Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 26 18:03:33 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 27 Jun, 2020

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

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

BGP routing table entries examined:                              814894
    Prefixes after maximum aggregation (per Origin AS):          309638
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      397512
Total ASes present in the Internet Routing Table:                 68362
    Prefixes per ASN:                                             11.92
Origin-only ASes present in the Internet Routing Table:           58780
Origin ASes announcing only one prefix:                           24483
Transit ASes present in the Internet Routing Table:                9582
Transit-only ASes present in the Internet Routing Table:            299
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      50
    Max AS path prepend of ASN ( 22394)                              38
Prefixes from unregistered ASNs in the Routing Table:               815
    Number of instances of unregistered ASNs:                       816
Number of 32-bit ASNs allocated by the RIRs:                      32220
Number of 32-bit ASNs visible in the Routing Table:               26515
Prefixes from 32-bit ASNs in the Routing Table:                  122091
Number of bogon 32-bit ASNs visible in the Routing Table:            11
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            537
Number of addresses announced to Internet:                   2842787584
    Equivalent to 169 /8s, 113 /16s and 127 /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:      274787

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

Prefixes being announced by APNIC Region ASes:                   214375
    Total APNIC prefixes after maximum aggregation:               62558
    APNIC Deaggregation factor:                                    3.43
Prefixes being announced from the APNIC address blocks:          207909
    Unique aggregates announced from the APNIC address blocks:    86051
APNIC Region origin ASes present in the Internet Routing Table:   10626
    APNIC Prefixes per ASN:                                       19.57
APNIC Region origin ASes announcing only one prefix:               2978
APNIC Region transit ASes present in the Internet Routing Table:   1585
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         27
Number of APNIC region 32-bit ASNs visible in the Routing Table:   5710
Number of APNIC addresses announced to Internet:              769923200
    Equivalent to 45 /8s, 228 /16s and 24 /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:                    238352
    Total ARIN prefixes after maximum aggregation:               109528
    ARIN Deaggregation factor:                                     2.18
Prefixes being announced from the ARIN address blocks:           235569
    Unique aggregates announced from the ARIN address blocks:    119747
ARIN Region origin ASes present in the Internet Routing Table:    18526
    ARIN Prefixes per ASN:                                        12.72
ARIN Region origin ASes announcing only one prefix:                6782
ARIN Region transit ASes present in the Internet Routing Table:    1899
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:    3295
Number of ARIN addresses announced to Internet:              1079433728
    Equivalent to 64 /8s, 86 /16s and 218 /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:                    231374
    Total RIPE prefixes after maximum aggregation:               107357
    RIPE Deaggregation factor:                                     2.16
Prefixes being announced from the RIPE address blocks:           227988
    Unique aggregates announced from the RIPE address blocks:    134369
RIPE Region origin ASes present in the Internet Routing Table:    27159
    RIPE Prefixes per ASN:                                         8.39
RIPE Region origin ASes announcing only one prefix:               11746
RIPE Region transit ASes present in the Internet Routing Table:    3825
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9253
Number of RIPE addresses announced to Internet:               709067648
    Equivalent to 42 /8s, 67 /16s and 131 /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:                  106747
    Total LACNIC prefixes after maximum aggregation:              24787
    LACNIC Deaggregation factor:                                   4.31
Prefixes being announced from the LACNIC address blocks:         107886
    Unique aggregates announced from the LACNIC address blocks:   46672
LACNIC Region origin ASes present in the Internet Routing Table:   9981
    LACNIC Prefixes per ASN:                                      10.81
LACNIC Region origin ASes announcing only one prefix:              2488
LACNIC Region transit ASes present in the Internet Routing Table:  1856
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        50
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  7565
Number of LACNIC addresses announced to Internet:             174461952
    Equivalent to 10 /8s, 102 /16s and 20 /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:                  23230
    Total AfriNIC prefixes after maximum aggregation:              4752
