[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 5 18:03:31 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 06 Jun, 2020

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

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

BGP routing table entries examined:                              813692
    Prefixes after maximum aggregation (per Origin AS):          308952
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      396724
Total ASes present in the Internet Routing Table:                 68243
    Prefixes per ASN:                                             11.92
Origin-only ASes present in the Internet Routing Table:           58615
Origin ASes announcing only one prefix:                           24432
Transit ASes present in the Internet Routing Table:                9628
Transit-only ASes present in the Internet Routing Table:            316
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      46
    Max AS path prepend of ASN ( 22394)                              38
Prefixes from unregistered ASNs in the Routing Table:               836
    Number of instances of unregistered ASNs:                       838
Number of 32-bit ASNs allocated by the RIRs:                      31936
Number of 32-bit ASNs visible in the Routing Table:               26324
Prefixes from 32-bit ASNs in the Routing Table:                  121260
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:            549
Number of addresses announced to Internet:                   2842667264
    Equivalent to 169 /8s, 111 /16s and 169 /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:               99.5
Total number of prefixes smaller than registry allocations:      274022

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

Prefixes being announced by APNIC Region ASes:                   214366
    Total APNIC prefixes after maximum aggregation:               62356
    APNIC Deaggregation factor:                                    3.44
Prefixes being announced from the APNIC address blocks:          207911
    Unique aggregates announced from the APNIC address blocks:    85914
APNIC Region origin ASes present in the Internet Routing Table:   10591
    APNIC Prefixes per ASN:                                       19.63
APNIC Region origin ASes announcing only one prefix:               2953
APNIC Region transit ASes present in the Internet Routing Table:   1562
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         27
Number of APNIC region 32-bit ASNs visible in the Routing Table:   5670
Number of APNIC addresses announced to Internet:              767894400
    Equivalent to 45 /8s, 197 /16s and 35 /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:                    237767
    Total ARIN prefixes after maximum aggregation:               109331
    ARIN Deaggregation factor:                                     2.17
Prefixes being announced from the ARIN address blocks:           235106
    Unique aggregates announced from the ARIN address blocks:    119598
ARIN Region origin ASes present in the Internet Routing Table:    18520
    ARIN Prefixes per ASN:                                        12.69
ARIN Region origin ASes announcing only one prefix:                6774
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:    3267
Number of ARIN addresses announced to Internet:              1080751616
    Equivalent to 64 /8s, 106 /16s and 246 /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:                    231189
    Total RIPE prefixes after maximum aggregation:               107028
    RIPE Deaggregation factor:                                     2.16
Prefixes being announced from the RIPE address blocks:           227801
    Unique aggregates announced from the RIPE address blocks:    134036
RIPE Region origin ASes present in the Internet Routing Table:    27130
    RIPE Prefixes per ASN:                                         8.40
RIPE Region origin ASes announcing only one prefix:               11744
RIPE Region transit ASes present in the Internet Routing Table:    3848
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:    9204
Number of RIPE addresses announced to Internet:               709254528
    Equivalent to 42 /8s, 70 /16s and 93 /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
                       196608-213403
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:                  106629
    Total LACNIC prefixes after maximum aggregation:              24862
    LACNIC Deaggregation factor:                                   4.29
Prefixes being announced from the LACNIC address blocks:         107737
    Unique aggregates announced from the LACNIC address blocks:   46584
LACNIC Region origin ASes present in the Internet Routing Table:   9916
    LACNIC Prefixes per ASN:                                      10.86
LACNIC Region origin ASes announcing only one prefix:              2474
LACNIC Region transit ASes present in the Internet Routing Table:  1871
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        46
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  7493
Number of LACNIC addresses announced to Internet:             174663936
    Equivalent to 10 /8s, 105 /16s and 41 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-272796 + 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:                  22904
    Total AfriNIC prefixes after maximum aggregation:              4705
    AfriNIC Deaggregation factor:                                  4.87
Prefixes being announced from the AfriNIC address blocks:         34588
    Unique aggregates announced from the AfriNIC address blocks:  10136
AfriNIC Region origin ASes present in the Internet Routing Table:  1400
    AfriNIC Prefixes per ASN:                                     24.71
AfriNIC Region origin ASes announcing only one prefix:              487
AfriNIC Region transit ASes present in the Internet Routing Table:  278
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       30
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  690
Number of AfriNIC addresses announced to Internet:            109584896
    Equivalent to 6 /8s, 136 /16s and 34 /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        5522        703     643  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4734       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3412       1330      20  VIETEL-AS-AP Viettel Group, VN
  9808        3221       9043      61  CMNET-GD Guangdong Mobile Communication
 45899        3152       1806     101  VNPT-AS-VN VNPT Corp, VN
  7713        2713        831     511  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9498        2271        434     224  BBIL-AP BHARTI Airtel Ltd., IN
  4766        2265      11101     554  KIXS-AS-KR Korea Telecom, KR
  4755        2132        441     193  TATACOMM-AS TATA Communications formerl
  9394        2039       4914      20  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        4438        298     624  CABLEONE, US
  7155        4036        264      27  VIASAT-SP-BACKBONE, US
 16509        3936       8124    1783  AMAZON-02, US
 22773        3562       2969     153  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3374       1324      90  SHAW, CA
 16625        3110       1628    2216  AKAMAI-AS, US
   209        2431       5076     534  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2395        364     258  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2304       2981    1621  FRONTIER-FRTR, US
 26484        2184        137     201  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        5791       1658     138  UNI2-AS, ES
 31334        4906        484      13  KABELDEUTSCHLAND-AS, DE
 39891        3651        203      20  ALJAWWALSTC-AS, SA
  8551        3178        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        3031        449    2056  AKAMAI-ASN1, EU
 12389        2516       2251     733  ROSTELECOM-AS, RU
  9009        2222        234    1212  M247, GB
 34984        2129        353     562  TELLCOM-AS, TR
 13188        1604        100      35  TRIOLAN, UA
 61317        1235        140     551  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        6658       3325     602  Uninet S.A. de C.V., MX
 10620        3354        529     506  Telmex Colombia S.A., CO
 11830        2666        369      63  Instituto Costarricense de Electricidad
  6503        1687        327     388  Axtel, S.A.B. de C.V., MX
  7303        1517        988     251  Telecom Argentina S.A., AR
 13999        1417        513     331  Mega Cable, S.A. de C.V., MX
 28573        1369       2243     206  CLARO S.A., BR
  6147        1149        379      39  Telefonica del Peru S.A.A., PE
  3816        1107        570     148  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172         955        111      68  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        1485        393      22  LINKdotNET-AS, EG
 24835        1119        522      26  RAYA-AS, EG
 36992        1085       1539      76  ETISALAT-MISR, EG
 36903         900        472      91  MT-MPLS, MA
 29571         606         68      11  ORANGE-COTE-IVOIRE, CI
  6713         551       1863      34  IAM-AS, MA
 37342         479         32       1  MOVITEL, MZ
 36935         409        522      44  Vodafone-, EG
 23889         365        231      15  MauritiusTelecom, MU
 15399         364         45      12  WANANCHI-, KE

