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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 01 May, 2021

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

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

BGP routing table entries examined:                              857706
    Prefixes after maximum aggregation (per Origin AS):          324495
    Deaggregation factor:                                          2.64
    Unique aggregates announced (without unneeded subnets):      407244
Total ASes present in the Internet Routing Table:                 71169
    Prefixes per ASN:                                             12.05
Origin-only ASes present in the Internet Routing Table:           61198
Origin ASes announcing only one prefix:                           25266
Transit ASes present in the Internet Routing Table:                9971
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:              1058
    Number of instances of unregistered ASNs:                      1065
Number of 32-bit ASNs allocated by the RIRs:                      35885
Number of 32-bit ASNs visible in the Routing Table:               29866
Prefixes from 32-bit ASNs in the Routing Table:                  139106
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:            584
Number of addresses announced to Internet:                   3031167104
    Equivalent to 180 /8s, 171 /16s and 240 /24s
    Percentage of available address space announced:               81.9
    Percentage of allocated address space announced:               81.9
    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:      291034

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

Prefixes being announced by APNIC Region ASes:                   226664
    Total APNIC prefixes after maximum aggregation:               65431
    APNIC Deaggregation factor:                                    3.46
Prefixes being announced from the APNIC address blocks:          222811
    Unique aggregates announced from the APNIC address blocks:    89728
APNIC Region origin ASes present in the Internet Routing Table:   11550
    APNIC Prefixes per ASN:                                       19.29
APNIC Region origin ASes announcing only one prefix:               3306
APNIC Region transit ASes present in the Internet Routing Table:   1631
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         31
Number of APNIC region 32-bit ASNs visible in the Routing Table:   6706
Number of APNIC addresses announced to Internet:              772731136
    Equivalent to 46 /8s, 14 /16s and 241 /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, 131072-143673
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:                    246824
    Total ARIN prefixes after maximum aggregation:               113053
    ARIN Deaggregation factor:                                     2.18
Prefixes being announced from the ARIN address blocks:           247249
    Unique aggregates announced from the ARIN address blocks:    117945
ARIN Region origin ASes present in the Internet Routing Table:    18784
    ARIN Prefixes per ASN:                                        13.16
ARIN Region origin ASes announcing only one prefix:                6807
ARIN Region transit ASes present in the Internet Routing Table:    1946
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:    3837
Number of ARIN addresses announced to Internet:              1263470848
    Equivalent to 75 /8s, 79 /16s and 9 /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:                    244439
    Total RIPE prefixes after maximum aggregation:               113954
    RIPE Deaggregation factor:                                     2.15
Prefixes being announced from the RIPE address blocks:           240409
    Unique aggregates announced from the RIPE address blocks:    141609
RIPE Region origin ASes present in the Internet Routing Table:    27893
    RIPE Prefixes per ASN:                                         8.62
RIPE Region origin ASes announcing only one prefix:               11960
RIPE Region transit ASes present in the Internet Routing Table:    3884
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:   10144
Number of RIPE addresses announced to Internet:               711052928
    Equivalent to 42 /8s, 97 /16s and 206 /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:                  112824
    Total LACNIC prefixes after maximum aggregation:              26370
    LACNIC Deaggregation factor:                                   4.28
Prefixes being announced from the LACNIC address blocks:         113923
    Unique aggregates announced from the LACNIC address blocks:   46956
LACNIC Region origin ASes present in the Internet Routing Table:  10757
    LACNIC Prefixes per ASN:                                      10.59
LACNIC Region origin ASes announcing only one prefix:              2700
LACNIC Region transit ASes present in the Internet Routing Table:  2046
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        30
