[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Mar 13 18:03:29 UTC 2020


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 14 Mar, 2020

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

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

BGP routing table entries examined:                              799559
    Prefixes after maximum aggregation (per Origin AS):          304239
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      391217
Total ASes present in the Internet Routing Table:                 67362
    Prefixes per ASN:                                             11.87
Origin-only ASes present in the Internet Routing Table:           57867
Origin ASes announcing only one prefix:                           24249
Transit ASes present in the Internet Routing Table:                9495
Transit-only ASes present in the Internet Routing Table:            283
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      36
    Max AS path prepend of ASN (206156)                              26
Prefixes from unregistered ASNs in the Routing Table:              1197
    Number of instances of unregistered ASNs:                      1197
Number of 32-bit ASNs allocated by the RIRs:                      30923
Number of 32-bit ASNs visible in the Routing Table:               25477
Prefixes from 32-bit ASNs in the Routing Table:                  117614
Number of bogon 32-bit ASNs visible in the Routing Table:            14
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:           1126
Number of addresses announced to Internet:                   2852326016
    Equivalent to 170 /8s, 3 /16s and 10 /24s
    Percentage of available address space announced:               77.0
    Percentage of allocated address space announced:               77.0
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.5
Total number of prefixes smaller than registry allocations:      268671

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

Prefixes being announced by APNIC Region ASes:                   211457
    Total APNIC prefixes after maximum aggregation:               61605
    APNIC Deaggregation factor:                                    3.43
Prefixes being announced from the APNIC address blocks:          204378
    Unique aggregates announced from the APNIC address blocks:    85284
APNIC Region origin ASes present in the Internet Routing Table:   10426
    APNIC Prefixes per ASN:                                       19.60
APNIC Region origin ASes announcing only one prefix:               2878
APNIC Region transit ASes present in the Internet Routing Table:   1547
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         35
Number of APNIC region 32-bit ASNs visible in the Routing Table:   5486
Number of APNIC addresses announced to Internet:              766440960
    Equivalent to 45 /8s, 174 /16s and 246 /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:                    234015
    Total ARIN prefixes after maximum aggregation:               107865
    ARIN Deaggregation factor:                                     2.17
Prefixes being announced from the ARIN address blocks:           231510
    Unique aggregates announced from the ARIN address blocks:    117717
ARIN Region origin ASes present in the Internet Routing Table:    18394
    ARIN Prefixes per ASN:                                        12.59
ARIN Region origin ASes announcing only one prefix:                6737
ARIN Region transit ASes present in the Internet Routing Table:    1914
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          22
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3184
Number of ARIN addresses announced to Internet:              1078766848
    Equivalent to 64 /8s, 76 /16s and 173 /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:                    226768
    Total RIPE prefixes after maximum aggregation:               105105
    RIPE Deaggregation factor:                                     2.16
Prefixes being announced from the RIPE address blocks:           223676
    Unique aggregates announced from the RIPE address blocks:    131070
RIPE Region origin ASes present in the Internet Routing Table:    26932
    RIPE Prefixes per ASN:                                         8.31
RIPE Region origin ASes announcing only one prefix:               11733
RIPE Region transit ASes present in the Internet Routing Table:    3820
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9000
Number of RIPE addresses announced to Internet:               724305024
    Equivalent to 43 /8s, 44 /16s and 4 /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:                  104200
    Total LACNIC prefixes after maximum aggregation:              24246
    LACNIC Deaggregation factor:                                   4.30
Prefixes being announced from the LACNIC address blocks:         105492
    Unique aggregates announced from the LACNIC address blocks:   45844
LACNIC Region origin ASes present in the Internet Routing Table:   9575
    LACNIC Prefixes per ASN:                                      11.02
LACNIC Region origin ASes announcing only one prefix:              2420
LACNIC Region transit ASes present in the Internet Routing Table:  1794
Average LACNIC Region AS path length visible:                       5.3
    Max LACNIC Region AS path length visible:                        36
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  7142
Number of LACNIC addresses announced to Internet:             174101760
    Equivalent to 10 /8s, 96 /16s and 149 /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:                  21921
    Total AfriNIC prefixes after maximum aggregation:              4673
    AfriNIC Deaggregation factor:                                  4.69
Prefixes being announced from the AfriNIC address blocks:         33377
    Unique aggregates announced from the AfriNIC address blocks:  10314
AfriNIC Region origin ASes present in the Internet Routing Table:  1375
    AfriNIC Prefixes per ASN:                                     24.27
AfriNIC Region origin ASes announcing only one prefix:              481
AfriNIC Region transit ASes present in the Internet Routing Table:  272
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  665
Number of AfriNIC addresses announced to Internet:            108112128
    Equivalent to 6 /8s, 113 /16s and 169 /24s
AfriNIC AS Blocks      36864-37887, 327680-329727 & 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        5365        671     627  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4624       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3351       1331      24  VIETEL-AS-AP Viettel Group, VN
 45899        3138       1798     106  VNPT-AS-VN VNPT Corp, VN
  7713        2703        831     507  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2572       9043      62  CMNET-GD Guangdong Mobile Communication
  4766        2290      11102     562  KIXS-AS-KR Korea Telecom, KR
  9498        2252        434     222  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2138        441     193  TATACOMM-AS TATA Communications formerl
  9394        2063       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
 11492        4042        270     659  CABLEONE, US
  7155        4034        280      28  VIASAT-SP-BACKBONE, US
 16509        3901       7820    1722  AMAZON-02, US
 22773        3528       2969     146  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3373       1324      92  SHAW, CA
 16625        2995       1571    2146  AKAMAI-AS, US
   209        2391       5076     533  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2311        358     164  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2292       2941    1632  FRONTIER-FRTR, US
 26484        2181        136     177  IKGUL-26484, 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
 12479        5951       1599     131  UNI2-AS, ES
 31334        4086        484      13  KABELDEUTSCHLAND-AS, DE
 39891        3776        203      20  ALJAWWALSTC-AS, SA
  8551        3295        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        2917        464    2002  AKAMAI-ASN1, US
 12389        2485       2250     727  ROSTELECOM-AS, RU
 34984        2071        349     560  TELLCOM-AS, TR
  9009        2069        217    1115  M247, GB
  9121        1918       1691      18  TTNET, TR
 13188        1604        100      47  TRIOLAN, UA

