[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 11 18:02:43 UTC 2021


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 12 Jun, 2021

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

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

BGP routing table entries examined:                              854593
    Prefixes after maximum aggregation (per Origin AS):          322645
    Deaggregation factor:                                          2.65
    Unique aggregates announced (without unneeded subnets):      409480
Total ASes present in the Internet Routing Table:                 71406
    Prefixes per ASN:                                             11.97
Origin-only ASes present in the Internet Routing Table:           61421
Origin ASes announcing only one prefix:                           25365
Transit ASes present in the Internet Routing Table:                9985
Transit-only ASes present in the Internet Routing Table:            319
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      54
    Max AS path prepend of ASN ( 48366)                              51
Prefixes from unregistered ASNs in the Routing Table:              1077
    Number of instances of unregistered ASNs:                      1084
Number of 32-bit ASNs allocated by the RIRs:                      36302
Number of 32-bit ASNs visible in the Routing Table:               30177
Prefixes from 32-bit ASNs in the Routing Table:                  140528
Number of bogon 32-bit ASNs visible in the Routing Table:            25
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            568
Number of addresses announced to Internet:                   3040471936
    Equivalent to 181 /8s, 57 /16s and 235 /24s
    Percentage of available address space announced:               82.1
    Percentage of allocated address space announced:               82.1
    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:      284846

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

Prefixes being announced by APNIC Region ASes:                   230126
    Total APNIC prefixes after maximum aggregation:               65630
    APNIC Deaggregation factor:                                    3.51
Prefixes being announced from the APNIC address blocks:          225887
    Unique aggregates announced from the APNIC address blocks:    90032
APNIC Region origin ASes present in the Internet Routing Table:   11623
    APNIC Prefixes per ASN:                                       19.43
APNIC Region origin ASes announcing only one prefix:               3330
APNIC Region transit ASes present in the Internet Routing Table:   1646
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         32
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6792
Number of APNIC addresses announced to Internet:              774990592
    Equivalent to 46 /8s, 49 /16s and 107 /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, 131072-147769
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:                    248453
    Total ARIN prefixes after maximum aggregation:               113685
    ARIN Deaggregation factor:                                     2.19
Prefixes being announced from the ARIN address blocks:           248607
    Unique aggregates announced from the ARIN address blocks:    118550
ARIN Region origin ASes present in the Internet Routing Table:    18832
    ARIN Prefixes per ASN:                                        13.20
ARIN Region origin ASes announcing only one prefix:                6835
ARIN Region transit ASes present in the Internet Routing Table:    1952
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          35
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3919
Number of ARIN addresses announced to Internet:              1271191296
    Equivalent to 75 /8s, 196 /16s and 215 /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, 393216-401308
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:                    238151
    Total RIPE prefixes after maximum aggregation:               111035
    RIPE Deaggregation factor:                                     2.14
Prefixes being announced from the RIPE address blocks:           234246
    Unique aggregates announced from the RIPE address blocks:    142598
RIPE Region origin ASes present in the Internet Routing Table:    27964
    RIPE Prefixes per ASN:                                         8.38
RIPE Region origin ASes announcing only one prefix:               12012
RIPE Region transit ASes present in the Internet Routing Table:    3889
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          54
Number of RIPE region 32-bit ASNs visible in the Routing Table:   10234
Number of RIPE addresses announced to Internet:               710555264
    Equivalent to 42 /8s, 90 /16s and 54 /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:                  110934
    Total LACNIC prefixes after maximum aggregation:              26451
    LACNIC Deaggregation factor:                                   4.19
Prefixes being announced from the LACNIC address blocks:         112097
    Unique aggregates announced from the LACNIC address blocks:   47048
LACNIC Region origin ASes present in the Internet Routing Table:  10760
    LACNIC Prefixes per ASN:                                      10.42
LACNIC Region origin ASes announcing only one prefix:              2678
LACNIC Region transit ASes present in the Internet Routing Table:  2031
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        29
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8407
Number of LACNIC addresses announced to Internet:             175794176
    Equivalent to 10 /8s, 122 /16s and 104 /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:                  25851
    Total AfriNIC prefixes after maximum aggregation:              5097
    AfriNIC Deaggregation factor:                                  5.07
Prefixes being announced from the AfriNIC address blocks:         33188
    Unique aggregates announced from the AfriNIC address blocks:  10744
AfriNIC Region origin ASes present in the Internet Routing Table:  1484
    AfriNIC Prefixes per ASN:                                     22.36
AfriNIC Region origin ASes announcing only one prefix:              510
AfriNIC Region transit ASes present in the Internet Routing Table:  301
Average AfriNIC Region AS path length visible:                      5.2
    Max AfriNIC Region AS path length visible:                       28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  825
Number of AfriNIC addresses announced to Internet:            107354112
    Equivalent to 6 /8s, 102 /16s and 24 /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
  9808        7908       8999      55  CMNET-GD Guangdong Mobile Communication
  7545        5794        783     674  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4757       4192      74  ERX-CERNET-BKB China Education and Rese
  7713        3528       1023      56  TELKOMNET-AS-AP PT Telekomunikasi Indon
  7552        3516       1330      20  VIETEL-AS-AP Viettel Group, VN
 45899        2811       1896      54  VNPT-AS-VN VNPT Corp, VN
  4766        2430      11104     564  KIXS-AS-KR Korea Telecom, KR
  9498        2351        483     246  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2129        441     192  TATACOMM-AS TATA Communications formerl
 45090        2114       1197      71  CNNIC-TENCENT-NET-AP Shenzhen Tencent C

