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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 15 May, 2021

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

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

BGP routing table entries examined:                              851970
    Prefixes after maximum aggregation (per Origin AS):          321487
    Deaggregation factor:                                          2.65
    Unique aggregates announced (without unneeded subnets):      407186
Total ASes present in the Internet Routing Table:                 71239
    Prefixes per ASN:                                             11.96
Origin-only ASes present in the Internet Routing Table:           61261
Origin ASes announcing only one prefix:                           25251
Transit ASes present in the Internet Routing Table:                9978
Transit-only ASes present in the Internet Routing Table:            314
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:              1233
    Number of instances of unregistered ASNs:                      1240
Number of 32-bit ASNs allocated by the RIRs:                      36004
Number of 32-bit ASNs visible in the Routing Table:               29962
Prefixes from 32-bit ASNs in the Routing Table:                  139452
Number of bogon 32-bit ASNs visible in the Routing Table:            24
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            710
Number of addresses announced to Internet:                   3040375168
    Equivalent to 181 /8s, 56 /16s and 113 /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:      284089

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

Prefixes being announced by APNIC Region ASes:                   229147
    Total APNIC prefixes after maximum aggregation:               65476
    APNIC Deaggregation factor:                                    3.50
Prefixes being announced from the APNIC address blocks:          225282
    Unique aggregates announced from the APNIC address blocks:    89780
APNIC Region origin ASes present in the Internet Routing Table:   11588
    APNIC Prefixes per ASN:                                       19.44
APNIC Region origin ASes announcing only one prefix:               3319
APNIC Region transit ASes present in the Internet Routing Table:   1632
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         30
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6741
Number of APNIC addresses announced to Internet:              774067200
    Equivalent to 46 /8s, 35 /16s and 84 /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:                    247299
    Total ARIN prefixes after maximum aggregation:               113170
    ARIN Deaggregation factor:                                     2.19
Prefixes being announced from the ARIN address blocks:           247651
    Unique aggregates announced from the ARIN address blocks:    117566
ARIN Region origin ASes present in the Internet Routing Table:    18789
    ARIN Prefixes per ASN:                                        13.18
ARIN Region origin ASes announcing only one prefix:                6795
ARIN Region transit ASes present in the Internet Routing Table:    1935
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          30
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3865
Number of ARIN addresses announced to Internet:              1271955712
    Equivalent to 75 /8s, 208 /16s and 129 /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:                    236896
    Total RIPE prefixes after maximum aggregation:               110655
    RIPE Deaggregation factor:                                     2.14
Prefixes being announced from the RIPE address blocks:           232910
    Unique aggregates announced from the RIPE address blocks:    141809
RIPE Region origin ASes present in the Internet Routing Table:    27907
    RIPE Prefixes per ASN:                                         8.35
RIPE Region origin ASes announcing only one prefix:               11976
RIPE Region transit ASes present in the Internet Routing Table:    3892
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:   10165
Number of RIPE addresses announced to Internet:               710280576
    Equivalent to 42 /8s, 86 /16s and 5 /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:                  111451
    Total LACNIC prefixes after maximum aggregation:              26439
    LACNIC Deaggregation factor:                                   4.22
Prefixes being announced from the LACNIC address blocks:         112554
    Unique aggregates announced from the LACNIC address blocks:   47054
LACNIC Region origin ASes present in the Internet Routing Table:  10737
    LACNIC Prefixes per ASN:                                      10.48
LACNIC Region origin ASes announcing only one prefix:              2669
LACNIC Region transit ASes present in the Internet Routing Table:  2037
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:  8386
Number of LACNIC addresses announced to Internet:             176161280
    Equivalent to 10 /8s, 128 /16s and 2 /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:                  25943
    Total AfriNIC prefixes after maximum aggregation:              4944
    AfriNIC Deaggregation factor:                                  5.25
Prefixes being announced from the AfriNIC address blocks:         32863
    Unique aggregates announced from the AfriNIC address blocks:  10439
AfriNIC Region origin ASes present in the Internet Routing Table:  1459
    AfriNIC Prefixes per ASN:                                     22.52
AfriNIC Region origin ASes announcing only one prefix:              492
AfriNIC Region transit ASes present in the Internet Routing Table:  301