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        6658       3325     602  Uninet S.A. de C.V., MX
 12479        5791       1658     138  UNI2-AS, ES
  7545        5522        703     643  TPG-INTERNET-AP TPG Telecom Limited, AU
 31334        4906        484      13  KABELDEUTSCHLAND-AS, DE
  4538        4734       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4438        298     624  CABLEONE, US
  7155        4036        264      27  VIASAT-SP-BACKBONE, US
 16509        3936       8124    1783  AMAZON-02, US
 39891        3651        203      20  ALJAWWALSTC-AS, SA
 22773        3562       2969     153  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        5791         5653  UNI2-AS, ES
 31334        4906         4893  KABELDEUTSCHLAND-AS, DE
  7545        5522         4879  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4734         4661  ERX-CERNET-BKB China Education and Research Net
  7155        4036         4009  VIASAT-SP-BACKBONE, US
 11492        4438         3814  CABLEONE, US
 39891        3651         3631  ALJAWWALSTC-AS, SA
 22773        3562         3409  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3412         3392  VIETEL-AS-AP Viettel Group, VN
  6327        3374         3284  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
     23061  UNALLOCATED  8.39.119.0/24             3356  LEVEL3, US
     26584  UNALLOCATED  8.42.62.0/23               209  CENTURYLINK-US-LEGACY-QWEST,
    395438  UNALLOCATED  8.42.206.0/24             3356  LEVEL3, US
     46766  UNALLOCATED  8.44.208.0/24             3356  LEVEL3, US
     40544  UNALLOCATED  12.0.33.0/24              6461  ZAYO-6461, 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
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
27.126.158.0/23      Origin:     55827  UNASSIGNED
                    Transit:      9930  TTNET-MY TIME dotCom Berhad, MY
41.67.192.0/18       Origin:     15964  CAMNET-AS, CM
                    Transit:     37662  WIOCC-AS, MU