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
 16509        5167       9384    2297  AMAZON-02, US
 11492        4768        314     656  CABLEONE, US
  7155        4026        264      32  VIASAT-SP-BACKBONE, US
 22773        3932       3002     245  ASN-CXA-ALL-CCI-22773-RDC, US
 16625        3469       1776    2425  AKAMAI-AS, US
  6327        3361       1317      69  SHAW, CA
 30036        2580        372     129  MEDIACOM-ENTERPRISE-BUSINESS, US
   209        2537       5034     477  CENTURYLINK-US-LEGACY-QWEST, US
  5972        2247        453     785  DNIC-ASBLK-05800-06055, US
 20115        2170       2929     502  CHARTER-20115, 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        6713       1725     146  UNI2-AS, ES
 20940        3652       3347     201  AKAMAI-ASN1, NL
 39891        3266        187      22  ALJAWWALSTC-AS, SA
  8551        2960        378      40  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2912       2283     897  ROSTELECOM-AS, RU
  9009        2446        257    1313  M247, GB
 34984        2205        355     592  TELLCOM-AS, TR
 61317        1630        282     786  ASDETUK http://www.heficed.com, GB
 13188        1609        100      34  TRIOLAN, UA
 58224        1599        887     569  TCI, IR

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        8627       3411     577  Uninet S.A. de C.V., MX
 10620        3422        526     613  Telmex Colombia S.A., CO
 11830        2509        369      62  Instituto Costarricense de Electricidad
 13999        1745        436     448  Mega Cable, S.A. de C.V., MX
  6503        1450        311     476  Axtel, S.A.B. de C.V., MX
 28573        1396       2282     230  CLARO S.A., BR
  3816        1239        650     151  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1112        374      31  Telefonica del Peru S.A.A., PE
 11664         998        207     416  Techtel LMDS Comunicaciones Interactiva
 11172         963        111      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        1610        393      22  LINKdotNET-AS, EG
 24835        1450        498      30  RAYA-AS, EG
 36992        1259       1457     265  ETISALAT-MISR, EG
 36903        1183        537     110  MT-MPLS, MA
 29571         734         68      11  ORANGE-COTE-IVOIRE, CI
  6713         612       1863      34  IAM-AS, MA
 36935         526        522      40  Vodafone-, EG
 15399         492         48      24  WANANCHI-, KE
 37342         484         32       1  MOVITEL, MZ
 36914         418         82       3  KENET-AS, 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        8627       3411     577  Uninet S.A. de C.V., MX
  9808        7908       8999      55  CMNET-GD Guangdong Mobile Communication
 12479        6713       1725     146  UNI2-AS, ES
  7545        5794        783     674  TPG-INTERNET-AP TPG Telecom Limited, AU
 16509        5167       9384    2297  AMAZON-02, US
 11492        4768        314     656  CABLEONE, US
  4538        4757       4192      74  ERX-CERNET-BKB China Education and Rese
  7155        4026        264      32  VIASAT-SP-BACKBONE, US
 22773        3932       3002     245  ASN-CXA-ALL-CCI-22773-RDC, US
 20940        3652       3347     201  AKAMAI-ASN1, NL

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

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

   ASN  No of nets  Net Savings  Description
  9808        7908         7853  CMNET-GD Guangdong Mobile Communication Co.Ltd.
 12479        6713         6567  UNI2-AS, ES
  7545        5794         5120  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4757         4683  ERX-CERNET-BKB China Education and Research Net
 11492        4768         4112  CABLEONE, US
  7155        4026         3994  VIASAT-SP-BACKBONE, US
 22773        3932         3687  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3516         3496  VIETEL-AS-AP Viettel Group, VN
  7713        3528         3472  TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
 20940        3652         3451  AKAMAI-ASN1, NL

