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[apops] Weekly Routing Table Report



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@lists.apnic.net

For historical data, please see http://thyme.rand.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz@gmail.com>.

Routing Table Report   04:00 +10GMT Sat 22 May, 2021

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

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

BGP routing table entries examined:                              852994
    Prefixes after maximum aggregation (per Origin AS):          321766
    Deaggregation factor:                                          2.65
    Unique aggregates announced (without unneeded subnets):      408191
Total ASes present in the Internet Routing Table:                 71301
    Prefixes per ASN:                                             11.96
Origin-only ASes present in the Internet Routing Table:           61330
Origin ASes announcing only one prefix:                           25315
Transit ASes present in the Internet Routing Table:                9971
Transit-only ASes present in the Internet Routing Table:            310
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      38
    Max AS path prepend of ASN ( 37385)                              33
Prefixes from unregistered ASNs in the Routing Table:              1167
    Number of instances of unregistered ASNs:                      1172
Number of 32-bit ASNs allocated by the RIRs:                      36084
Number of 32-bit ASNs visible in the Routing Table:               30022
Prefixes from 32-bit ASNs in the Routing Table:                  139678
Number of bogon 32-bit ASNs visible in the Routing Table:            22
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            647
Number of addresses announced to Internet:                   3039623808
    Equivalent to 181 /8s, 44 /16s and 250 /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:      284362