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        6315       3307     597  Uninet S.A. de C.V., MX
 10620        3361        531     474  Telmex Colombia S.A., CO
 11830        2669        369      63  Instituto Costarricense de Electricidad
  6503        1675        327     390  Axtel, S.A.B. de C.V., MX
  7303        1553       1031     265  Telecom Argentina S.A., AR
 28573        1370       2243     192  CLARO S.A., BR
 13999        1238        477     297  Mega Cable, S.A. de C.V., MX
  6147        1114        378      52  Telefonica del Peru S.A.A., PE
  3816        1088        565     142  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172         955        112      69  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        1505        393      22  LINKdotNET-AS, EG
 24835        1102        570      24  RAYA-AS, EG
 36992        1077       1535      75  ETISALAT-MISR, EG
 36903         875        452      97  MT-MPLS, MA
  6713         599       1863      34  IAM-AS, MA
 29571         590         68      11  ORANGE-COTE-IVOIRE, CI
 37342         482         32       1  MOVITEL, MZ
 36935         380        522      40  Vodafone-, EG
 15399         372         45      10  WANANCHI-, KE
 23889         371        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        6315       3307     597  Uninet S.A. de C.V., MX
 12479        5951       1599     131  UNI2-AS, ES
  7545        5365        671     627  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4624       4192      73  ERX-CERNET-BKB China Education and Rese
 31334        4086        484      13  KABELDEUTSCHLAND-AS, DE
 11492        4042        270     659  CABLEONE, US
  7155        4034        280      28  VIASAT-SP-BACKBONE, US
 16509        3901       7820    1722  AMAZON-02, US
 39891        3776        203      20  ALJAWWALSTC-AS, SA
 22773        3528       2969     146  ASN-CXA-ALL-CCI-22773-RDC, US

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

Global Per AS Maximum Aggregation summary
-----------------------------------------

   ASN  No of nets  Net Savings  Description
 12479        5951         5820  UNI2-AS, ES
  7545        5365         4738  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4624         4551  ERX-CERNET-BKB China Education and Research Net
 31334        4086         4073  KABELDEUTSCHLAND-AS, DE
  7155        4034         4006  VIASAT-SP-BACKBONE, US
 39891        3776         3756  ALJAWWALSTC-AS, SA
 11492        4042         3383  CABLEONE, US
 22773        3528         3382  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3351         3327  VIETEL-AS-AP Viettel Group, VN
  6327        3373         3281  SHAW, CA

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

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

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     62828  UNALLOCATED  8.21.130.0/24             3356  LEVEL3, US
    393266  UNALLOCATED  8.23.52.0/24               174  COGENT-174, US
     62485  UNALLOCATED  8.23.229.0/24             3356  LEVEL3, US
     32985  UNALLOCATED  8.28.31.0/24              3356  LEVEL3, US
    394936  UNALLOCATED  8.33.224.0/24              174  COGENT-174, US
     27205  UNALLOCATED  8.38.16.0/21              6461  ZAYO-6461, US
     27205  UNALLOCATED  8.38.16.0/22             32787  PROLEXIC-TECHNOLOGIES-DDOS-M
     27205  UNALLOCATED  8.38.20.0/22             32787  PROLEXIC-TECHNOLOGIES-DDOS-M
     14109  UNALLOCATED  8.38.252.0/24             3356  LEVEL3, US
     23061  UNALLOCATED  8.39.119.0/24             3356  LEVEL3, US

