
 100:148     101:1200    103:13120   104:2632    105:146     106:474    
 107:1499    108:774     109:2540    110:1280    111:1659    112:1131   
 113:1172    114:1004    115:1634    116:1680    117:1569    118:2112   
 119:1590    120:942     121:1074    122:2282    123:2005    124:1599   
 125:1828    128:709     129:481     130:432     131:1388    132:622    
 133:187     134:528     135:210     136:385     137:393     138:1819   
 139:452     140:621     141:474     142:723     143:895     144:752    
 145:168     146:965     147:647     148:1364    149:559     150:683    
 151:798     152:703     153:313     154:720     155:950     156:545    
 157:564     158:427     159:1343    160:564     161:732     162:2452   
 163:535     164:778     165:1139    166:361     167:1234    168:2459   
 169:721     170:2519    171:264     172:865     173:1827    174:781    
 175:718     176:1751    177:4184    178:2423    179:1156    180:2063   
 181:1946    182:2163    183:1012    184:837     185:8343    186:3218   
 187:2244    188:2330    189:1780    190:7983    191:1294    192:9295   
 193:5768    194:4557    195:3859    196:1866    197:1244    198:5590   
 199:5818    200:7226    201:4142    202:10137   203:9822    204:4462   
 205:2771    206:2971    207:3170    208:4018    209:3899    210:3907   
 211:2079    212:2786    213:2453    214:847     215:66      216:5767   
 217:1974    218:824     219:600     220:1668    221:895     222:727    
 223:1103   

End of report


More information about the NANOG mailing list