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8378
Number of LACNIC addresses announced to Internet:             176418304
    Equivalent to 10 /8s, 131 /16s and 238 /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:                  25896
    Total AfriNIC prefixes after maximum aggregation:              4931
    AfriNIC Deaggregation factor:                                  5.25
Prefixes being announced from the AfriNIC address blocks:         32730
    Unique aggregates announced from the AfriNIC address blocks:  10479
AfriNIC Region origin ASes present in the Internet Routing Table:  1451
    AfriNIC Prefixes per ASN:                                     22.56
AfriNIC Region origin ASes announcing only one prefix:              493
AfriNIC Region transit ASes present in the Internet Routing Table:  299
Average AfriNIC Region AS path length visible:                      5.2
    Max AfriNIC Region AS path length visible:                       38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  801
Number of AfriNIC addresses announced to Internet:            107045632
    Equivalent to 6 /8s, 97 /16s and 99 /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        6348       8996      55  CMNET-GD Guangdong Mobile Communication
  7545        5724        782     671  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4763       4192      74  ERX-CERNET-BKB China Education and Rese
  7713        3494       1022      58  TELKOMNET-AS-AP PT Telekomunikasi Indon
  7552        3492       1330      20  VIETEL-AS-AP Viettel Group, VN
 45899        2804       1896      54  VNPT-AS-VN VNPT Corp, VN
  4766        2427      11104     563  KIXS-AS-KR Korea Telecom, KR
  9498        2338        481     237  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2120        441     191  TATACOMM-AS TATA Communications formerl
 45090        2097       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        5053       9361    2230  AMAZON-02, US
 11492        4777        316     640  CABLEONE, US
  7155        4030        264      32  VIASAT-SP-BACKBONE, US
 22773        3927       3006     245  ASN-CXA-ALL-CCI-22773-RDC, US
 16625        3478       1794    2446  AKAMAI-AS, US
  6327        3359       1317      68  SHAW, CA
 30036        2562        373     130  MEDIACOM-ENTERPRISE-BUSINESS, US
   209        2532       5037     483  CENTURYLINK-US-LEGACY-QWEST, US
  5650        2298       2989    1606  FRONTIER-FRTR, US
  5972        2233        452     781  DNIC-ASBLK-05800-06055, 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
 47331        7794       1046    3497  TTNET, TR
 12479        6566       1725     145  UNI2-AS, ES
 20940        3599       3347     204  AKAMAI-ASN1, NL
 39891        3266        187      22  ALJAWWALSTC-AS, SA
  8551        3248        378      40  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2914       2284     898  ROSTELECOM-AS, RU
  9009        2419        247    1297  M247, GB
 34984        2216        357     586  TELLCOM-AS, TR
 13188        1610        100      31  TRIOLAN, UA
 58224        1586        885     582  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        8535       3476     577  Uninet S.A. de C.V., MX
 10620        3417        527     609  Telmex Colombia S.A., CO
 11830        2494        369      62  Instituto Costarricense de Electricidad
  7303        1970       2058      69  Telecom Argentina S.A., AR
 13999        1685        447     429  Mega Cable, S.A. de C.V., MX
  6503        1445        311     477  Axtel, S.A.B. de C.V., MX
 28573        1374       2280     225  CLARO S.A., BR
  3816        1229        644     147  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1131        377      39  Telefonica del Peru S.A.A., PE
 11664        1002        210     400  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        1586        393      22  LINKdotNET-AS, EG
 24835        1445        494      28  RAYA-AS, EG
 36992        1185       1473     176  ETISALAT-MISR, EG
 36903        1183        537     110  MT-MPLS, MA
 29571         731         68      11  ORANGE-COTE-IVOIRE, CI
  6713         594       1863      34  IAM-AS, MA
 36935         521        522      40  Vodafone-, EG
 37342         487         32       1  MOVITEL, MZ
 15399         474         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        8535       3476     577  Uninet S.A. de C.V., MX
 47331        7794       1046    3497  TTNET, TR
 12479        6566       1725     145  UNI2-AS, ES
  9808        6348       8996      55  CMNET-GD Guangdong Mobile Communication
  7545        5724        782     671  TPG-INTERNET-AP TPG Telecom Limited, AU
 16509        5053       9361    2230  AMAZON-02, US
 11492        4777        316     640  CABLEONE, US
  4538        4763       4192      74  ERX-CERNET-BKB China Education and Rese
  7155        4030        264      32  VIASAT-SP-BACKBONE, US
 22773        3927       3006     245  ASN-CXA-ALL-CCI-22773-RDC, US

