[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Apr 10 18:03:29 UTC 2020


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 11 Apr, 2020

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

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

BGP routing table entries examined:                              805484
    Prefixes after maximum aggregation (per Origin AS):          305957
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      393305
Total ASes present in the Internet Routing Table:                 67689
    Prefixes per ASN:                                             11.90
Origin-only ASes present in the Internet Routing Table:           58122
Origin ASes announcing only one prefix:                           24256
Transit ASes present in the Internet Routing Table:                9567
Transit-only ASes present in the Internet Routing Table:            295
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      38
    Max AS path prepend of ASN ( 27978)                              31
Prefixes from unregistered ASNs in the Routing Table:              1239
    Number of instances of unregistered ASNs:                      1242
Number of 32-bit ASNs allocated by the RIRs:                      31261
Number of 32-bit ASNs visible in the Routing Table:               25806
Prefixes from 32-bit ASNs in the Routing Table:                  119426
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:           1117
Number of addresses announced to Internet:                   2854271488
    Equivalent to 170 /8s, 32 /16s and 186 /24s
    Percentage of available address space announced:               77.1
    Percentage of allocated address space announced:               77.1
    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:      271215

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

Prefixes being announced by APNIC Region ASes:                   212043
    Total APNIC prefixes after maximum aggregation:               61938
    APNIC Deaggregation factor:                                    3.42
Prefixes being announced from the APNIC address blocks:          204843
    Unique aggregates announced from the APNIC address blocks:    85571
APNIC Region origin ASes present in the Internet Routing Table:   10519
    APNIC Prefixes per ASN:                                       19.47
APNIC Region origin ASes announcing only one prefix:               2924
APNIC Region transit ASes present in the Internet Routing Table:   1565
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         35
Number of APNIC region 32-bit ASNs visible in the Routing Table:   5585
Number of APNIC addresses announced to Internet:              766795648
    Equivalent to 45 /8s, 180 /16s and 95 /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, 131072-141625
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:                    235626
    Total ARIN prefixes after maximum aggregation:               108397
    ARIN Deaggregation factor:                                     2.17
Prefixes being announced from the ARIN address blocks:           233072
    Unique aggregates announced from the ARIN address blocks:    118306
ARIN Region origin ASes present in the Internet Routing Table:    18423
    ARIN Prefixes per ASN:                                        12.65
ARIN Region origin ASes announcing only one prefix:                6716
ARIN Region transit ASes present in the Internet Routing Table:    1912
Average ARIN Region AS path length visible:                         3.9
    Max ARIN Region AS path length visible:                          22
Number of ARIN region 32-bit ASNs visible in the Routing Table:    3200
Number of ARIN addresses announced to Internet:              1079232768
    Equivalent to 64 /8s, 83 /16s and 201 /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, 393216-399260
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:                    228817
    Total RIPE prefixes after maximum aggregation:               105651
    RIPE Deaggregation factor:                                     2.17
Prefixes being announced from the RIPE address blocks:           225628
    Unique aggregates announced from the RIPE address blocks:    132097
RIPE Region origin ASes present in the Internet Routing Table:    26999
    RIPE Prefixes per ASN:                                         8.36
RIPE Region origin ASes announcing only one prefix:               11735
RIPE Region transit ASes present in the Internet Routing Table:    3828
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          31
Number of RIPE region 32-bit ASNs visible in the Routing Table:    9086
Number of RIPE addresses announced to Internet:               724642176
    Equivalent to 43 /8s, 49 /16s and 41 /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:                  105579
    Total LACNIC prefixes after maximum aggregation:              24490
    LACNIC Deaggregation factor:                                   4.31
Prefixes being announced from the LACNIC address blocks:         106900
    Unique aggregates announced from the LACNIC address blocks:   46248
LACNIC Region origin ASes present in the Internet Routing Table:   9686
    LACNIC Prefixes per ASN:                                      11.04
LACNIC Region origin ASes announcing only one prefix:              2399
LACNIC Region transit ASes present in the Internet Routing Table:  1837
Average LACNIC Region AS path length visible:                       5.5
    Max LACNIC Region AS path length visible:                        38
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  7264
Number of LACNIC addresses announced to Internet:             174542592
    Equivalent to 10 /8s, 103 /16s and 79 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-270748 + 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:                  22179
    Total AfriNIC prefixes after maximum aggregation:              4713
    AfriNIC Deaggregation factor:                                  4.71
Prefixes being announced from the AfriNIC address blocks:         33924
    Unique aggregates announced from the AfriNIC address blocks:  10107
AfriNIC Region origin ASes present in the Internet Routing Table:  1379
    AfriNIC Prefixes per ASN:                                     24.60
AfriNIC Region origin ASes announcing only one prefix:              482
AfriNIC Region transit ASes present in the Internet Routing Table:  273
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       23
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  671
Number of AfriNIC addresses announced to Internet:            108475648
    Equivalent to 6 /8s, 119 /16s and 53 /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
  7545        5388        681     629  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4335       4192      73  ERX-CERNET-BKB China Education and Rese
  7552        3390       1330      22  VIETEL-AS-AP Viettel Group, VN
 45899        3146       1802     105  VNPT-AS-VN VNPT Corp, VN
  7713        2706        831     503  TELKOMNET-AS-AP PT Telekomunikasi Indon
  9808        2569       9043      61  CMNET-GD Guangdong Mobile Communication
  4766        2289      11102     560  KIXS-AS-KR Korea Telecom, KR
  9498        2258        434     221  BBIL-AP BHARTI Airtel Ltd., IN
  4755        2134        441     192  TATACOMM-AS TATA Communications formerl
  9394        2035       4898      24  CTTNET China TieTong Telecommunications

