[menog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri Jul 29 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 30 Jul, 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:                              905247
    Prefixes after maximum aggregation (per Origin AS):          341068
    Deaggregation factor:                                          2.65
    Unique aggregates announced (without unneeded subnets):      437189
Total ASes present in the Internet Routing Table:                 73490
    Prefixes per ASN:                                             12.32
Origin-only ASes present in the Internet Routing Table:           63082
Origin ASes announcing only one prefix:                           25963
Transit ASes present in the Internet Routing Table:               10408
Transit-only ASes present in the Internet Routing Table:            397
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      55
    Max AS path prepend of ASN (265020)                              50
Prefixes from unregistered ASNs in the Routing Table:               977
    Number of instances of unregistered ASNs:                       979
Number of 32-bit ASNs allocated by the RIRs:                      39886
Number of 32-bit ASNs visible in the Routing Table:               33107
Prefixes from 32-bit ASNs in the Routing Table:                  157560
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:            501
Number of addresses announced to Internet:                   3071424384
    Equivalent to 183 /8s, 18 /16s and 55 /24s
    Percentage of available address space announced:               83.0
    Percentage of allocated address space announced:               83.0
    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:      307540

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

Prefixes being announced by APNIC Region ASes:                   236196
    Total APNIC prefixes after maximum aggregation:               67185
    APNIC Deaggregation factor:                                    3.52
Prefixes being announced from the APNIC address blocks:          231229
    Unique aggregates announced from the APNIC address blocks:    96140
APNIC Region origin ASes present in the Internet Routing Table:   12839
    APNIC Prefixes per ASN:                                       18.01
APNIC Region origin ASes announcing only one prefix:               3731
APNIC Region transit ASes present in the Internet Routing Table:   1749
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         25
Number of APNIC region 32-bit ASNs visible in the Routing Table:   8061
Number of APNIC addresses announced to Internet:              773167360
    Equivalent to 46 /8s, 21 /16s and 153 /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:                    264075
    Total ARIN prefixes after maximum aggregation:               120837
    ARIN Deaggregation factor:                                     2.19
Prefixes being announced from the ARIN address blocks:           264335
    Unique aggregates announced from the ARIN address blocks:    127278
ARIN Region origin ASes present in the Internet Routing Table:    19050
    ARIN Prefixes per ASN:                                        13.88
ARIN Region origin ASes announcing only one prefix:                6923
ARIN Region transit ASes present in the Internet Routing Table:    1920
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:    4575
Number of ARIN addresses announced to Internet:              1295815424
    Equivalent to 77 /8s, 60 /16s and 147 /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:                    259685
    Total RIPE prefixes after maximum aggregation:               119007
    RIPE Deaggregation factor:                                     2.18
Prefixes being announced from the RIPE address blocks:           257091
    Unique aggregates announced from the RIPE address blocks:    152718
RIPE Region origin ASes present in the Internet Routing Table:    28166
    RIPE Prefixes per ASN:                                         9.13
RIPE Region origin ASes announcing only one prefix:               12067
RIPE Region transit ASes present in the Internet Routing Table:    3992
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:   10768
Number of RIPE addresses announced to Internet:               717923968
    Equivalent to 42 /8s, 202 /16s and 166 /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:                  116194
    Total LACNIC prefixes after maximum aggregation:              27753
    LACNIC Deaggregation factor:                                   4.19
Prefixes being announced from the LACNIC address blocks:         115918
    Unique aggregates announced from the LACNIC address blocks:   48818
LACNIC Region origin ASes present in the Internet Routing Table:  10980
    LACNIC Prefixes per ASN:                                      10.56
LACNIC Region origin ASes announcing only one prefix:              2659
LACNIC Region transit ASes present in the Internet Routing Table:  2245
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:  8709
Number of LACNIC addresses announced to Internet:             176449792
    Equivalent to 10 /8s, 132 /16s and 105 /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:                  28120
    Total AfriNIC prefixes after maximum aggregation:              5541
    AfriNIC Deaggregation factor:                                  5.07
Prefixes being announced from the AfriNIC address blocks:         36173
    Unique aggregates announced from the AfriNIC address blocks:  11815
AfriNIC Region origin ASes present in the Internet Routing Table:  1664
    AfriNIC Prefixes per ASN:                                     21.74
AfriNIC Region origin ASes announcing only one prefix:              583
AfriNIC Region transit ASes present in the Internet Routing Table:  324
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       34
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  994
Number of AfriNIC addresses announced to Internet:            107783936
    Equivalent to 6 /8s, 108 /16s and 167 /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        9040       8883      49  CHINAMOBILE-CN China Mobile Communicati
  7545        5928        785     695  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4715       4192      75  ERX-CERNET-BKB China Education and Rese
  7552        3589       1330      19  VIETEL-AS-AP Viettel Group, VN
  7713        3510       1042      61  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        3385       1879      49  VNPT-AS-VN VNPT Corp, VN
  4766        2499      11125     602  KIXS-AS-KR Korea Telecom, KR
  9498        2428        499     238  BBIL-AP BHARTI Airtel Ltd., IN
 45090        2174       1438      79  TENCENT-NET-AP Shenzhen Tencent Compute
 24560        2149        850     404  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd