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

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

   ASN  No of nets  Net Savings  Description
 12479        6566         6421  UNI2-AS, ES
  9808        6348         6293  CMNET-GD Guangdong Mobile Communication Co.Ltd.
  7545        5724         5053  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4763         4689  ERX-CERNET-BKB China Education and Research Net
 47331        7794         4297  TTNET, TR
 11492        4777         4137  CABLEONE, US
  7155        4030         3998  VIASAT-SP-BACKBONE, US
 22773        3927         3682  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3492         3472  VIETEL-AS-AP Viettel Group, VN
  7713        3494         3436  TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID

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
     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
      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:    398481  REDMERCURY, US
                    Transit:    209319  IPV6ROUTING, 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
27.126.156.0/23      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     /12:297     
/13:586     /14:1193    /15:2001    /16:13501   /17:8335    /18:13881   
/19:25802   /20:42489   /21:51438   /22:106854  /23:91355   /24:498401  
/25:1400    /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
 47331        6972        7794  TTNET, TR
 12479        5518        6566  UNI2-AS, ES
 11492        3823        4777  CABLEONE, US
  6327        3168        3359  SHAW, CA
  7155        3118        4030  VIASAT-SP-BACKBONE, US
  8151        3100        8535  Uninet S.A. de C.V., MX
 22773        2962        3927  ASN-CXA-ALL-CCI-22773-RDC, US
 39891        2801        3266  ALJAWWALSTC-AS, SA
  8551        2713        3248  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 30036        2233        2562  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1884      2:1210      3:122       4:19        5:3535      6:65     
   7:5         8:1521      9:1        11:164      12:1752     13:358    
  14:2280     15:75       16:15       17:322      18:93       20:128    
  21:1        22:188      23:4684     24:2397     25:2        27:2517   
  29:19       31:2336     32:113      34:2        35:39       36:1320   
  37:3767     38:2073     39:613      40:159      41:3872     42:927    
  43:2117     44:240      45:14999    46:3664     47:320      49:1602   
  50:1772     51:92       52:1237     54:223      55:774      56:8      
  57:58       58:1715     59:1201     60:895      61:2339     62:2236   
  63:1959     64:5321     65:2387     66:5151     67:2887     68:1156   
  69:4082     70:1399     71:687      72:3185     74:2591     75:1486   
  76:687      77:2023     78:3692     79:2413     80:1875     81:1643   
  82:1360     83:1126     84:1274     85:3387     86:706      87:1797   
  88:2699     89:2990     90:448      91:7320     92:1755     93:2520   
  94:3109     95:4443     96:1277     97:346      98:990      99:971    
 100:91      101:1049    102:1404    103:26044   104:3744    105:436    
 106:725     107:2267    108:713     109:4004    110:2007    111:2957   
 112:1961    113:1537    114:1455    115:1893    116:1894    117:2315   
 118:2337    119:1874    120:1113    121:1064    122:2273    123:2206   
 124:1572    125:2062    128:1203    129:1094    130:851     131:2022   
 132:752     133:356     134:1597    135:290     136:749     137:924    
 138:2296    139:1169    140:725     141:1189    142:1163    143:1270   
 144:1262    145:330     146:1414    147:1306    148:2211    149:1410   
 150:810     151:1075    152:1560    153:394     154:2413    155:1326   
 156:1495    157:1177    158:917     159:2041    160:2112    161:1148   
 162:3289    163:988     164:1512    165:1383    166:595     167:1777   
 168:3593    169:683     170:4268    171:771     172:2160    173:2955   
 174:992     175:1085    176:3125    177:4296    178:2894    179:1941   
 180:2267    181:2594    182:3211    183:1844    184:2428    185:18189  
 186:4205    187:3175    188:3300    189:2854    190:8821    191:1367   
 192:10682   193:8052    194:6596    195:4728    196:2887    197:2383   
 198:6054    199:6029    200:7400    201:5327    202:10571   203:10110  
 204:4658    205:3332    206:3560    207:3370    208:4014    209:4666   
 210:4261    211:2197    212:3684    213:3349    214:1227    215:61     
 216:6179    217:2540    218:1163    219:710     220:2084    221:961    
 222:880     223:1864   

End of report