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

Prefixes being announced by APNIC Region ASes:                   229410
    Total APNIC prefixes after maximum aggregation:               65589
    APNIC Deaggregation factor:                                    3.50
Prefixes being announced from the APNIC address blocks:          225463
    Unique aggregates announced from the APNIC address blocks:    90076
APNIC Region origin ASes present in the Internet Routing Table:   11607
    APNIC Prefixes per ASN:                                       19.42
APNIC Region origin ASes announcing only one prefix:               3324
APNIC Region transit ASes present in the Internet Routing Table:   1631
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         31
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6761
Number of APNIC addresses announced to Internet:              773922304
    Equivalent to 46 /8s, 33 /16s and 30 /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:                    247633
    Total ARIN prefixes after maximum aggregation:               113176
    ARIN Deaggregation factor:                                     2.19
Prefixes being announced from the ARIN address blocks:           248026
    Unique aggregates announced from the ARIN address blocks:    118149
ARIN Region origin ASes present in the Internet Routing Table:    18811
    ARIN Prefixes per ASN:                                        13.19
ARIN Region origin ASes announcing only one prefix:                6809
ARIN Region transit ASes present in the Internet Routing Table:    1943
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:    3879
Number of ARIN addresses announced to Internet:              1271316992
    Equivalent to 75 /8s, 198 /16s and 194 /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:                    237595
    Total RIPE prefixes after maximum aggregation:               110779
    RIPE Deaggregation factor:                                     2.14
Prefixes being announced from the RIPE address blocks:           233575
    Unique aggregates announced from the RIPE address blocks:    141918
RIPE Region origin ASes present in the Internet Routing Table:    27930
    RIPE Prefixes per ASN:                                         8.36
RIPE Region origin ASes announcing only one prefix:               11985
RIPE Region transit ASes present in the Internet Routing Table:    3890
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          31
Number of RIPE region 32-bit ASNs visible in the Routing Table:   10187
Number of RIPE addresses announced to Internet:               710306944
    Equivalent to 42 /8s, 86 /16s and 108 /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:                  111183
    Total LACNIC prefixes after maximum aggregation:              26481
    LACNIC Deaggregation factor:                                   4.20
Prefixes being announced from the LACNIC address blocks:         112298
    Unique aggregates announced from the LACNIC address blocks:   47061
LACNIC Region origin ASes present in the Internet Routing Table:  10745
    LACNIC Prefixes per ASN:                                      10.45
LACNIC Region origin ASes announcing only one prefix:              2697
LACNIC Region transit ASes present in the Internet Routing Table:  2030
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:  8384
Number of LACNIC addresses announced to Internet:             176203520
    Equivalent to 10 /8s, 128 /16s and 167 /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:                  26005
    Total AfriNIC prefixes after maximum aggregation:              4964
    AfriNIC Deaggregation factor:                                  5.24
Prefixes being announced from the AfriNIC address blocks:         32985
    Unique aggregates announced from the AfriNIC address blocks:  10484
AfriNIC Region origin ASes present in the Internet Routing Table:  1468
    AfriNIC Prefixes per ASN:                                     22.47
AfriNIC Region origin ASes announcing only one prefix:              500
AfriNIC Region transit ASes present in the Internet Routing Table:  305
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  811
Number of AfriNIC addresses announced to Internet:            107411200
    Equivalent to 6 /8s, 102 /16s and 247 /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        7866       8995      52  CMNET-GD Guangdong Mobile Communication
  7545        5790        783     669  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4753       4192      74  ERX-CERNET-BKB China Education and Rese
  7713        3522       1023      56  TELKOMNET-AS-AP PT Telekomunikasi Indon
  7552        3505       1330      20  VIETEL-AS-AP Viettel Group, VN
 45899        2808       1896      54  VNPT-AS-VN VNPT Corp, VN
  4766        2426      11104     562  KIXS-AS-KR Korea Telecom, KR
  9498        2341        482     241  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2127        441     192  TATACOMM-AS TATA Communications formerl
 45090        2116       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        5218       9380    2271  AMAZON-02, US
 11492        4806        318     586  CABLEONE, US
  7155        4027        264      32  VIASAT-SP-BACKBONE, US
 22773        3938       3002     247  ASN-CXA-ALL-CCI-22773-RDC, US
 16625        3448       1769    2425  AKAMAI-AS, US
  6327        3360       1317      68  SHAW, CA
 30036        2570        373     127  MEDIACOM-ENTERPRISE-BUSINESS, US
   209        2524       5035     480  CENTURYLINK-US-LEGACY-QWEST, US
  5972        2242        452     779  DNIC-ASBLK-05800-06055, US
 20115        2170       2928     508  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        6639       1725     146  UNI2-AS, ES
 20940        3604       3347     202  AKAMAI-ASN1, NL
 39891        3266        187      22  ALJAWWALSTC-AS, SA
  8551        3097        378      40  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2917       2281     892  ROSTELECOM-AS, RU
  9009        2427        253    1304  M247, GB
 34984        2203        355     591  TELLCOM-AS, TR
 13188        1609        100      31  TRIOLAN, UA
 58224        1600        886     579  TCI, IR
 61317        1548        284     785  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        8601       3483     571  Uninet S.A. de C.V., MX
 10620        3422        526     613  Telmex Colombia S.A., CO
 11830        2494        369      62  Instituto Costarricense de Electricidad
 13999        1725        434     444  Mega Cable, S.A. de C.V., MX
  6503        1450        311     476  Axtel, S.A.B. de C.V., MX
 28573        1381       2282     226  CLARO S.A., BR
  3816        1233        648     150  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1120        377      38  Telefonica del Peru S.A.A., PE
 11664         998        208     419  Techtel LMDS Comunicaciones Interactiva
 11172         964        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        1591        393      22  LINKdotNET-AS, EG
 24835        1452        494      28  RAYA-AS, EG
 36992        1196       1473     176  ETISALAT-MISR, EG
 36903        1183        537     110  MT-MPLS, MA
 29571         731         68      11  ORANGE-COTE-IVOIRE, CI
  6713         613       1863      34  IAM-AS, MA
 36935         526        522      40  Vodafone-, EG
 37342         487         32       1  MOVITEL, MZ
 15399         481         48      24  WANANCHI-, KE
 23889         439        232      16  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        8601       3483     571  Uninet S.A. de C.V., MX
  9808        7866       8995      52  CMNET-GD Guangdong Mobile Communication
 12479        6639       1725     146  UNI2-AS, ES
  7545        5790        783     669  TPG-INTERNET-AP TPG Telecom Limited, AU
 16509        5218       9380    2271  AMAZON-02, US
 11492        4806        318     586  CABLEONE, US
  4538        4753       4192      74  ERX-CERNET-BKB China Education and Rese
  7155        4027        264      32  VIASAT-SP-BACKBONE, US
 22773        3938       3002     247  ASN-CXA-ALL-CCI-22773-RDC, US
 20940        3604       3347     202  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        7866         7814  CMNET-GD Guangdong Mobile Communication Co.Ltd.
 12479        6639         6493  UNI2-AS, ES
  7545        5790         5121  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4753         4679  ERX-CERNET-BKB China Education and Research Net
 11492        4806         4220  CABLEONE, US
  7155        4027         3995  VIASAT-SP-BACKBONE, US
 22773        3938         3691  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3505         3485  VIETEL-AS-AP Viettel Group, VN
  7713        3522         3466  TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
 20940        3604         3402  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
5.181.53.0/24        Origin:     48402  VIOUSLY, FR
                    Transit:      8218  NEO-ASN legacy Neotelecoms, FR
23.141.0.0/24        Origin:    395350  UNASSIGNED
                    Transit:     11426  TWC-11426-CAROLINAS, US
23.142.80.0/24       Origin:    398481  REDMERCURY, US
                    Transit:    209319  IPV6ROUTING, 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 

