[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 25 18:02:44 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 26 Jun, 2021

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

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

BGP routing table entries examined:                              856006
    Prefixes after maximum aggregation (per Origin AS):          323083
    Deaggregation factor:                                          2.65
    Unique aggregates announced (without unneeded subnets):      410634
Total ASes present in the Internet Routing Table:                 71491
    Prefixes per ASN:                                             11.97
Origin-only ASes present in the Internet Routing Table:           61485
Origin ASes announcing only one prefix:                           25393
Transit ASes present in the Internet Routing Table:               10006
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:              1118
    Number of instances of unregistered ASNs:                      1124
Number of 32-bit ASNs allocated by the RIRs:                      36432
Number of 32-bit ASNs visible in the Routing Table:               30284
Prefixes from 32-bit ASNs in the Routing Table:                  141003
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:            538
Number of addresses announced to Internet:                   3040868480
    Equivalent to 181 /8s, 63 /16s and 248 /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:      285200

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

Prefixes being announced by APNIC Region ASes:                   229936
    Total APNIC prefixes after maximum aggregation:               65725
    APNIC Deaggregation factor:                                    3.50
Prefixes being announced from the APNIC address blocks:          225687
    Unique aggregates announced from the APNIC address blocks:    90258
APNIC Region origin ASes present in the Internet Routing Table:   11672
    APNIC Prefixes per ASN:                                       19.34
APNIC Region origin ASes announcing only one prefix:               3329
APNIC Region transit ASes present in the Internet Routing Table:   1655
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:   6843
Number of APNIC addresses announced to Internet:              774691840
    Equivalent to 46 /8s, 44 /16s and 220 /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:                    249491
    Total ARIN prefixes after maximum aggregation:               113801
    ARIN Deaggregation factor:                                     2.19
Prefixes being announced from the ARIN address blocks:           249455
    Unique aggregates announced from the ARIN address blocks:    118754
ARIN Region origin ASes present in the Internet Routing Table:    18840
    ARIN Prefixes per ASN:                                        13.24
ARIN Region origin ASes announcing only one prefix:                6831
ARIN Region transit ASes present in the Internet Routing Table:    1947
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          28
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3941
Number of ARIN addresses announced to Internet:              1271687680
    Equivalent to 75 /8s, 204 /16s and 106 /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:                    238502
    Total RIPE prefixes after maximum aggregation:               111239
    RIPE Deaggregation factor:                                     2.14
Prefixes being announced from the RIPE address blocks:           234717
    Unique aggregates announced from the RIPE address blocks:    143186
RIPE Region origin ASes present in the Internet Routing Table:    27978
    RIPE Prefixes per ASN:                                         8.39
RIPE Region origin ASes announcing only one prefix:               12027
RIPE Region transit ASes present in the Internet Routing Table:    3894
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:   10250
Number of RIPE addresses announced to Internet:               710756224
    Equivalent to 42 /8s, 93 /16s and 71 /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:                  110983
    Total LACNIC prefixes after maximum aggregation:              26478
    LACNIC Deaggregation factor:                                   4.19
Prefixes being announced from the LACNIC address blocks:         112149
    Unique aggregates announced from the LACNIC address blocks:   47128
LACNIC Region origin ASes present in the Internet Routing Table:  10780
    LACNIC Prefixes per ASN:                                      10.40
LACNIC Region origin ASes announcing only one prefix:              2695
LACNIC Region transit ASes present in the Internet Routing Table:  2044
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:  8425
Number of LACNIC addresses announced to Internet:             175819520
    Equivalent to 10 /8s, 122 /16s and 203 /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:                  25975
    Total AfriNIC prefixes after maximum aggregation:              5088
    AfriNIC Deaggregation factor:                                  5.11
Prefixes being announced from the AfriNIC address blocks:         33460
    Unique aggregates announced from the AfriNIC address blocks:  10830
AfriNIC Region origin ASes present in the Internet Routing Table:  1482
    AfriNIC Prefixes per ASN:                                     22.58
AfriNIC Region origin ASes announcing only one prefix:              511
AfriNIC Region transit ASes present in the Internet Routing Table:  300
Average AfriNIC Region AS path length visible:                      5.1
    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:            107482624
    Equivalent to 6 /8s, 104 /16s and 14 /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        7572       9000      58  CMNET-GD Guangdong Mobile Communication
  7545        5808        783     677  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4765       4192      74  ERX-CERNET-BKB China Education and Rese
  7713        3528       1023      56  TELKOMNET-AS-AP PT Telekomunikasi Indon
  7552        3517       1330      20  VIETEL-AS-AP Viettel Group, VN
 45899        2812       1897      55  VNPT-AS-VN VNPT Corp, VN
  4766        2440      11120     567  KIXS-AS-KR Korea Telecom, KR
  9498        2358        483     246  BBIL-AP BHARTI Airtel Ltd., IN
 45090        2114       1197      71  CNNIC-TENCENT-NET-AP Shenzhen Tencent C
  4755        2113        437     190  TATACOMM-AS TATA Communications formerl

