[menog] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri Dec 9 18:03:11 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 10 Dec, 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:                              916614
    Prefixes after maximum aggregation (per Origin AS):          346701
    Deaggregation factor:                                          2.64
    Unique aggregates announced (without unneeded subnets):      443400
Total ASes present in the Internet Routing Table:                 73926
    Prefixes per ASN:                                             12.40
Origin-only ASes present in the Internet Routing Table:           63481
Origin ASes announcing only one prefix:                           26081
Transit ASes present in the Internet Routing Table:               10445
Transit-only ASes present in the Internet Routing Table:            422
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:              1039
    Number of instances of unregistered ASNs:                      1044
Number of 32-bit ASNs allocated by the RIRs:                      40848
Number of 32-bit ASNs visible in the Routing Table:               33831
Prefixes from 32-bit ASNs in the Routing Table:                  164978
Number of bogon 32-bit ASNs visible in the Routing Table:            16
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            516
Number of addresses announced to Internet:                   3061103104
    Equivalent to 182 /8s, 116 /16s and 186 /24s
    Percentage of available address space announced:               82.7
    Percentage of allocated address space announced:               82.7
    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:      311058

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

Prefixes being announced by APNIC Region ASes:                   239692
    Total APNIC prefixes after maximum aggregation:               68356
    APNIC Deaggregation factor:                                    3.51
Prefixes being announced from the APNIC address blocks:          234528
    Unique aggregates announced from the APNIC address blocks:    97353
APNIC Region origin ASes present in the Internet Routing Table:   13152
    APNIC Prefixes per ASN:                                       17.83
APNIC Region origin ASes announcing only one prefix:               3835
APNIC Region transit ASes present in the Internet Routing Table:   1756
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         31
Number of APNIC region 32-bit ASNs visible in the Routing Table:   8409
Number of APNIC addresses announced to Internet:              773713792
    Equivalent to 46 /8s, 29 /16s and 239 /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:                    267472
    Total ARIN prefixes after maximum aggregation:               121859
    ARIN Deaggregation factor:                                     2.19
Prefixes being announced from the ARIN address blocks:           269090
    Unique aggregates announced from the ARIN address blocks:    129548
ARIN Region origin ASes present in the Internet Routing Table:    19058
    ARIN Prefixes per ASN:                                        14.12
ARIN Region origin ASes announcing only one prefix:                6967
ARIN Region transit ASes present in the Internet Routing Table:    1939
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:    4697
Number of ARIN addresses announced to Internet:              1286705664
    Equivalent to 76 /8s, 177 /16s and 146 /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:                    262550
    Total RIPE prefixes after maximum aggregation:               121662
    RIPE Deaggregation factor:                                     2.16
Prefixes being announced from the RIPE address blocks:           259368
    Unique aggregates announced from the RIPE address blocks:    155340
RIPE Region origin ASes present in the Internet Routing Table:    28184
    RIPE Prefixes per ASN:                                         9.20
RIPE Region origin ASes announcing only one prefix:               12019
RIPE Region transit ASes present in the Internet Routing Table:    3963
Average RIPE Region AS path length visible:                         4.2
    Max RIPE Region AS path length visible:                          34
Number of RIPE region 32-bit ASNs visible in the Routing Table:   10917
Number of RIPE addresses announced to Internet:               716202624
    Equivalent to 42 /8s, 176 /16s and 98 /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:                  117310
    Total LACNIC prefixes after maximum aggregation:              28390
    LACNIC Deaggregation factor:                                   4.13
Prefixes being announced from the LACNIC address blocks:         116624
    Unique aggregates announced from the LACNIC address blocks:   48738
LACNIC Region origin ASes present in the Internet Routing Table:  11008
    LACNIC Prefixes per ASN:                                      10.59
LACNIC Region origin ASes announcing only one prefix:              2669
LACNIC Region transit ASes present in the Internet Routing Table:  2267
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:  8766
Number of LACNIC addresses announced to Internet:             176063744
    Equivalent to 10 /8s, 126 /16s and 133 /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:                  28551
    Total AfriNIC prefixes after maximum aggregation:              5649
    AfriNIC Deaggregation factor:                                  5.05
Prefixes being announced from the AfriNIC address blocks:         36488
    Unique aggregates announced from the AfriNIC address blocks:  11996
AfriNIC Region origin ASes present in the Internet Routing Table:  1705
    AfriNIC Prefixes per ASN:                                     21.40
AfriNIC Region origin ASes announcing only one prefix:              591
AfriNIC Region transit ASes present in the Internet Routing Table:  329
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       37
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1042
Number of AfriNIC addresses announced to Internet:            108125184
    Equivalent to 6 /8s, 113 /16s and 220 /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        9144       8884      50  CHINAMOBILE-CN China Mobile Communicati
  7545        5945        786     694  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4883       4192      75  ERX-CERNET-BKB China Education and Rese
  7552        3625       1331      21  VIETEL-AS-AP Viettel Group, VN
  7713        3504       1043      63  TELKOMNET-AS-AP PT Telekomunikasi Indon
 45899        3365       1867      87  VNPT-AS-VN VNPT Corp, VN
  9498        2574        499     237  BBIL-AP BHARTI Airtel Ltd., IN
  4766        2534      11252     598  KIXS-AS-KR Korea Telecom, KR
 24560        2313        849     417  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
 45090        2180       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        7714      10631    2892  AMAZON-02, US
 11492        4548        301     567  CABLEONE, US
  7155        3893        265      32  VIASAT-SP-BACKBONE, US
 22773        3690       3059     312  ASN-CXA-ALL-CCI-22773-RDC, US
  6327        3528       1320      63  SHAW, CA
 16625        3474       1817    2515  AKAMAI-AS, US
   749        3030      50577    2297  DNIC-AS-00749, US
  7018        2586      24125    1556  ATT-INTERNET4, US
 30036        2579        369     336  MEDIACOM-ENTERPRISE-BUSINESS, US
396982        2567       3482     362  GOOGLE-CLOUD-PLATFORM, 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        6964       1730     151  UNI2-AS, ES
  9121        6366       1692      17  TTNET, TR
 20940        4063       3400     183  AKAMAI-ASN1, NL
 39891        4010        234      47  ALJAWWALSTC-AS, SA
  8551        3700        374      38  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389        2941       2290     907  ROSTELECOM-AS, RU
  9009        2644        252    1362  M247, RO
 47331        2591        387    1954  TTNET, TR
 34984        2250        357     609  TELLCOM-AS, TR
  6849        2194        339      20  UKRTELNET, UA