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:  805
Number of AfriNIC addresses announced to Internet:            107426560
    Equivalent to 6 /8s, 103 /16s and 51 /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        7824       8995      52  CMNET-GD Guangdong Mobile Communication
  7545        5767        782     671  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4762       4192      74  ERX-CERNET-BKB China Education and Rese
  7713        3520       1023      56  TELKOMNET-AS-AP PT Telekomunikasi Indon
  7552        3484       1330      20  VIETEL-AS-AP Viettel Group, VN
 45899        2806       1896      54  VNPT-AS-VN VNPT Corp, VN
  4766        2418      11104     563  KIXS-AS-KR Korea Telecom, KR
  9498        2341        482     242  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2127        441     192  TATACOMM-AS TATA Communications formerl
 45090        2121       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        5137       9377    2263  AMAZON-02, US
 11492        4778        316     592  CABLEONE, US
  7155        4027        264      32  VIASAT-SP-BACKBONE, US
 22773        3923       2998     246  ASN-CXA-ALL-CCI-22773-RDC, US
 16625        3448       1772    2426  AKAMAI-AS, US
  6327        3358       1317      68  SHAW, CA
 30036        2565        373     135  MEDIACOM-ENTERPRISE-BUSINESS, US
   209        2528       5037     485  CENTURYLINK-US-LEGACY-QWEST, US
  5972        2236        451     778  DNIC-ASBLK-05800-06055, US
 20115        2171       2929     509  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        6640       1725     146  UNI2-AS, ES
 20940        3596       3347     202  AKAMAI-ASN1, NL
 39891        3266        187      22  ALJAWWALSTC-AS, SA
  8551        3107        378      40  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2902       2281     890  ROSTELECOM-AS, RU
  9009        2435        250    1306  M247, GB
 34984        2221        357     588  TELLCOM-AS, TR
 13188        1607        100      37  TRIOLAN, UA
 58224        1597        886     579  TCI, IR
 61317        1530        283     776  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        8573       3480     572  Uninet S.A. de C.V., MX
 10620        3422        526     613  Telmex Colombia S.A., CO
 11830        2492        369      62  Instituto Costarricense de Electricidad
 13999        1710        434     441  Mega Cable, S.A. de C.V., MX
  6503        1445        311     477  Axtel, S.A.B. de C.V., MX
 28573        1403       2281     225  CLARO S.A., BR
  3816        1233        648     150  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1121        377      38  Telefonica del Peru S.A.A., PE
 11664        1004        210     406  Techtel LMDS Comunicaciones Interactiva
 11172         973        112      72  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        1590        393      22  LINKdotNET-AS, EG
 24835        1452        494      28  RAYA-AS, EG
 36992        1194       1472     179  ETISALAT-MISR, EG
 36903        1183        537     110  MT-MPLS, MA
 29571         731         68      11  ORANGE-COTE-IVOIRE, CI
  6713         592       1863      34  IAM-AS, MA
 36935         524        522      40  Vodafone-, EG
 37342         487         32       1  MOVITEL, MZ
 15399         482         48      22  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        8573       3480     572  Uninet S.A. de C.V., MX
  9808        7824       8995      52  CMNET-GD Guangdong Mobile Communication
 12479        6640       1725     146  UNI2-AS, ES
  7545        5767        782     671  TPG-INTERNET-AP TPG Telecom Limited, AU
 16509        5137       9377    2263  AMAZON-02, US
 11492        4778        316     592  CABLEONE, US
  4538        4762       4192      74  ERX-CERNET-BKB China Education and Rese
  7155        4027        264      32  VIASAT-SP-BACKBONE, US
 22773        3923       2998     246  ASN-CXA-ALL-CCI-22773-RDC, US
 20940        3596       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        7824         7772  CMNET-GD Guangdong Mobile Communication Co.Ltd.
 12479        6640         6494  UNI2-AS, ES
  7545        5767         5096  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4762         4688  ERX-CERNET-BKB China Education and Research Net
 11492        4778         4186  CABLEONE, US
  7155        4027         3995  VIASAT-SP-BACKBONE, US
 22773        3923         3677  ASN-CXA-ALL-CCI-22773-RDC, US
  7713        3520         3464  TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
  7552        3484         3464  VIETEL-AS-AP Viettel Group, VN
 20940        3596         3394  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:    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 
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        /8:16       /9:13      /10:41      /11:103     /12:306     
/13:589     /14:1191    /15:1998    /16:13482   /17:8311    /18:13918   
/19:25748   /20:42230   /21:50133   /22:106695  /23:90968   /24:494820  
/25:1408    /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        6640  UNI2-AS, ES
 11492        3822        4778  CABLEONE, US
  6327        3167        3358  SHAW, CA
  8151        3129        8573  Uninet S.A. de C.V., MX
  7155        3115        4027  VIASAT-SP-BACKBONE, US
 22773        2960        3923  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2801        3266  ALJAWWALSTC-AS, SA
  8551        2572        3107  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2232        2565  MEDIACOM-ENTERPRISE-BUSINESS, US
 11830        1916        2492  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)
----------------------------------------------