    AfriNIC Deaggregation factor:                                  4.89
Prefixes being announced from the AfriNIC address blocks:         35005
    Unique aggregates announced from the AfriNIC address blocks:  10217
AfriNIC Region origin ASes present in the Internet Routing Table:  1404
    AfriNIC Prefixes per ASN:                                     24.93
AfriNIC Region origin ASes announcing only one prefix:              489
AfriNIC Region transit ASes present in the Internet Routing Table:  277
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       30
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  692
Number of AfriNIC addresses announced to Internet:            109458432
    Equivalent to 6 /8s, 134 /16s and 52 /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        5537        720     648  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4743       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3435       1330      21  VIETEL-AS-AP Viettel Group, VN
 45899        3168       1839     101  VNPT-AS-VN VNPT Corp, VN
  7713        2700        827     527  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2558       9043      61  CMNET-GD Guangdong Mobile Communication
  4766        2283      11101     553  KIXS-AS-KR Korea Telecom, KR
  9498        2280        434     225  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2134        441     193  TATACOMM-AS TATA Communications formerl
  9394        2028       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        4450        299     643  CABLEONE, US
  7155        4036        264      27  VIASAT-SP-BACKBONE, US
 16509        3996       8142    1792  AMAZON-02, US
 22773        3570       2968     153  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3351       1324      90  SHAW, CA
 16625        3109       1620    2214  AKAMAI-AS, US
   209        2420       5075     529  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2409        364     205  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2305       2981    1622  FRONTIER-FRTR, US
 26484        2219        139     243  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        5812       1652     135  UNI2-AS, ES
 31334        5095        484      13  KABELDEUTSCHLAND-AS, DE
  8551        3162        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        3066        456    2075  AKAMAI-ASN1, EU
 39891        2879        171      19  ALJAWWALSTC-AS, SA
 12389        2549       2263     757  ROSTELECOM-AS, RU
  9009        2217        233    1214  M247, GB
 34984        2154        354     565  TELLCOM-AS, TR
 13188        1609        100      35  TRIOLAN, UA
 61317        1343        156     575  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        6754       3330     595  Uninet S.A. de C.V., MX
 10620        3359        530     508  Telmex Colombia S.A., CO
 11830        2666        369      63  Instituto Costarricense de Electricidad
  6503        1718        326     387  Axtel, S.A.B. de C.V., MX
  7303        1519        988     253  Telecom Argentina S.A., AR
 13999        1422        512     337  Mega Cable, S.A. de C.V., MX
 28573        1373       2243     216  CLARO S.A., BR
  6147        1118        379      39  Telefonica del Peru S.A.A., PE
  3816        1110        570     149  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172         957        112      71  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        1490        393      22  LINKdotNET-AS, EG
 36992        1111       1539      76  ETISALAT-MISR, EG
 24835        1087        474      24  RAYA-AS, EG
 36903         917        480      93  MT-MPLS, MA
 29571         625         68      11  ORANGE-COTE-IVOIRE, CI
  6713         552       1863      34  IAM-AS, MA
 15399         492         45      12  WANANCHI-, KE
 37342         481         32       1  MOVITEL, MZ
 36935         429        522      42  Vodafone-, EG
 23889         344        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        6754       3330     595  Uninet S.A. de C.V., MX
 12479        5812       1652     135  UNI2-AS, ES
  7545        5537        720     648  TPG-INTERNET-AP TPG Telecom Limited, AU
 31334        5095        484      13  KABELDEUTSCHLAND-AS, DE
  4538        4743       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4450        299     643  CABLEONE, US
  7155        4036        264      27  VIASAT-SP-BACKBONE, US
 16509        3996       8142    1792  AMAZON-02, US
 22773        3570       2968     153  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3435       1330      21  VIETEL-AS-AP Viettel Group, VN

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        5812         5677  UNI2-AS, ES
 31334        5095         5082  KABELDEUTSCHLAND-AS, DE
  7545        5537         4889  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4743         4670  ERX-CERNET-BKB China Education and Research Net
  7155        4036         4009  VIASAT-SP-BACKBONE, US
 11492        4450         3807  CABLEONE, US
 22773        3570         3417  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3435         3414  VIETEL-AS-AP Viettel Group, VN
  6327        3351         3261  SHAW, CA
  8551        3162         3117  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo

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
    213034  UNALLOCATED  2.56.11.0/24             34854  STACLAR-CARRIER, DE
     22357  UNALLOCATED  8.7.108.0/24              3356  LEVEL3, US
     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

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
41.67.208.0/21       Origin:     15964  CAMNET-AS, CM
                    Transit:     37282  MAINONE, 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        /8:9        /9:11      /10:38      /11:100     /12:287     
/13:578     /14:1168    /15:1912    /16:13349   /17:8215    /18:13965   
/19:25900   /20:41203   /21:48482   /22:100984  /23:83519   /24:473899  
/25:1275    /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
 31334        4941        5095  KABELDEUTSCHLAND-AS, DE
 12479        4835        5812  UNI2-AS, ES
 11492        3515        4450  CABLEONE, US
  6327        3140        3351  SHAW, CA
  7155        3128        4036  VIASAT-SP-BACKBONE, US
 22773        2779        3570  ASN-CXA-ALL-CCI-22773-RDC, US
  8551        2621        3162  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  8151        2433        6754  Uninet S.A. de C.V., MX
 39891        2417        2879  ALJAWWALSTC-AS, SA
 30036        2151        2409  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1754      2:1191      3:30        4:19        5:3387      6:52     
   8:1458      9:1        11:1        12:1777     13:512      14:2306   
  15:72       16:8        17:289      18:81       20:105      23:3732   
  24:2290     25:3        27:2552     31:3089     32:129      34:1      
  35:42       36:960      37:3270     38:1941     39:426      40:128    
  41:3685     42:900      43:2142     44:207      45:14448    46:3685   
  47:293      49:1465     50:1539     51:90       52:1103     54:226    
  55:655      56:6        57:51       58:1851     59:1175     60:756    
  61:2304     62:2144     63:1981     64:5227     65:2323     66:5023   
  67:2867     68:1178     69:3960     70:1404     71:680      72:2868   
  74:2577     75:1450     76:663      77:2899     78:1643     79:2380   
  80:1945     81:1658     82:1313     83:1328     84:1229     85:2625   
  86:542      87:1740     88:1142     89:2749     90:383      91:8024   
  92:1527     93:2507     94:2759     95:3865     96:1238     97:340    
  98:924      99:977     100:86      101:999     102:980     103:23778  
 104:3443    105:398     106:883     107:2022    108:712     109:3635   
 110:1850    111:2059    112:1620    113:1362    114:1540    115:1831   
 116:1794    117:2097    118:2145    119:1705    120:829     121:1034   
 122:2444    123:2072    124:1562    125:2013    128:1384    129:1210   
 130:655     131:1844    132:752     133:302     134:1329    135:305    
 136:618     137:861     138:2172    139:998     140:673     141:998    
 142:931     143:1253    144:1020    145:323     146:1497    147:1019   
 148:2117    149:1189    150:831     151:1081    152:1486    153:400    
 154:4694    155:1057    156:3103    157:1136    158:850     159:1977   
 160:1910    161:1063    162:3096    163:826     164:1467    165:1301   
 166:560     167:1632    168:3527    169:562     170:4226    171:777    
 172:1940    173:2573    174:986     175:1057    176:2580    177:4131   
 178:3037    179:1470    180:2274    181:2473    182:3093    183:1152   
 184:2414    185:16504   186:3742    187:2852    188:4105    189:2401   
 190:8727    191:1318    192:10376   193:7534    194:6232    195:4419   
 196:3278    197:2024    198:6110    199:5893    200:7203    201:5226   
 202:10535   203:10273   204:4566    205:3093    206:3185    207:3273   
 208:4065    209:4446    210:4005    211:2019    212:3391    213:3135   
 214:1188    215:62      216:6020    217:2406    218:854     219:616    
 220:2015    221:949     222:1001    223:1504   

End of report


More information about the NANOG mailing list