[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jul 26 18:03:58 UTC 2019


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, SANOG, PacNOG, SAFNOG
TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG 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 27 Jul, 2019

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

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

BGP routing table entries examined:                              762538
    Prefixes after maximum aggregation (per Origin AS):          294776
    Deaggregation factor:                                          2.59
    Unique aggregates announced (without unneeded subnets):      368584
Total ASes present in the Internet Routing Table:                 65002
    Prefixes per ASN:                                             11.73
Origin-only ASes present in the Internet Routing Table:           55882
Origin ASes announcing only one prefix:                           23956
Transit ASes present in the Internet Routing Table:                9120
Transit-only ASes present in the Internet Routing Table:            282
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      42
    Max AS path prepend of ASN ( 27978)                              31
Prefixes from unregistered ASNs in the Routing Table:                24
    Number of instances of unregistered ASNs:                        24
Number of 32-bit ASNs allocated by the RIRs:                      28019
Number of 32-bit ASNs visible in the Routing Table:               22875
Prefixes from 32-bit ASNs in the Routing Table:                  103520
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:            236
Number of addresses announced to Internet:                   2842092800
    Equivalent to 169 /8s, 102 /16s and 229 /24s
    Percentage of available address space announced:               76.8
    Percentage of allocated address space announced:               76.8
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.3
Total number of prefixes smaller than registry allocations:      253604

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

Prefixes being announced by APNIC Region ASes:                   205999
    Total APNIC prefixes after maximum aggregation:               61645
    APNIC Deaggregation factor:                                    3.34
Prefixes being announced from the APNIC address blocks:          201357
    Unique aggregates announced from the APNIC address blocks:    84412
APNIC Region origin ASes present in the Internet Routing Table:    9928
    APNIC Prefixes per ASN:                                       20.28
APNIC Region origin ASes announcing only one prefix:               2741
APNIC Region transit ASes present in the Internet Routing Table:   1490
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         27
Number of APNIC region 32-bit ASNs visible in the Routing Table:   4925
Number of APNIC addresses announced to Internet:              770811392
    Equivalent to 45 /8s, 241 /16s and 166 /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, 131072-141625
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:                    226807
    Total ARIN prefixes after maximum aggregation:               106000
    ARIN Deaggregation factor:                                     2.14
Prefixes being announced from the ARIN address blocks:           225724
    Unique aggregates announced from the ARIN address blocks:    107079
ARIN Region origin ASes present in the Internet Routing Table:    18529
    ARIN Prefixes per ASN:                                        12.18
ARIN Region origin ASes announcing only one prefix:                6860
ARIN Region transit ASes present in the Internet Routing Table:    1915
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          42
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2825
Number of ARIN addresses announced to Internet:              1070904448
    Equivalent to 63 /8s, 212 /16s and 180 /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, 393216-399260
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,  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:                    210755
    Total RIPE prefixes after maximum aggregation:               100036
    RIPE Deaggregation factor:                                     2.11
Prefixes being announced from the RIPE address blocks:           207001
    Unique aggregates announced from the RIPE address blocks:    123449
RIPE Region origin ASes present in the Internet Routing Table:    26286
    RIPE Prefixes per ASN:                                         7.87
RIPE Region origin ASes announcing only one prefix:               11623
RIPE Region transit ASes present in the Internet Routing Table:    3752
Average RIPE Region AS path length visible:                         4.6
    Max RIPE Region AS path length visible:                          35
Number of RIPE region 32-bit ASNs visible in the Routing Table:    8331
Number of RIPE addresses announced to Internet:               720794240
    Equivalent to 42 /8s, 246 /16s and 114 /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
                       196608-210331
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:                   98293
    Total LACNIC prefixes after maximum aggregation:              22726
    LACNIC Deaggregation factor:                                   4.33
Prefixes being announced from the LACNIC address blocks:          99562
    Unique aggregates announced from the LACNIC address blocks:   43931
LACNIC Region origin ASes present in the Internet Routing Table:   8657
    LACNIC Prefixes per ASN:                                      11.50
LACNIC Region origin ASes announcing only one prefix:              2275
LACNIC Region transit ASes present in the Internet Routing Table:  1595
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        39
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  6209
Number of LACNIC addresses announced to Internet:             173525248
    Equivalent to 10 /8s, 87 /16s and 201 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-270748 + 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:                  20659
    Total AfriNIC prefixes after maximum aggregation:              4349
    AfriNIC Deaggregation factor:                                  4.75
Prefixes being announced from the AfriNIC address blocks:         28658
    Unique aggregates announced from the AfriNIC address blocks:   9501
AfriNIC Region origin ASes present in the Internet Routing Table:  1305
    AfriNIC Prefixes per ASN:                                     21.96
AfriNIC Region origin ASes announcing only one prefix:              457
AfriNIC Region transit ASes present in the Internet Routing Table:  253
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       27
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  585
Number of AfriNIC addresses announced to Internet:            105820416
    Equivalent to 6 /8s, 78 /16s and 177 /24s
AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8,  45/8, 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
  7545         4862        591     567  TPG-INTERNET-AP TPG Telecom Limited, AU
  7552         3178       1459      31  VIETEL-AS-AP Viettel Group, VN
 45899         3053       1764     110  VNPT-AS-VN VNPT Corp, VN
  9808         2750       9043      63  CMNET-GD Guangdong Mobile Communication
  9829         2694       1489     562  BSNL-NIB National Internet Backbone, IN
  4766         2542      11119     761  KIXS-AS-KR Korea Telecom, KR
  7713         2226        670     591  TELKOMNET-AS-AP PT Telekomunikasi Indon
  4755         2158        429     190  TATACOMM-AS TATA Communications formerl
  9498         2130        430     200  BBIL-AP BHARTI Airtel Ltd., IN
  9394         2072       4898      24  CTTNET China TieTong Telecommunications