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        6750      10386    2687  AMAZON-02, US
 11492        4515        299     658  CABLEONE, US
  7155        3906        265      32  VIASAT-SP-BACKBONE, US
 22773        3825       3066     351  ASN-CXA-ALL-CCI-22773-RDC, US
 16625        3458       1780    2501  AKAMAI-AS, US
  6327        3448       1319      64  SHAW, CA
   749        3024      50732    2282  DNIC-AS-00749, US
 30036        2601        371     286  MEDIACOM-ENTERPRISE-BUSINESS, US
396982        2523       3384     362  GOOGLE-CLOUD-PLATFORM, US
   209        2374       4936     411  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        6880       1730     144  UNI2-AS, ES
  9121        6663       1692      17  TTNET, TR
 20940        4040       3348     218  AKAMAI-ASN1, NL
 39891        4006        234      46  ALJAWWALSTC-AS, SA
  8551        3994        374      39  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2942       2290     913  ROSTELECOM-AS, RU
  6849        2754        355      21  UKRTELNET, UA
  9009        2580        254    1333  M247, GB
 34984        2245        357     634  TELLCOM-AS, TR
 47331        2033        321    1555  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       10792       3397     559  Uninet S.A. de C.V., MX
 10620        3479        515     781  Telmex Colombia S.A., CO
 11830        2411        369      64  Instituto Costarricense de Electricidad
 13999        1920        314     511  Mega Cable, S.A. de C.V., MX
 28573        1369       2331     269  Claro NXT Telecomunicacoes Ltda, BR
  6503        1290        338     520  Axtel, S.A.B. de C.V., MX
  3816        1267        693     153  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1085        370      21  Telefonica del Peru S.A.A., PE
 11664        1013        179     460  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        1607        393      21  LINKdotNET-AS, EG
 24835        1546        521      31  RAYA-AS, EG
 36992        1326       1519     268  ETISALAT-MISR, EG
 36903        1199        545     114  MT-MPLS, MA
 29571         969         66      46  ORANGE-COTE-IVOIRE, CI
 36935         801        520      42  Vodafone-, EG
  6713         612       1863      34  IAM-AS, MA
 15399         518         52      38  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       10792       3397     559  Uninet S.A. de C.V., MX
  9808        9040       8883      49  CHINAMOBILE-CN China Mobile Communicati
 12479        6880       1730     144  UNI2-AS, ES
 16509        6750      10386    2687  AMAZON-02, US
  9121        6663       1692      17  TTNET, TR
  7545        5928        785     695  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4715       4192      75  ERX-CERNET-BKB China Education and Rese
 11492        4515        299     658  CABLEONE, US
 20940        4040       3348     218  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        9040         8991  CHINAMOBILE-CN China Mobile Communications Grou
 12479        6880         6736  UNI2-AS, ES
  9121        6663         6646  TTNET, TR
  7545        5928         5233  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4715         4640  ERX-CERNET-BKB China Education and Research Net
 16509        6750         4063  AMAZON-02, US
 39891        4006         3960  ALJAWWALSTC-AS, SA
  8551        3994         3955  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  7155        3906         3874  VIASAT-SP-BACKBONE, US
 11492        4515         3857  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
     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
23.139.104.0/24      Origin:    395494  HIGH-RAPID-NETWORKS, US
23.139.104.0/24     Transit:      6939  HURRICANE, US
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      /10:40      /11:100     /12:303     
/13:593     /14:1208    /15:2065    /16:13550   /17:8319    /18:13920   
/19:25093   /20:44400   /21:52299   /22:109046  /23:96801   /24:536672  
/25:809     /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        5866        6880  UNI2-AS, ES
  9121        5820        6663  TTNET, TR
  8151        4520       10792  Uninet S.A. de C.V., MX
  8551        3457        3994  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11492        3419        4515  CABLEONE, US
  6327        3258        3448  SHAW, CA
 39891        3189        4006  ALJAWWALSTC-AS, SA
  7155        2995        3906  VIASAT-SP-BACKBONE, US
 22773        2845        3825  ASN-CXA-ALL-CCI-22773-RDC, US
  6849        2612        2754  UKRTELNET, UA

