[cmNOG] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri Aug 26 18:02:56 UTC 2022


This is an automated weekly mailing describing the state of the Global
IPv4 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 https://thyme.apnic.net.

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

IPv4 Routing Table Report   04:00 +10GMT Sat 27 Aug, 2022

  BGP Table (Global) as seen in Japan.

Report Website:     https://thyme.apnic.net
Detailed Analysis:  https://thyme.apnic.net/current/

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

BGP routing table entries examined:                              907997
    Prefixes after maximum aggregation (per Origin AS):          342169
    Deaggregation factor:                                          2.65
    Unique aggregates announced (without unneeded subnets):      438559
Total ASes present in the Internet Routing Table:                 73597
    Prefixes per ASN:                                             12.34
Origin-only ASes present in the Internet Routing Table:           63163
Origin ASes announcing only one prefix:                           25995
Transit ASes present in the Internet Routing Table:               10434
Transit-only ASes present in the Internet Routing Table:            397
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      55
    Max AS path prepend of ASN (265020)                              50
Prefixes from unregistered ASNs in the Routing Table:               955
    Number of instances of unregistered ASNs:                       955
Number of 32-bit ASNs allocated by the RIRs:                      40061
Number of 32-bit ASNs visible in the Routing Table:               33252
Prefixes from 32-bit ASNs in the Routing Table:                  159101
Number of bogon 32-bit ASNs visible in the Routing Table:            12
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            507
Number of addresses announced to Internet:                   3068908416
    Equivalent to 182 /8s, 235 /16s and 211 /24s
    Percentage of available address space announced:               82.9
    Percentage of allocated address space announced:               82.9
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.6
Total number of prefixes smaller than registry allocations:      308313

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

Prefixes being announced by APNIC Region ASes:                   236904
    Total APNIC prefixes after maximum aggregation:               67404
    APNIC Deaggregation factor:                                    3.51
Prefixes being announced from the APNIC address blocks:          232031
    Unique aggregates announced from the APNIC address blocks:    96215
APNIC Region origin ASes present in the Internet Routing Table:   12900
    APNIC Prefixes per ASN:                                       17.99
APNIC Region origin ASes announcing only one prefix:               3733
APNIC Region transit ASes present in the Internet Routing Table:   1760
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         34
Number of APNIC region 32-bit ASNs visible in the Routing Table:   8141
Number of APNIC addresses announced to Internet:              773150720
    Equivalent to 46 /8s, 21 /16s and 88 /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, 131072-151865
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:                    264812
    Total ARIN prefixes after maximum aggregation:               120921
    ARIN Deaggregation factor:                                     2.19
Prefixes being announced from the ARIN address blocks:           265108
    Unique aggregates announced from the ARIN address blocks:    127764
ARIN Region origin ASes present in the Internet Routing Table:    19052
    ARIN Prefixes per ASN:                                        13.91
ARIN Region origin ASes announcing only one prefix:                6908
ARIN Region transit ASes present in the Internet Routing Table:    1924
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          35
Number of ARIN region 32-bit ASNs visible in the Routing Table:    4598
Number of ARIN addresses announced to Internet:              1293806848
    Equivalent to 77 /8s, 29 /16s and 237 /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:                    260499
    Total RIPE prefixes after maximum aggregation:               119614
    RIPE Deaggregation factor:                                     2.18
Prefixes being announced from the RIPE address blocks:           257730
    Unique aggregates announced from the RIPE address blocks:    153353
RIPE Region origin ASes present in the Internet Routing Table:    28197
    RIPE Prefixes per ASN:                                         9.14
RIPE Region origin ASes announcing only one prefix:               12080
RIPE Region transit ASes present in the Internet Routing Table:    4007
Average RIPE Region AS path length visible:                         4.3
    Max RIPE Region AS path length visible:                          35
Number of RIPE region 32-bit ASNs visible in the Routing Table:   10790
Number of RIPE addresses announced to Internet:               717358976
    Equivalent to 42 /8s, 194 /16s and 7 /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:                  116556
    Total LACNIC prefixes after maximum aggregation:              27906
    LACNIC Deaggregation factor:                                   4.18
Prefixes being announced from the LACNIC address blocks:         116195
    Unique aggregates announced from the LACNIC address blocks:   48932
LACNIC Region origin ASes present in the Internet Routing Table:  10981
    LACNIC Prefixes per ASN:                                      10.58
LACNIC Region origin ASes announcing only one prefix:              2682
LACNIC Region transit ASes present in the Internet Routing Table:  2228
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        55
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8712
Number of LACNIC addresses announced to Internet:             176412160
    Equivalent to 10 /8s, 131 /16s and 214 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-273820 + 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:                  28271
    Total AfriNIC prefixes after maximum aggregation:              5579
    AfriNIC Deaggregation factor:                                  5.07
Prefixes being announced from the AfriNIC address blocks:         36426
    Unique aggregates announced from the AfriNIC address blocks:  11861
AfriNIC Region origin ASes present in the Internet Routing Table:  1683
    AfriNIC Prefixes per ASN:                                     21.64
AfriNIC Region origin ASes announcing only one prefix:              592
AfriNIC Region transit ASes present in the Internet Routing Table:  326
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       32
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1011
Number of AfriNIC addresses announced to Internet:            107891712
    Equivalent to 6 /8s, 110 /16s and 76 /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        9115       8883      47  CHINAMOBILE-CN China Mobile Communicati
  7545        5924        789     698  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4713       4192      75  ERX-CERNET-BKB China Education and Rese
  7552        3583       1330      20  VIETEL-AS-AP Viettel Group, VN
  7713        3511       1042      61  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        3377       1877      67  VNPT-AS-VN VNPT Corp, VN
  4766        2502      11125     603  KIXS-AS-KR Korea Telecom, KR
  9498        2426        499     238  BBIL-AP BHARTI Airtel Ltd., IN
 24560        2191        851     407  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
 45090        2181       1438      79  TENCENT-NET-AP Shenzhen Tencent Compute

Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 16509        6891      10410    2720  AMAZON-02, US
 11492        4536        301     579  CABLEONE, US
  7155        3906        265      32  VIASAT-SP-BACKBONE, US
 22773        3818       3064     353  ASN-CXA-ALL-CCI-22773-RDC, US
 16625        3471       1790    2503  AKAMAI-AS, US
  6327        3451       1319      63  SHAW, CA
   749        3036      50728    2294  DNIC-AS-00749, US
 30036        2607        370     242  MEDIACOM-ENTERPRISE-BUSINESS, US
396982        2529       3387     364  GOOGLE-CLOUD-PLATFORM, US
   209        2366       4936     407  CENTURYLINK-US-LEGACY-QWEST, US

Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 12479        6874       1730     144  UNI2-AS, ES
  9121        6615       1692      17  TTNET, TR
 20940        4065       3348     219  AKAMAI-ASN1, NL
 39891        4006        234      46  ALJAWWALSTC-AS, SA
  8551        3999        374      39  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2940       2290     910  ROSTELECOM-AS, RU
  6849        2759        355      21  UKRTELNET, UA
  9009        2592        252    1331  M247, GB
 34984        2265        359     632  TELLCOM-AS, TR
 47331        2066        324    1565  TTNET, TR

Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151       10786       3393     557  Uninet S.A. de C.V., MX
 10620        3506        516     778  Telmex Colombia S.A., CO
 11830        2342        369      64  Instituto Costarricense de Electricidad
 13999        1975        321     505  Mega Cable, S.A. de C.V., MX
 28573        1359       2327     267  Claro NXT Telecomunicacoes Ltda, BR
  6503        1288        338     520  Axtel, S.A.B. de C.V., MX
  3816        1273        699     153  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1129        369      21  Telefonica del Peru S.A.A., PE
 11664        1054        180     468  Techtel LMDS Comunicaciones Interactiva
 26615         979       2466      43  TIM SA, BR

Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
 24863        1602        393      21  LINKdotNET-AS, EG
 24835        1546        521      31  RAYA-AS, EG
 36992        1324       1519     268  ETISALAT-MISR, EG
 36903        1268        550      99  MT-MPLS, MA
 29571         991         67      42  ORANGE-COTE-IVOIRE, CI
 36935         810        520      42  Vodafone-, EG
  6713         612       1863      34  IAM-AS, MA
 15399         520         52      39  WANANCHI-, KE
 37342         481         32       1  MOVITEL, MZ
 23889         401        232      16  MauritiusTelecom, MU

Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151       10786       3393     557  Uninet S.A. de C.V., MX
  9808        9115       8883      47  CHINAMOBILE-CN China Mobile Communicati
 16509        6891      10410    2720  AMAZON-02, US
 12479        6874       1730     144  UNI2-AS, ES
  9121        6615       1692      17  TTNET, TR
  7545        5924        789     698  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4713       4192      75  ERX-CERNET-BKB China Education and Rese
 11492        4536        301     579  CABLEONE, US
 20940        4065       3348     219  AKAMAI-ASN1, NL
 39891        4006        234      46  ALJAWWALSTC-AS, SA

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

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

   ASN  No of nets  Net Savings  Description
  9808        9115         9068  CHINAMOBILE-CN China Mobile Communications Grou
 12479        6874         6730  UNI2-AS, ES
  9121        6615         6598  TTNET, TR
  7545        5924         5226  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4713         4638  ERX-CERNET-BKB China Education and Research Net
 16509        6891         4171  AMAZON-02, US
 39891        4006         3960  ALJAWWALSTC-AS, SA
  8551        3999         3960  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11492        4536         3957  CABLEONE, US
  7155        3906         3874  VIASAT-SP-BACKBONE, US