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
 11492        4095        273     633  CABLEONE, US
  7155        4034        280      28  VIASAT-SP-BACKBONE, US
 16509        3959       7856    1747  AMAZON-02, US
 22773        3532       2969     152  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3364       1324      92  SHAW, CA
 16625        3032       1582    2163  AKAMAI-AS, US
   209        2386       5077     537  CENTURYLINK-US-LEGACY-QWEST, US
 30036        2353        361      92  MEDIACOM-ENTERPRISE-BUSINESS, US
  5650        2300       2981    1621  FRONTIER-FRTR, US
 26484        2195        137     171  IKGUL-26484, 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        5830       1603     132  UNI2-AS, ES
 31334        4836        484      13  KABELDEUTSCHLAND-AS, DE
 39891        3651        203      20  ALJAWWALSTC-AS, SA
  8551        3179        379      45  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 20940        2967        467    2032  AKAMAI-ASN1, US
 12389        2494       2250     726  ROSTELECOM-AS, RU
  9009        2151        226    1163  M247, GB
 34984        2055        350     563  TELLCOM-AS, TR
  9121        1871       1691      18  TTNET, TR
 13188        1606        100      36  TRIOLAN, UA

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        6381       3307     603  Uninet S.A. de C.V., MX
 10620        3358        530     515  Telmex Colombia S.A., CO
 11830        2671        369      63  Instituto Costarricense de Electricidad
  6503        1677        327     387  Axtel, S.A.B. de C.V., MX
  7303        1554       1032     259  Telecom Argentina S.A., AR
 28573        1368       2242     204  CLARO S.A., BR
 13999        1278        479     327  Mega Cable, S.A. de C.V., MX
  6147        1139        379      39  Telefonica del Peru S.A.A., PE
  3816        1096        564     146  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
 11172         956        112      71  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        1382        393      20  LINKdotNET-AS, EG
 36992        1079       1537      74  ETISALAT-MISR, EG
 24835        1070        574      25  RAYA-AS, EG
 36903         890        467      88  MT-MPLS, MA
 29571         592         68      12  ORANGE-COTE-IVOIRE, CI
  6713         587       1863      34  IAM-AS, MA
 37342         480         32       1  MOVITEL, MZ
 36935         387        521      47  Vodafone-, EG
 23889         382        231      15  MauritiusTelecom, MU
 15399         338         45      10  WANANCHI-, 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        6381       3307     603  Uninet S.A. de C.V., MX
 12479        5830       1603     132  UNI2-AS, ES
  7545        5388        681     629  TPG-INTERNET-AP TPG Telecom Limited, AU
 31334        4836        484      13  KABELDEUTSCHLAND-AS, DE
  4538        4335       4192      73  ERX-CERNET-BKB China Education and Rese
 11492        4095        273     633  CABLEONE, US
  7155        4034        280      28  VIASAT-SP-BACKBONE, US
 16509        3959       7856    1747  AMAZON-02, US
 39891        3651        203      20  ALJAWWALSTC-AS, SA
 22773        3532       2969     152  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        5830         5698  UNI2-AS, ES
 31334        4836         4823  KABELDEUTSCHLAND-AS, DE
  7545        5388         4759  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4335         4262  ERX-CERNET-BKB China Education and Research Net
  7155        4034         4006  VIASAT-SP-BACKBONE, US
 39891        3651         3631  ALJAWWALSTC-AS, SA
 11492        4095         3462  CABLEONE, US
 22773        3532         3380  ASN-CXA-ALL-CCI-22773-RDC, US
  7552        3390         3368  VIETEL-AS-AP Viettel Group, VN
  6327        3364         3272  SHAW, CA