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

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

   1:1955      2:1023      3:157       4:5         5:3824      6:111    
   7:6         8:1580      9:1        11:173      12:1643     13:340    
  14:2358     15:234      16:44       17:389      18:174      20:242    
  21:4        22:188      23:5832     24:2395     25:6        27:2620   
  29:19       31:2425     32:94       34:7        35:87       36:1816   
  37:4444     38:3345     39:718      40:152      41:3904     42:1131   
  43:2211     44:289      45:16074    46:4130     47:330      49:1716   
  50:1953     51:237      52:1454     54:384      55:846      56:8      
  57:58       58:1805     59:1162     60:964      61:2292     62:2538   
  63:1926     64:5600     65:2393     66:4872     67:2963     68:1194   
  69:4187     70:1317     71:681      72:3025     74:2640     75:1399   
  76:581      77:2249     78:3923     79:3128     80:2004     81:1784   
  82:1497     83:1207     84:1367     85:3707     86:735      87:1903   
  88:2797     89:3351     90:545      91:7625     92:2023     93:2562   
  94:3512     95:4761     96:1331     97:352      98:1027     99:752    
 100:77      101:1047    102:2185    103:29493   104:4530    105:468    
 106:879     107:2548    108:867     109:4328    110:1993    111:3326   
 112:2043    113:1539    114:1484    115:2002    116:1919    117:2421   
 118:2294    119:1827    120:1768    121:1068    122:2557    123:2093   
 124:1597    125:2116    128:1221    129:1061    130:980     131:2058   
 132:778     133:378     134:1937    135:298     136:892     137:863    
 138:2513    139:1490    140:935     141:1438    142:1330    143:1393   
 144:1209    145:347     146:1834    147:1519    148:2204    149:1757   
 150:866     151:1072    152:1869    153:462     154:3724    155:1451   
 156:1695    157:1271    158:1039    159:2220    160:2494    161:1309   
 162:3486    163:1322    164:1652    165:1631    166:765     167:1752   
 168:3840    169:880     170:4542    171:839     172:3290    173:3123   
 174:1027    175:1144    176:3618    177:4756    178:3544    179:2205   
 180:2334    181:3241    182:3240    183:1942    184:2344    185:19603  
 186:4410    187:3850    188:3987    189:3426    190:9019    191:1469   
 192:10995   193:8668    194:7077    195:5027    196:2949    197:2439   
 198:6007    199:6036    200:7574    201:5850    202:10504   203:10042  
 204:4520    205:3456    206:3758    207:3378    208:4028    209:4691   
 210:4374    211:2410    212:4058    213:3481    214:1139    215:65     
 216:6374    217:2638    218:1285    219:574     220:2008    221:963    
 222:829     223:2001   

End of report


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