[SANOG] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri Jun 24 18:02:46 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 25 Jun, 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:                              901886
    Prefixes after maximum aggregation (per Origin AS):          339734
    Deaggregation factor:                                          2.65
    Unique aggregates announced (without unneeded subnets):      434702
Total ASes present in the Internet Routing Table:                 73325
    Prefixes per ASN:                                             12.30
Origin-only ASes present in the Internet Routing Table:           62911
Origin ASes announcing only one prefix:                           25897
Transit ASes present in the Internet Routing Table:               10414
Transit-only ASes present in the Internet Routing Table:            382
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      68
    Max AS path prepend of ASN ( 37447)                              64
Prefixes from unregistered ASNs in the Routing Table:               915
    Number of instances of unregistered ASNs:                       920
Number of 32-bit ASNs allocated by the RIRs:                      39659
Number of 32-bit ASNs visible in the Routing Table:               32893
Prefixes from 32-bit ASNs in the Routing Table:                  156005
Number of bogon 32-bit ASNs visible in the Routing Table:            27
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            486
Number of addresses announced to Internet:                   3068808320
    Equivalent to 182 /8s, 234 /16s and 76 /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:      306109

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

Prefixes being announced by APNIC Region ASes:                   235788
    Total APNIC prefixes after maximum aggregation:               67048
    APNIC Deaggregation factor:                                    3.52
Prefixes being announced from the APNIC address blocks:          230940
    Unique aggregates announced from the APNIC address blocks:    95601
APNIC Region origin ASes present in the Internet Routing Table:   12745
    APNIC Prefixes per ASN:                                       18.12
APNIC Region origin ASes announcing only one prefix:               3670
APNIC Region transit ASes present in the Internet Routing Table:   1751
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         32
Number of APNIC region 32-bit ASNs visible in the Routing Table:   7955
Number of APNIC addresses announced to Internet:              773659904
    Equivalent to 46 /8s, 29 /16s and 29 /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:                    263451
    Total ARIN prefixes after maximum aggregation:               120545
    ARIN Deaggregation factor:                                     2.19
Prefixes being announced from the ARIN address blocks:           263700
    Unique aggregates announced from the ARIN address blocks:    126879
ARIN Region origin ASes present in the Internet Routing Table:    19034
    ARIN Prefixes per ASN:                                        13.85
ARIN Region origin ASes announcing only one prefix:                6909
ARIN Region transit ASes present in the Internet Routing Table:    1943
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          34
Number of ARIN region 32-bit ASNs visible in the Routing Table:    4537
Number of ARIN addresses announced to Internet:              1297183744
    Equivalent to 77 /8s, 81 /16s and 116 /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:                    258616
    Total RIPE prefixes after maximum aggregation:               118339
    RIPE Deaggregation factor:                                     2.19
Prefixes being announced from the RIPE address blocks:           255962
    Unique aggregates announced from the RIPE address blocks:    151545
RIPE Region origin ASes present in the Internet Routing Table:    28155
    RIPE Prefixes per ASN:                                         9.09
RIPE Region origin ASes announcing only one prefix:               12049
RIPE Region transit ASes present in the Internet Routing Table:    3991
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:   10725
Number of RIPE addresses announced to Internet:               713826944
    Equivalent to 42 /8s, 140 /16s and 34 /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:                  115227
    Total LACNIC prefixes after maximum aggregation:              27600
    LACNIC Deaggregation factor:                                   4.17
Prefixes being announced from the LACNIC address blocks:         115021
    Unique aggregates announced from the LACNIC address blocks:   48752
LACNIC Region origin ASes present in the Internet Routing Table:  10977
    LACNIC Prefixes per ASN:                                      10.48
LACNIC Region origin ASes announcing only one prefix:              2693
LACNIC Region transit ASes present in the Internet Routing Table:  2233
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        55
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  8695
Number of LACNIC addresses announced to Internet:             176436736
    Equivalent to 10 /8s, 132 /16s and 54 /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:                  27889
    Total AfriNIC prefixes after maximum aggregation:              5505
    AfriNIC Deaggregation factor:                                  5.07
Prefixes being announced from the AfriNIC address blocks:         35777
    Unique aggregates announced from the AfriNIC address blocks:  11513
AfriNIC Region origin ASes present in the Internet Routing Table:  1654
    AfriNIC Prefixes per ASN:                                     21.63
AfriNIC Region origin ASes announcing only one prefix:              576
AfriNIC Region transit ASes present in the Internet Routing Table:  326
Average AfriNIC Region AS path length visible:                      5.1
    Max AfriNIC Region AS path length visible:                       68
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  981
Number of AfriNIC addresses announced to Internet:            107421696
    Equivalent to 6 /8s, 103 /16s and 32 /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        9267       8882      50  CHINAMOBILE-CN China Mobile Communicati
  7545        5922        789     695  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4715       4192      75  ERX-CERNET-BKB China Education and Rese
  7552        3581       1330      19  VIETEL-AS-AP Viettel Group, VN
  7713        3485       1039      53  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        3425       1880      56  VNPT-AS-VN VNPT Corp, VN
  4766        2495      11121     601  KIXS-AS-KR Korea Telecom, KR
  9498        2422        499     236  BBIL-AP BHARTI Airtel Ltd., IN
 45090        2172       1438      79  TENCENT-NET-AP Shenzhen Tencent Compute
  4755        2125        425     216  TATACOMM-AS TATA Communications formerl