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        5208       9531    2316  AMAZON-02, US
 11492        4781        315     662  CABLEONE, US
  7155        4027        264      32  VIASAT-SP-BACKBONE, US
 22773        3963       3012     256  ASN-CXA-ALL-CCI-22773-RDC, US
 16625        3475       1782    2434  AKAMAI-AS, US
  6327        3360       1317      69  SHAW, CA
 30036        2580        372     123  MEDIACOM-ENTERPRISE-BUSINESS, US
   209        2531       5034     473  CENTURYLINK-US-LEGACY-QWEST, US
  5972        2252        453     784  DNIC-ASBLK-05800-06055, US
 20115        2169       2930     492  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        6753       1721     140  UNI2-AS, ES
 20940        3650       3347     206  AKAMAI-ASN1, NL
 39891        3267        187      22  ALJAWWALSTC-AS, SA
  8551        3012        378      40  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2912       2283     897  ROSTELECOM-AS, RU
  9009        2460        258    1315  M247, GB
 34984        2218        357     595  TELLCOM-AS, TR
 61317        1676        268     824  ASDETUK http://www.heficed.com, GB
 13188        1610        100      27  TRIOLAN, UA
 58224        1599        887     558  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        8526       3439     595  Uninet S.A. de C.V., MX
 10620        3407        525     643  Telmex Colombia S.A., CO
 11830        2509        369      62  Instituto Costarricense de Electricidad
 13999        1747        430     460  Mega Cable, S.A. de C.V., MX
  6503        1450        311     476  Axtel, S.A.B. de C.V., MX
 28573        1425       2284     234  CLARO S.A., BR
  3816        1239        650     151  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1115        374      31  Telefonica del Peru S.A.A., PE
 26615        1039       2351     134  TIM S/A, BR
 11664        1004        204     428  Techtel LMDS Comunicaciones Interactiva

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        1644        393      22  LINKdotNET-AS, EG
 24835        1457        498      30  RAYA-AS, EG
 36992        1303       1489     266  ETISALAT-MISR, EG
 36903        1183        537     110  MT-MPLS, MA
 29571         746         68      11  ORANGE-COTE-IVOIRE, CI
  6713         612       1863      34  IAM-AS, MA
 36935         532        522      40  Vodafone-, EG
 15399         493         49      25  WANANCHI-, KE
 37342         482         32       1  MOVITEL, MZ
 36914         411         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        8526       3439     595  Uninet S.A. de C.V., MX
  9808        7572       9000      58  CMNET-GD Guangdong Mobile Communication
 12479        6753       1721     140  UNI2-AS, ES
  7545        5808        783     677  TPG-INTERNET-AP TPG Telecom Limited, AU
 16509        5208       9531    2316  AMAZON-02, US
 11492        4781        315     662  CABLEONE, US
  4538        4765       4192      74  ERX-CERNET-BKB China Education and Rese
  7155        4027        264      32  VIASAT-SP-BACKBONE, US
 22773        3963       3012     256  ASN-CXA-ALL-CCI-22773-RDC, US
 20940        3650       3347     206  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        7572         7514  CMNET-GD Guangdong Mobile Communication Co.Ltd.
 12479        6753         6613  UNI2-AS, ES
  7545        5808         5131  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4765         4691  ERX-CERNET-BKB China Education and Research Net
 11492        4781         4119  CABLEONE, US
  7155        4027         3995  VIASAT-SP-BACKBONE, US
 22773        3963         3707  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3517         3497  VIETEL-AS-AP Viettel Group, VN
  7713        3528         3472  TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
 20940        3650         3444  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
     15132  UNALLOCATED  12.9.150.0/24             1239  SPRINTLINK, US
      3577  UNALLOCATED  12.19.197.0/24             209  CENTURYLINK-US-LEGACY-QWEST,