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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix                Origin AS  Description
192.88.99.0/24             6939  HURRICANE, US

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

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

Unassigned Network     ASN Information  AS Name
23.136.224.0/24      Origin:     15206  UNASSIGNED
                    Transit:       174  COGENT-174, US
23.137.192.0/24      Origin:     31798  CANAD-86-31798, CA
                    Transit:       174  COGENT-174, US
27.100.7.0/24        Origin:     56096  UNASSIGNED
                    Transit:     45455  TH-2S1N-AP Two S One N Co Ltd, Internet 
27.126.156.0/22      Origin:     55827  UNASSIGNED
                    Transit:      9930  TTNET-MY TIME dotCom Berhad, MY
27.126.156.0/23      Origin:     55827  UNASSIGNED
                    Transit:      9930  TTNET-MY TIME dotCom Berhad, MY

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      /11:98      /12:285     
/13:579     /14:1157    /15:1908    /16:13363   /17:8110    /18:13832   
/19:25759   /20:40337   /21:47666   /22:98794   /23:81751   /24:464573  
/25:1288    /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        4940        5951  UNI2-AS, ES
 31334        3931        4086  KABELDEUTSCHLAND-AS, DE
 11492        3165        4042  CABLEONE, US
  6327        3162        3373  SHAW, CA
  7155        3125        4034  VIASAT-SP-BACKBONE, US
 39891        2946        3776  ALJAWWALSTC-AS, SA
  8551        2754        3295  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 22773        2748        3528  ASN-CXA-ALL-CCI-22773-RDC, US
  8151        2120        6315  Uninet S.A. de C.V., MX
 30036        2058        2311  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1565      2:1142      3:30        4:19        5:3305      6:51     
   8:1385      9:1        12:1784     13:497      14:2261     15:72     
  16:9        17:293      18:79       20:61       23:3388     24:2299   
  25:4        27:2512     30:1        31:3033     32:104      35:38     
  36:934      37:3303     38:1931     39:331      40:136      41:3405   
  42:703      43:2099     44:195      45:13811    46:3679     47:278    
  49:1433     50:1212     51:87       52:1136     54:272      55:594    
  56:6        57:48       58:1859     59:1140     60:704      61:2222   
  62:2229     63:1942     64:5065     65:2318     66:4853     67:2875   
  68:1218     69:3797     70:1435     71:675      72:2767     74:2592   
  75:1436     76:662      77:2595     78:1962     79:2405     80:1887   
  81:1587     82:1276     83:1127     84:1217     85:2511     86:551    
  87:1725     88:1090     89:2703     90:313      91:7560     92:1486   
  93:2453     94:2619     95:3766     96:1007     97:339      98:968    
  99:960     100:85      101:1093    102:842     103:23324   104:3403   
 105:391     106:844     107:1958    108:706     109:3779    110:1792   
 111:1988    112:1570    113:1392    114:1537    115:1843    116:1783   
 117:2061    118:2130    119:1701    120:846     121:1041    122:2414   
 123:1901    124:1559    125:2038    128:1347    129:916     130:624    
 131:1812    132:763     133:299     134:1240    135:275     136:604    
 137:843     138:2177    139:992     140:599     141:917     142:889    
 143:1202    144:970     145:325     146:1471    147:1021    148:2065   
 149:1151    150:821     151:1283    152:1482    153:373     154:4831   
 155:901     156:3404    157:1080    158:785     159:1952    160:1869   
 161:1017    162:3037    163:783     164:1448    165:1247    166:546    
 167:1621    168:3670    169:495     170:4282    171:762     172:1888   
 173:2387    174:1030    175:1013    176:2664    177:4239    178:2997   
 179:1508    180:2161    181:2460    182:3086    183:1117    184:2402   
 185:16209   186:3715    187:2645    188:4085    189:2155    190:8386   
 191:1413    192:10246   193:7366    194:6022    195:4290    196:3488   
 197:1904    198:6134    199:5904    200:7171    201:5169    202:10490  
 203:10093   204:4550    205:3095    206:3230    207:3282    208:4027   
 209:4375    210:4033    211:1988    212:3203    213:3022    214:1178   
 215:54      216:5870    217:2331    218:876     219:604     220:1994   
 221:915     222:1000    223:1475   

End of report


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