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        6664      10376    2664  AMAZON-02, US
 11492        4507        299     675  CABLEONE, US
  7155        3901        264      31  VIASAT-SP-BACKBONE, US
 22773        3887       3067     354  ASN-CXA-ALL-CCI-22773-RDC, US
 16625        3473       1785    2504  AKAMAI-AS, US
  6327        3437       1319      63  SHAW, CA
   749        2993      50740    2251  DNIC-AS-00749, US
 30036        2624        374     172  MEDIACOM-ENTERPRISE-BUSINESS, US
396982        2498       3342     355  GOOGLE-CLOUD-PLATFORM, US
   209        2435       4961     416  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        6868       1730     145  UNI2-AS, ES
  9121        6741       1692      17  TTNET, TR
  8551        4009        374      39  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 39891        4005        234      45  ALJAWWALSTC-AS, SA
 20940        3973       3361     205  AKAMAI-ASN1, NL
 12389        2942       2289     909  ROSTELECOM-AS, RU
  6849        2718        355      21  UKRTELNET, UA
  9009        2520        249    1306  M247, GB
 34984        2243        357     632  TELLCOM-AS, TR
 47331        2080        326    1596  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       10761       3404     554  Uninet S.A. de C.V., MX
 10620        3488        517     744  Telmex Colombia S.A., CO
 11830        2436        369      64  Instituto Costarricense de Electricidad
 13999        1884        307     491  Mega Cable, S.A. de C.V., MX
 28573        1374       2330     274  Claro NXT Telecomunicacoes Ltda, BR
  6503        1328        347     528  Axtel, S.A.B. de C.V., MX
  3816        1260        675     151  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1076        369      21  Telefonica del Peru S.A.A., PE
 11664        1031        192     438  Techtel LMDS Comunicaciones Interactiva
 26615         967       2454      47  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        1577        393      19  LINKdotNET-AS, EG
 24835        1540        521      31  RAYA-AS, EG
 36992        1316       1519     264  ETISALAT-MISR, EG
 36903        1199        545     114  MT-MPLS, MA
 29571         959         65      57  ORANGE-COTE-IVOIRE, CI
 36935         777        520      42  Vodafone-, EG
  6713         611       1863      34  IAM-AS, MA
 15399         519         52      37  WANANCHI-, KE
 37342         464         32       1  MOVITEL, MZ
 23889         423        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       10761       3404     554  Uninet S.A. de C.V., MX
  9808        9267       8882      50  CHINAMOBILE-CN China Mobile Communicati
 12479        6868       1730     145  UNI2-AS, ES
  9121        6741       1692      17  TTNET, TR
 16509        6664      10376    2664  AMAZON-02, US
  7545        5922        789     695  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4715       4192      75  ERX-CERNET-BKB China Education and Rese
 11492        4507        299     675  CABLEONE, US
  8551        4009        374      39  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 39891        4005        234      45  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        9267         9217  CHINAMOBILE-CN China Mobile Communications Grou
  9121        6741         6724  TTNET, TR
 12479        6868         6723  UNI2-AS, ES
  7545        5922         5227  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4715         4640  ERX-CERNET-BKB China Education and Research Net
 16509        6664         4000  AMAZON-02, US
  8551        4009         3970  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 39891        4005         3960  ALJAWWALSTC-AS, SA
  7155        3901         3870  VIASAT-SP-BACKBONE, US
 11492        4507         3832  CABLEONE, 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
     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
    395438  UNALLOCATED  8.42.206.0/24             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
23.141.0.0/24        Origin:    395350  UNASSIGNED
23.141.0.0/24       Transit:     11426  TWC-11426-CAROLINAS, US
23.166.208.0/24      Origin:    398906  LUFTCLOUD-ASN-01, US
23.166.208.0/24     Transit:    132132  REPUBLICTELECOM-SG MyRepublic Ltd., SG
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      /10:41      /11:100     /12:301     
/13:592     /14:1207    /15:2057    /16:13518   /17:8318    /18:13877   
/19:25100   /20:44415   /21:52286   /22:108708  /23:96569   /24:533967  
/25:801     /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
  9121        5895        6741  TTNET, TR
 12479        5847        6868  UNI2-AS, ES
  8151        4479       10761  Uninet S.A. de C.V., MX
  8551        3473        4009  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11492        3414        4507  CABLEONE, US
  6327        3247        3437  SHAW, CA
 39891        3189        4005  ALJAWWALSTC-AS, SA
  7155        2991        3901  VIASAT-SP-BACKBONE, US
 22773        2905        3887  ASN-CXA-ALL-CCI-22773-RDC, US
  6849        2576        2718  UKRTELNET, UA