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             46887  LIGHTOWER, US
     18604  UNALLOCATED  8.25.204.0/24             3356  LEVEL3, US
    394936  UNALLOCATED  8.33.224.0/24              174  COGENT-174, US
     54338  UNALLOCATED  8.33.241.0/24             6461  ZAYO-6461, US
     23061  UNALLOCATED  8.39.119.0/24             3356  LEVEL3, US
    395438  UNALLOCATED  8.42.206.0/24             3356  LEVEL3, US
     40544  UNALLOCATED  12.0.33.0/24              6461  ZAYO-6461, US
     46505  UNALLOCATED  12.7.131.0/24             7018  ATT-INTERNET4, US
     15132  UNALLOCATED  12.9.150.0/24             1239  SPRINTLINK, 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
23.141.0.0/24        Origin:    395350  UNASSIGNED
                    Transit:     11426  TWC-11426-CAROLINAS, US
23.142.80.0/24       Origin:    209319  IPV6ROUTING, US
                    Transit:     46573  LAYER-HOST, US
23.162.32.0/24       Origin:     32444  SAFELINK-MV, US
                    Transit:      6939  HURRICANE, US
23.181.208.0/24      Origin:    399728  PFNDN, US
                    Transit:     20473  AS-CHOOPA, US
27.100.7.0/24        Origin:     56096  UNASSIGNED
                    Transit:     45455  TH-2S1N-AP Two S One N Co Ltd, Internet 

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

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:16       /9:13      /10:41      /11:102     /12:306     
/13:587     /14:1193    /15:1993    /16:13474   /17:8329    /18:13975   
/19:25442   /20:42323   /21:50330   /22:106762  /23:91319   /24:496996  
/25:1392    /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        5668        6713  UNI2-AS, ES
 11492        3804        4768  CABLEONE, US
  8151        3201        8627  Uninet S.A. de C.V., MX
  6327        3167        3361  SHAW, CA
  7155        3114        4026  VIASAT-SP-BACKBONE, US
 22773        2962        3932  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2801        3266  ALJAWWALSTC-AS, SA
  8551        2425        2960  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2248        2580  MEDIACOM-ENTERPRISE-BUSINESS, US
 11830        1931        2509  Instituto Costarricense de Electricidad y Telec

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

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

   1:1867      2:1195      3:134       4:19        5:3556      6:74     
   7:5         8:1538      9:1        11:164      12:1736     13:364    
  14:2297     15:76       16:15       17:324      18:93       20:128    
  21:1        22:188      23:4785     24:2427     25:2        27:2555   
  29:19       31:2292     32:109      34:1        35:41       36:1588   
  37:3769     38:2163     39:624      40:160      41:3830     42:958    
  43:2079     44:259      45:15001    46:3713     47:382      49:1619   
  50:1793     51:100      52:1244     54:218      55:766      56:9      
  57:52       58:1726     59:1204     60:931      61:2307     62:2277   
  63:1967     64:5360     65:2379     66:5030     67:2888     68:1164   
  69:4072     70:1387     71:681      72:3161     74:2592     75:1490   
  76:698      77:2022     78:1709     79:2279     80:1852     81:1511   
  82:1370     83:1136     84:1281     85:2695     86:715      87:1800   
  88:969      89:2999     90:488      91:7339     92:1782     93:2550   
  94:3129     95:3505     96:1295     97:343      98:972      99:969    
 100:93      101:1045    102:1477    103:26057   104:3764    105:435    
 106:786     107:2233    108:716     109:3869    110:2001    111:3183   
 112:1970    113:1536    114:1490    115:1910    116:1898    117:2349   
 118:2366    119:1885    120:1518    121:1085    122:2527    123:2171   
 124:1573    125:2074    128:1314    129:1095    130:862     131:2034   
 132:748     133:360     134:1614    135:298     136:765     137:931    
 138:2369    139:1190    140:747     141:1178    142:1200    143:1284   
 144:1250    145:328     146:1455    147:1337    148:2191    149:1452   
 150:818     151:1076    152:1519    153:414     154:2655    155:1329   
 156:1538    157:1185    158:916     159:2005    160:2323    161:1168   
 162:3317    163:992     164:1510    165:1382    166:606     167:1776   
 168:3628    169:693     170:4299    171:775     172:2436    173:2972   
 174:993     175:1085    176:3165    177:4370    178:2923    179:1883   
 180:2271    181:2642    182:3200    183:2077    184:2415    185:18348  
 186:4186    187:3133    188:3320    189:2940    190:8832    191:1408   
 192:10698   193:8193    194:6655    195:4783    196:2871    197:2329   
 198:6055    199:6022    200:7412    201:5297    202:10561   203:10091  
 204:4650    205:3354    206:3567    207:3390    208:4004    209:4689   
 210:4254    211:2262    212:3694    213:3399    214:1217    215:61     
 216:6253    217:2566    218:1211    219:707     220:2068    221:980    
 222:881     223:1929   

End of report



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