Complete listing at https://thyme.apnic.net/current/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
    398083  UNALLOCATED  5.133.124.0/24          399587  UT, US
     33123  UNALLOCATED  8.10.69.0/24             11168  SCC, US
     53775  UNALLOCATED  8.20.88.0/24              7029  WINDSTREAM, US
     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            22442  HOU-PHONOSCOPE, US
     54338  UNALLOCATED  8.33.241.0/24             6461  ZAYO-6461, US
     18798  UNALLOCATED  8.40.106.0/24             6461  ZAYO-6461, US
    394856  UNALLOCATED  8.40.216.0/24             3356  LEVEL3, US

Complete listing at https://thyme.apnic.net/current/data-badAS

Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------

Prefix                Origin AS  Description
192.88.99.0/24             6939  HURRICANE, US

Complete listing at https://thyme.apnic.net/current/data-spar

Advertised Unallocated Addresses
--------------------------------

Unassigned Network     ASN Information  AS Name
23.128.80.0/24       Origin:    397372  UNASSIGNED
23.128.80.0/24      Transit:       577  BACOM, CA
23.141.0.0/24        Origin:    395350  UNASSIGNED
23.141.0.0/24       Transit:     11426  TWC-11426-CAROLINAS, US
27.100.7.0/24        Origin:     56096  UNASSIGNED
27.100.7.0/24       Transit:     45455  TH-2S1N-AP Two S One N Co Ltd, Internet 
41.57.124.0/22       Origin:     37442  UNASSIGNED
41.57.124.0/22      Transit:     37204  TELONE, ZW
41.57.124.0/23       Origin:     37442  UNASSIGNED
41.57.124.0/23      Transit:     37204  TELONE, ZW

Complete listing at https://thyme.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      /10:39      /11:101     /12:299     
/13:595     /14:1209    /15:2063    /16:13519   /17:8346    /18:13954   
/19:25154   /20:44494   /21:52330   /22:109246  /23:97257   /24:538558  
/25:804     /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        5862        6874  UNI2-AS, ES
  9121        5772        6615  TTNET, TR
  8151        4533       10786  Uninet S.A. de C.V., MX
  8551        3457        3999  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11492        3453        4536  CABLEONE, US
  6327        3261        3451  SHAW, CA
 39891        3189        4006  ALJAWWALSTC-AS, SA
  7155        2995        3906  VIASAT-SP-BACKBONE, US
 22773        2832        3818  ASN-CXA-ALL-CCI-22773-RDC, US
  6849        2616        2759  UKRTELNET, UA

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

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

   1:1969      2:1026      3:157       4:5         5:3860      6:115    
   7:6         8:1592      9:1        11:173      12:1647     13:334    
  14:2368     15:244      16:47       17:377      18:197      20:243    
  21:4        22:188      23:5896     24:2427     25:6        27:2631   
  29:19       31:2414     32:95       34:7        35:87       36:1847   
  37:4478     38:3448     39:723      40:148      41:3939     42:1144   
  43:2219     44:288      45:16137    46:4169     47:330      49:1711   
  50:1953     51:239      52:1469     54:384      55:843      56:8      
  57:60       58:1793     59:1164     60:975      61:2291     62:2547   
  63:1924     64:5576     65:2364     66:4873     67:2963     68:1207   
  69:4157     70:1315     71:681      72:3026     74:2643     75:1403   
  76:590      77:2262     78:3955     79:3125     80:2032     81:1777   
  82:1490     83:1211     84:1380     85:3725     86:738      87:1908   
  88:2802     89:3405     90:547      91:7646     92:2042     93:2546   
  94:3529     95:4801     96:1298     97:351      98:1025     99:721    
 100:77      101:1060    102:2254    103:29750   104:4562    105:469    
 106:888     107:2548    108:880     109:4328    110:2010    111:3339   
 112:2056    113:1540    114:1489    115:2013    116:1913    117:2481   
 118:2323    119:1819    120:1795    121:1078    122:2525    123:2081   
 124:1580    125:2144    128:1225    129:1043    130:1013    131:2051   
 132:813     133:378     134:1937    135:299     136:856     137:877    
 138:2504    139:1510    140:944     141:1454    142:1337    143:1410   
 144:1197    145:341     146:1857    147:1514    148:2242    149:1785   
 150:865     151:1079    152:1874    153:465     154:3702    155:1453   
 156:1739    157:1270    158:1042    159:2197    160:2513    161:1335   
 162:3505    163:1381    164:1636    165:1634    166:782     167:1763   
 168:3811    169:881     170:4516    171:844     172:3330    173:3143   
 174:1023    175:1145    176:3625    177:4753    178:3577    179:2219   
 180:2343    181:3244    182:3237    183:1936    184:2374    185:19638  
 186:4536    187:3886    188:3990    189:3434    190:9090    191:1447   
 192:10978   193:8686    194:7100    195:5065    196:2959    197:2428   
 198:6009    199:6025    200:7633    201:5748    202:10489   203:10024  
 204:4519    205:3436    206:3764    207:3441    208:4054    209:4710   
 210:4362    211:2404    212:4071    213:3477    214:1122    215:66     
 216:6385    217:2638    218:1290    219:573     220:2011    221:951    
 222:827     223:1987   

End of report


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