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

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

   1:1930      2:1044      3:157       4:5         5:3790      6:109    
   7:6         8:1564      9:1        11:173      12:1647     13:335    
  14:2341     15:218      16:44       17:385      18:175      20:213    
  21:4        22:188      23:5717     24:2380     25:6        27:2612   
  29:19       31:2452     32:95       34:7        35:87       36:1808   
  37:4423     38:3145     39:713      40:153      41:3906     42:1125   
  43:2213     44:289      45:15882    46:4134     47:322      49:1695   
  50:2177     51:237      52:1453     54:382      55:845      56:8      
  57:58       58:1773     59:1164     60:963      61:2266     62:2500   
  63:1937     64:5548     65:2337     66:4864     67:2972     68:1188   
  69:4182     70:1327     71:681      72:3048     74:2652     75:1393   
  76:579      77:2205     78:3907     79:3126     80:1985     81:1750   
  82:1497     83:1211     84:1328     85:3682     86:714      87:1919   
  88:2783     89:3313     90:541      91:7614     92:2010     93:2541   
  94:3440     95:4766     96:1310     97:350      98:1004     99:752    
 100:76      101:1278    102:2100    103:29311   104:4470    105:465    
 106:877     107:2540    108:842     109:4269    110:1989    111:3318   
 112:2041    113:1531    114:1481    115:1996    116:1916    117:2548   
 118:2295    119:1837    120:1699    121:1074    122:2544    123:2101   
 124:1599    125:2113    128:1235    129:1071    130:984     131:2032   
 132:787     133:377     134:1932    135:278     136:884     137:865    
 138:2439    139:1524    140:900     141:1442    142:1305    143:1423   
 144:1207    145:348     146:1817    147:1514    148:2213    149:1753   
 150:860     151:1074    152:1849    153:461     154:3575    155:1444   
 156:1691    157:1247    158:1043    159:2214    160:2542    161:1275   
 162:3460    163:1281    164:1634    165:1616    166:726     167:1723   
 168:3815    169:871     170:4466    171:837     172:3219    173:3135   
 174:1021    175:1144    176:3574    177:4663    178:3535    179:2106   
 180:2294    181:3019    182:3253    183:1958    184:2346    185:19563  
 186:4305    187:3802    188:3941    189:3392    190:8944    191:1383   
 192:11023   193:8642    194:7055    195:4963    196:2959    197:2402   
 198:5994    199:6039    200:7557    201:5870    202:10481   203:10026  
 204:4537    205:3489    206:3752    207:3397    208:4018    209:4675   
 210:4358    211:2432    212:4041    213:3404    214:1139    215:65     
 216:6478    217:2642    218:1291    219:574     220:1946    221:975    
 222:826     223:2182   

End of report


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