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
  7155         4064        280      25  VIASAT-SP-BACKBONE - ViaSat,Inc., US
 11492         3681        240     615  CABLEONE - CABLE ONE, INC., US
  6327         3564       1324      90  SHAW - Shaw Communications Inc., CA
 22773         3445       2974     156  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 16509         3044       6390    1430  AMAZON-02 - Amazon.com, Inc., US
 16625         2627       1380    1908  AKAMAI-AS - Akamai Technologies, Inc., 
 30036         2163        347     245  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 20115         2151       2763     524  CHARTER-20115 - Charter Communications,
 18566         2094        405     107  MEGAPATH5-US - MegaPath Corporation, US
  5650         2077       3073    1452  FRONTIER-FRTR - Frontier Communications

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
 12479         5507       1629     141  UNI2-AS, ES
 39891         3780        219      19  ALJAWWALSTC-AS, SA
  8551         3326        379      46  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940         2696        506    1920  AKAMAI-ASN1, US
 12389         2358       2230     661  ROSTELECOM-AS, RU
 34984         2115        346     547  TELLCOM-AS, TR
  9009         1658        178     896  M247, GB
  9121         1609       1692      18  TTNET, TR
 13188         1604        100      47  TRIOLAN, UA
 61317         1411        147     527  ASDETUK http://www.heficed.com, GB

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
  8151         6258       3376     592  Uninet S.A. de C.V., MX
 10620         3396        536     428  Telmex Colombia S.A., CO
 11830         2688        370      54  Instituto Costarricense de Electricidad
  6503         1624        391     419  Axtel, S.A.B. de C.V., MX
  7303         1474       1022     281  Telecom Argentina S.A., AR
 28573         1152       2227     205  CLARO S.A., BR
  6147         1096        377      31  Telefonica del Peru S.A.A., PE
  3816         1045        526     118  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 13999          985        480     248  Mega Cable, S.A. de C.V., MX
 11172          934        112      60  Alestra, S. de R.L. de C.V., MX

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         1183        393      21  LINKdotNET-AS, EG
 24835          886        634      22  RAYA-AS, EG
 36903          843        424     112  MT-MPLS, MA
 36992          819       1532      87  ETISALAT-MISR, EG
  8452          674       1859      20  TE-AS TE-AS, EG
 29571          520         68      11  ORANGE-COTE-IVOIRE, CI
 37492          482        470      57  ORANGE-, TN
 37342          414         32       1  MOVITEL, MZ
 15399          384         45      11  WANANCHI-, KE
 23889          358        231      15  MauritiusTelecom, MU

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
  8151         6258       3376     592  Uninet S.A. de C.V., MX
 12479         5507       1629     141  UNI2-AS, ES
  7545         4862        591     567  TPG-INTERNET-AP TPG Telecom Limited, AU
  7155         4064        280      25  VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891         3780        219      19  ALJAWWALSTC-AS, SA
 11492         3681        240     615  CABLEONE - CABLE ONE, INC., US
  6327         3564       1324      90  SHAW - Shaw Communications Inc., CA
 22773         3445       2974     156  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 10620         3396        536     428  Telmex Colombia S.A., CO
  8551         3326        379      46  BEZEQ-INTERNATIONAL-AS Bezeqint Interne

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

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

  ASN   No of nets  Net Savings  Description
 12479       5507         5366   UNI2-AS, ES
  7545       4862         4295   TPG-INTERNET-AP TPG Telecom Limited, AU
  7155       4064         4039   VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891       3780         3761   ALJAWWALSTC-AS, SA
  6327       3564         3474   SHAW - Shaw Communications Inc., CA
 22773       3445         3289   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  8551       3326         3280   BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  7552       3178         3147   VIETEL-AS-AP Viettel Group, VN
 11492       3681         3066   CABLEONE - CABLE ONE, INC., US
 10620       3396         2968   Telmex Colombia S.A., CO