   1:1882      2:1197      3:122       4:19        5:3547      6:65     
   7:5         8:1524      9:1        11:164      12:1744     13:363    
  14:2295     15:76       16:15       17:322      18:93       20:128    
  21:1        22:188      23:4712     24:2416     25:2        27:2520   
  29:19       31:2315     32:111      34:2        35:39       36:1560   
  37:3771     38:2089     39:623      40:159      41:3841     42:935    
  43:2109     44:249      45:14956    46:3703     47:319      49:1611   
  50:1778     51:100      52:1254     54:224      55:750      56:8      
  57:54       58:1704     59:1202     60:918      61:2332     62:2270   
  63:1964     64:5345     65:2380     66:5088     67:2900     68:1162   
  69:4088     70:1383     71:682      72:3171     74:2590     75:1487   
  76:686      77:2005     78:1693     79:2258     80:1863     81:1503   
  82:1374     83:1126     84:1274     85:2720     86:713      87:1800   
  88:960      89:2979     90:463      91:7310     92:1756     93:2513   
  94:3110     95:3506     96:1281     97:347      98:995      99:971    
 100:92      101:1034    102:1419    103:26025   104:3732    105:436    
 106:728     107:2270    108:719     109:4012    110:1995    111:3183   
 112:1978    113:1534    114:1459    115:1909    116:1890    117:2362   
 118:2346    119:1884    120:1473    121:1064    122:2272    123:2217   
 124:1585    125:2061    128:1252    129:1241    130:851     131:2034   
 132:755     133:360     134:1615    135:294     136:743     137:929    
 138:2320    139:1173    140:731     141:1185    142:1192    143:1282   
 144:1258    145:329     146:1415    147:1309    148:2214    149:1414   
 150:814     151:1074    152:1548    153:399     154:2467    155:1326   
 156:1497    157:1176    158:911     159:2043    160:2127    161:1163   
 162:3300    163:993     164:1523    165:1395    166:595     167:1774   
 168:3598    169:684     170:4271    171:770     172:2332    173:2948   
 174:993     175:1086    176:3134    177:4351    178:2901    179:1924   
 180:2267    181:2617    182:3207    183:2050    184:2420    185:18235  
 186:4197    187:3106    188:3293    189:2888    190:8868    191:1416   
 192:10682   193:8097    194:6604    195:4722    196:2878    197:2387   
 198:6064    199:6020    200:7421    201:5330    202:10581   203:10108  
 204:4644    205:3334    206:3535    207:3384    208:4010    209:4654   
 210:4261    211:2241    212:3684    213:3364    214:1211    215:62     
 216:6181    217:2511    218:1211    219:710     220:2073    221:986    
 222:880     223:1882   

End of report