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
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 No. 14, Jala

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        /8:17       /9:14      /10:41      /11:102     /12:306     
/13:589     /14:1193    /15:1995    /16:13474   /17:8328    /18:13958   
/19:25406   /20:42341   /21:50327   /22:106782  /23:91446   /24:498315  
/25:1372    /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        5714        6753  UNI2-AS, ES
 11492        3807        4781  CABLEONE, US
  6327        3167        3360  SHAW, CA
  7155        3115        4027  VIASAT-SP-BACKBONE, US
  8151        3051        8526  Uninet S.A. de C.V., MX
 22773        2973        3963  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2803        3267  ALJAWWALSTC-AS, SA
  8551        2477        3012  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2247        2580  MEDIACOM-ENTERPRISE-BUSINESS, US
 11830        1933        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)
----------------------------------------------

   1:1887      2:1162      3:142       4:19        5:3559      6:74     
   7:5         8:1537      9:1        11:164      12:1742     13:364    
  14:2307     15:85       16:16       17:323      18:93       20:128    
  21:1        22:188      23:4802     24:2432     25:2        27:2530   
  29:19       31:2283     32:109      34:1        35:44       36:1587   
  37:3772     38:2175     39:624      40:160      41:3796     42:977    
  43:2077     44:260      45:15096    46:3715     47:382      49:1611   
  50:1803     51:101      52:1239     54:225      55:798      56:9      
  57:52       58:1740     59:1204     60:929      61:2332     62:2311   
  63:1965     64:5376     65:2375     66:5050     67:2896     68:1167   
  69:4081     70:1381     71:681      72:3160     74:2595     75:1490   
  76:698      77:2041     78:1713     79:2322     80:1861     81:1514   
  82:1373     83:1147     84:1289     85:2724     86:703      87:1822   
  88:969      89:3013     90:507      91:7344     92:1785     93:2546   
  94:3117     95:3530     96:1297     97:343      98:973      99:969    
 100:93      101:1013    102:1480    103:26243   104:3800    105:441    
 106:794     107:2243    108:727     109:3868    110:2011    111:3146   
 112:1912    113:1513    114:1449    115:1912    116:1900    117:2348   
 118:2381    119:1894    120:1448    121:1072    122:2512    123:2169   
 124:1589    125:2084    128:1312    129:1280    130:869     131:2020   
 132:749     133:358     134:1621    135:298     136:770     137:938    
 138:2373    139:1189    140:762     141:1199    142:1204    143:1300   
 144:1255    145:327     146:1470    147:1349    148:2200    149:1449   
 150:819     151:1084    152:1531    153:414     154:2643    155:1329   
 156:1603    157:1198    158:913     159:2017    160:2327    161:1181   
 162:3336    163:1061    164:1526    165:1414    166:612     167:1779   
 168:3672    169:703     170:4292    171:771     172:2459    173:2980   
 174:988     175:1085    176:3151    177:4363    178:2921    179:1879   
 180:2264    181:2632    182:3204    183:2085    184:2428    185:18414  
 186:4201    187:3082    188:3323    189:2838    190:8871    191:1413   
 192:10717   193:8235    194:6699    195:4792    196:2885    197:2333   
 198:6052    199:6026    200:7436    201:5242    202:10548   203:10104  
 204:4650    205:3362    206:3571    207:3422    208:4015    209:4705   
 210:4260    211:2313    212:3697    213:3475    214:1184    215:59     
 216:6254    217:2570    218:1201    219:707     220:2067    221:954    
 222:879     223:1950   

End of report



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