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

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

Bad AS    Designation  Network              Transit AS  Description
 230105   UNALLOCATED  38.110.79.0/24       23015       CMC180-TOR-AS - Cambridge Merc
 260984   UNALLOCATED  45.175.186.0/23      16735       ALGAR TELECOM S/A, BR
 266842   UNALLOCATED  45.238.156.0/22     265680       HNTELCO S.A, HN
  64511   DOCUMENT     66.154.208.0/21      32522       MULTNOMAH-ESD - Multnomah Educ
  64511   DOCUMENT     66.154.216.0/23      32522       MULTNOMAH-ESD - Multnomah Educ
  64511   DOCUMENT     66.154.218.0/24      32522       MULTNOMAH-ESD - Multnomah Educ
  65550   DOCUMENT     81.8.34.0/24         15924       BORUSANTELEKOM-AS, TR
  65550   DOCUMENT     81.8.35.0/24         15924       BORUSANTELEKOM-AS, TR
  65549   DOCUMENT     117.239.163.0/24     65544       UNKNOWN
  64339   UNALLOCATED  143.0.108.0/22       18747       IFX18747 - IFX Corporation, US

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

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

Network            Origin AS  Description
27.100.7.0/24        56096    UNKNOWN
27.126.156.0/22      55827    UNKNOWN
27.126.156.0/23      55827    UNKNOWN
27.126.158.0/23      55827    UNKNOWN
36.255.24.0/24       40676    AS40676 - Psychz Networks, US
36.255.25.0/24       40676    AS40676 - Psychz Networks, US
36.255.26.0/24       40676    AS40676 - Psychz Networks, US
36.255.27.0/24       40676    AS40676 - Psychz Networks, US
41.76.136.0/22       37500    -Reserved AS-, ZZ
41.76.140.0/22       37500    -Reserved AS-, ZZ

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        /8:10       /9:11      /10:38      /11:100     /12:294     
/13:569     /14:1130    /15:1900    /16:13257   /17:8030    /18:13913   
/19:25827   /20:40388   /21:47231   /22:95528   /23:77194   /24:436220  
/25:898     /26:0       /27:0       /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN   No of nets  Total ann.  Description
 12479     4452          5507    UNI2-AS, ES
  6327     3353          3564    SHAW - Shaw Communications Inc., CA
  7155     3156          4064    VIASAT-SP-BACKBONE - ViaSat,Inc., US
 39891     2946          3780    ALJAWWALSTC-AS, SA
 11492     2885          3681    CABLEONE - CABLE ONE, INC., US
  8551     2779          3326    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773     2677          3445    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 11830     2036          2688    Instituto Costarricense de Electricidad y Telec
 18566     1989          2094    MEGAPATH5-US - MegaPath Corporation, US
 30036     1914          2163    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi

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

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

   1:1713      2:1071      3:6         4:21        5:3086      6:47     
   7:1         8:1340      9:1        12:1804     13:388      14:2078   
  15:41       16:7        17:259      18:80       20:56       23:2827   
  24:2588     25:4        27:2440     31:2012     32:106      35:38     
  36:883      37:3103     38:1796     39:294      40:121      41:3194   
  42:828      43:2076     44:157      45:9145     46:3362     47:265    
  49:1363     50:1105     51:337      52:1010     54:273      55:676    
  56:6        57:47       58:1746     59:1096     60:558      61:2179   
  62:1970     63:1854     64:5011     65:2227     66:4823     67:2770   
  68:1177     69:3577     70:1384     71:659      72:2652     74:2726   
  75:1295     76:571      77:1802     78:1869     79:2368     80:1840   
  81:1497     82:1142     83:945      84:1148     85:2307     86:547    
  87:1537     88:1047     89:2554     90:212      91:6595     92:1442   
  93:2472     94:2489     95:3333     96:948      97:340      98:962    
  99:806     100:88      101:1186    102:589     103:21776   104:3626   
 105:278     106:805     107:1783    108:696     109:3790    110:1731   
 111:2015    112:1535    113:1399    114:1277    115:1729    116:1756   
 117:1948    118:2183    119:1650    120:1056    121:1063    122:2281   
 123:1796    124:1502    125:2028    128:1365    129:848     130:549    
 131:1824    132:791     133:221     134:1087    135:251     136:589    
 137:789     138:2095    139:896     140:614     141:890     142:781    
 143:1083    144:877     145:276     146:1301    147:838     148:1756   
 149:1001    150:784     151:1015    152:1101    153:341     154:4416   
 155:892     156:1755    157:1052    158:690     159:1947    160:1601   
 161:957     162:2974    163:829     164:1249    165:1171    166:519    
 167:1423    168:3483    169:480     170:4207    171:614     172:1689   
 173:2220    174:1040    175:989     176:2444    177:4062    178:2564   
 179:1394    180:2144    181:2347    182:2754    183:1106    184:2281   
 185:15400   186:3664    187:2510    188:2992    189:2014    190:8205   
 191:1461    192:10070   193:6760    194:5524    195:4178    196:3060   
 197:1717    198:5937    199:5978    200:7144    201:5133    202:10403  
 203:10244   204:4549    205:3063    206:3225    207:3256    208:3949   
 209:4292    210:3936    211:2027    212:3133    213:2964    214:1133   
 215:55      216:5911    217:2233    218:883     219:600     220:1921   
 221:970     222:976     223:1396   

End of report


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