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     /14:1190    /15:1996    /16:13482   /17:8331    /18:13927   
/19:25796   /20:42259   /21:50247   /22:106775  /23:91043   /24:495481  
/25:1402    /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        5596        6639  UNI2-AS, ES
 11492        3835        4806  CABLEONE, US
  6327        3167        3360  SHAW, CA
  8151        3152        8601  Uninet S.A. de C.V., MX
  7155        3115        4027  VIASAT-SP-BACKBONE, US
 22773        2967        3938  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2801        3266  ALJAWWALSTC-AS, SA
  8551        2562        3097  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2237        2570  MEDIACOM-ENTERPRISE-BUSINESS, US
 11830        1917        2494  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)
----------------------------------------------

   1:1890      2:1195      3:128       4:20        5:3563      6:66     
   7:5         8:1529      9:1        11:164      12:1743     13:364    
  14:2309     15:75       16:15       17:323      18:107      20:128    
  21:1        22:188      23:4744     24:2425     25:2        27:2524   
  29:19       31:2317     32:113      34:16       35:45       36:1561   
  37:3773     38:2142     39:624      40:159      41:3864     42:939    
  43:2104     44:253      45:14910    46:3698     47:319      49:1613   
  50:1784     51:100      52:1278     54:240      55:756      56:7      
  57:54       58:1708     59:1202     60:919      61:2318     62:2267   
  63:1969     64:5332     65:2381     66:5020     67:2901     68:1166   
  69:4062     70:1384     71:681      72:3164     74:2594     75:1488   
  76:691      77:2002     78:1694     79:2257     80:1873     81:1503   
  82:1374     83:1132     84:1276     85:2684     86:707      87:1820   
  88:968      89:3006     90:466      91:7320     92:1770     93:2531   
  94:3123     95:3518     96:1282     97:345      98:996      99:970    
 100:94      101:1037    102:1429    103:26087   104:3745    105:434    
 106:720     107:2275    108:716     109:4018    110:2005    111:3177   
 112:1981    113:1540    114:1459    115:1911    116:1889    117:2375   
 118:2345    119:1886    120:1468    121:1064    122:2274    123:2209   
 124:1591    125:2061    128:1261    129:1261    130:859     131:2032   
 132:754     133:356     134:1620    135:294     136:742     137:931    
 138:2314    139:1169    140:732     141:1182    142:1193    143:1294   
 144:1261    145:329     146:1410    147:1317    148:2196    149:1429   
 150:812     151:1073    152:1549    153:410     154:2456    155:1328   
 156:1510    157:1180    158:912     159:2043    160:2316    161:1165   
 162:3296    163:997     164:1519    165:1393    166:603     167:1771   
 168:3616    169:686     170:4263    171:770     172:2369    173:2954   
 174:995     175:1082    176:3153    177:4343    178:2906    179:1931   
 180:2264    181:2619    182:3205    183:2065    184:2420    185:18239  
 186:4208    187:3103    188:3293    189:2897    190:8854    191:1419   
 192:10676   193:8114    194:6613    195:4720    196:2886    197:2393   
 198:6081    199:6022    200:7411    201:5270    202:10588   203:10109  
 204:4644    205:3318    206:3527    207:3376    208:4014    209:4691   
 210:4242    211:2239    212:3688    213:3361    214:1217    215:62     
 216:6186    217:2518    218:1209    219:707     220:2079    221:981    
 222:881     223:1884   

End of report