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        /8:9        /9:11      /10:38      /11:99      /12:287     
/13:580     /14:1170    /15:1916    /16:13360   /17:8233    /18:13940   
/19:25887   /20:41273   /21:48462   /22:100713  /23:83520   /24:472909  
/25:1285    /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        4794        5791  UNI2-AS, ES
 31334        4751        4906  KABELDEUTSCHLAND-AS, DE
 11492        3519        4438  CABLEONE, US
  6327        3164        3374  SHAW, CA
  7155        3128        4036  VIASAT-SP-BACKBONE, US
 39891        2801        3651  ALJAWWALSTC-AS, SA
 22773        2773        3562  ASN-CXA-ALL-CCI-22773-RDC, US
  8551        2636        3178  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  8151        2349        6658  Uninet S.A. de C.V., MX
 30036        2138        2395  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1772      2:1182      3:30        4:19        5:3382      6:52     
   8:1421      9:1        11:1        12:1785     13:507      14:2311   
  15:72       16:8        17:294      18:81       20:106      23:3651   
  24:2285     25:2        27:2525     31:3086     32:127      34:3      
  35:41       36:938      37:3265     38:2029     39:418      40:128    
  41:3616     42:899      43:2135     44:208      45:14371    46:3681   
  47:293      49:1457     50:1451     51:93       52:1052     54:240    
  55:672      56:6        57:52       58:1841     59:1168     60:741    
  61:2290     62:2082     63:1984     64:5127     65:2299     66:4969   
  67:2870     68:1185     69:3938     70:1408     71:679      72:2873   
  74:2601     75:1447     76:668      77:2898     78:1653     79:2364   
  80:1935     81:1625     82:1318     83:1311     84:1235     85:2612   
  86:539      87:1734     88:1089     89:2752     90:381      91:7959   
  92:1522     93:2506     94:2714     95:3897     96:1242     97:331    
  98:932      99:977     100:87      101:1003    102:941     103:23789  
 104:3436    105:395     106:879     107:1997    108:713     109:3671   
 110:1829    111:2044    112:1600    113:1358    114:1522    115:1828   
 116:1792    117:2196    118:2131    119:1711    120:856     121:1043   
 122:2427    123:1994    124:1553    125:2023    128:1364    129:1185   
 130:644     131:1839    132:750     133:302     134:1313    135:287    
 136:614     137:851     138:2187    139:993     140:673     141:987    
 142:925     143:1216    144:1013    145:305     146:1494    147:1029   
 148:2122    149:1190    150:872     151:1331    152:1493    153:390    
 154:4658    155:1053    156:3122    157:1126    158:845     159:1969   
 160:1893    161:1049    162:3087    163:830     164:1458    165:1290   
 166:555     167:1634    168:3544    169:546     170:4210    171:771    
 172:1936    173:2547    174:992     175:1042    176:2699    177:4238   
 178:3054    179:1462    180:2271    181:2465    182:3083    183:1166   
 184:2430    185:16436   186:3730    187:2787    188:4096    189:2339   
 190:8765    191:1317    192:10378   193:7536    194:6184    195:4409   
 196:3216    197:1964    198:6084    199:5916    200:7232    201:5261   
 202:10492   203:10249   204:4579    205:3105    206:3207    207:3277   
 208:4067    209:4434    210:3992    211:2023    212:3371    213:3137   
 214:1189    215:62      216:6052    217:2425    218:874     219:613    
 220:2040    221:935     222:993     223:1487   

End of report


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