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               174  COGENT-174, US
     62485  UNALLOCATED  8.23.229.0/24             3356  LEVEL3, US
     32985  UNALLOCATED  8.28.31.0/24              3356  LEVEL3, US
    394936  UNALLOCATED  8.33.224.0/24              174  COGENT-174, US
     14109  UNALLOCATED  8.38.252.0/24             3356  LEVEL3, US
     23061  UNALLOCATED  8.39.119.0/24             3356  LEVEL3, US
     26584  UNALLOCATED  8.42.62.0/23               209  CENTURYLINK-US-LEGACY-QWEST,
    395438  UNALLOCATED  8.42.206.0/24             3356  LEVEL3, US
     40544  UNALLOCATED  12.0.33.0/24              6461  ZAYO-6461, 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
23.137.192.0/24      Origin:     31798  CANAD-86-31798, CA
                    Transit:       174  COGENT-174, 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, MY
27.126.156.0/23      Origin:     55827  UNASSIGNED
                    Transit:      9930  TTNET-MY TIME dotCom Berhad, MY
27.126.158.0/23      Origin:     55827  UNASSIGNED
                    Transit:      9930  TTNET-MY TIME dotCom Berhad, MY

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        /8:10       /9:11      /10:38      /11:98      /12:285     
/13:579     /14:1165    /15:1912    /16:13358   /17:8163    /18:13874   
/19:25751   /20:40365   /21:47945   /22:99620   /23:82117   /24:468908  
/25:1285    /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        4827        5830  UNI2-AS, ES
 31334        4681        4836  KABELDEUTSCHLAND-AS, DE
 11492        3215        4095  CABLEONE, US
  6327        3152        3364  SHAW, CA
  7155        3125        4034  VIASAT-SP-BACKBONE, US
 39891        2801        3651  ALJAWWALSTC-AS, SA
 22773        2750        3532  ASN-CXA-ALL-CCI-22773-RDC, US
  8551        2638        3179  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  8151        2180        6381  Uninet S.A. de C.V., MX
 30036        2100        2353  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1584      2:1138      3:30        4:19        5:3320      6:51     
   8:1400      9:1        11:1        12:1797     13:499      14:2276   
  15:75       16:9        17:299      18:81       20:83       23:3484   
  24:2296     25:2        27:2554     31:3102     32:106      34:3      
  35:39       36:925      37:3298     38:1940     39:319      40:123    
  41:3570     42:687      43:2109     44:196      45:14023    46:3711   
  47:284      49:1426     50:1240     51:93       52:1121     54:270    
  55:673      56:6        57:52       58:1898     59:1175     60:718    
  61:2227     62:2267     63:1943     64:5078     65:2299     66:4892   
  67:2859     68:1228     69:3844     70:1431     71:678      72:2824   
  74:2610     75:1433     76:682      77:2794     78:1868     79:2350   
  80:1899     81:1576     82:1271     83:1175     84:1205     85:2482   
  86:547      87:1711     88:1108     89:2724     90:314      91:7918   
  92:1494     93:2453     94:2650     95:3974     96:1051     97:335    
  98:955      99:961     100:87      101:1117    102:881     103:23445  
 104:3415    105:377     106:828     107:1968    108:699     109:3735   
 110:1808    111:2041    112:1599    113:1406    114:1548    115:1870   
 116:1792    117:2089    118:2161    119:1738    120:844     121:1042   
 122:2428    123:1991    124:1552    125:2021    128:1349    129:934    
 130:629     131:1857    132:756     133:300     134:1269    135:278    
 136:609     137:852     138:2174    139:989     140:635     141:931    
 142:905     143:1220    144:978     145:328     146:1481    147:1031   
 148:2133    149:1175    150:815     151:1283    152:1489    153:378    
 154:4733    155:1036    156:3403    157:1102    158:824     159:1940   
 160:1916    161:1021    162:3043    163:846     164:1464    165:1271   
 166:537     167:1628    168:3697    169:519     170:4270    171:764    
 172:1920    173:2439    174:1014    175:1014    176:2631    177:4236   
 178:3054    179:1463    180:2176    181:2525    182:3082    183:1132   
 184:2403    185:16344   186:3766    187:2674    188:4066    189:2228   
 190:8630    191:1452    192:10326   193:7443    194:6100    195:4365   
 196:3534    197:1875    198:6092    199:5952    200:7198    201:5197   
 202:10530   203:10159   204:4514    205:3090    206:3255    207:3286   
 208:4044    209:4423    210:4004    211:1989    212:3309    213:3047   
 214:1164    215:60      216:5941    217:2389    218:877     219:606    
 220:2029    221:897     222:981     223:1493   

End of report


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