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       10854       3338     596  Uninet S.A. de C.V., MX
 10620        3463        507     853  Telmex Colombia S.A., CO
 11830        2255        369      64  Instituto Costarricense de Electricidad
 13999        2160        353     569  Mega Cable, S.A. de C.V., MX
 28573        1337       2327     257  Claro NXT Telecomunicacoes Ltda, BR
  6503        1293        338     521  Axtel, S.A.B. de C.V., MX
  3816        1291        740     156  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147        1154        370      22  Telefonica del Peru S.A.A., PE
 11664        1136        184     473  Techtel LMDS Comunicaciones Interactiva
 26615         987       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
 24835        1548        537      31  RAYA-AS, EG
 24863        1537        393      21  LINKdotNET-AS, EG
 36992        1356       1520     269  ETISALAT-MISR, EG
 36903        1242        550      99  MT-MPLS, MA
 29571        1014         67      40  ORANGE-COTE-IVOIRE, CI
 36935         880        520      42  Vodafone-, EG
  6713         613       1863      34  IAM-AS, MA
 15399         519         53      42  WANANCHI-, KE
 37342         442         32       1  MOVITEL, MZ
  2018         375        319      72  TENET-1, ZA

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       10854       3338     596  Uninet S.A. de C.V., MX
  9808        9144       8884      50  CHINAMOBILE-CN China Mobile Communicati
 16509        7714      10631    2892  AMAZON-02, US
 12479        6964       1730     151  UNI2-AS, ES
  9121        6366       1692      17  TTNET, TR
  7545        5945        786     694  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4883       4192      75  ERX-CERNET-BKB China Education and Rese
 11492        4548        301     567  CABLEONE, US
 20940        4063       3400     183  AKAMAI-ASN1, NL
 39891        4010        234      47  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        9144         9094  CHINAMOBILE-CN China Mobile Communications Grou
 12479        6964         6813  UNI2-AS, ES
  9121        6366         6349  TTNET, TR
  7545        5945         5251  TPG-INTERNET-AP TPG Telecom Limited, AU
 16509        7714         4822  AMAZON-02, US
  4538        4883         4808  ERX-CERNET-BKB China Education and Research Net
 11492        4548         3981  CABLEONE, US
 39891        4010         3963  ALJAWWALSTC-AS, SA
 20940        4063         3880  AKAMAI-ASN1, NL
  7155        3893         3861  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
     65000  PRIVATE      2.92.64.0/20              8371  VIMPELCOM-NN Vimpelcom, Nizh
     65000  PRIVATE      2.92.80.0/20              8371  VIMPELCOM-NN Vimpelcom, Nizh
    398083  UNALLOCATED  5.133.124.0/24          399587  UT, US
     33123  UNALLOCATED  8.10.69.0/24             11168  SCC, US
     16641  UNALLOCATED  8.10.194.0/24             3356  LEVEL3, US
     16641  UNALLOCATED  8.10.210.0/24             3356  LEVEL3, US
     25674  UNALLOCATED  8.12.76.0/24              3356  LEVEL3, US
     16641  UNALLOCATED  8.12.250.0/24             3356  LEVEL3, US
     25674  UNALLOCATED  8.14.115.0/24             3356  LEVEL3, US
     12169  UNALLOCATED  8.15.207.0/24            32787  PROLEXIC-TECHNOLOGIES-DDOS-M

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
23.131.185.0/24      Origin:       174  COGENT-174, US
23.131.185.0/24     Transit:      2516  KDDI KDDI CORPORATION, JP
23.131.186.0/24      Origin:       174  COGENT-174, US
23.131.186.0/24     Transit:      2516  KDDI KDDI CORPORATION, JP
23.131.187.0/24      Origin:       174  COGENT-174, US
23.131.187.0/24     Transit:      2516  KDDI KDDI CORPORATION, JP
23.131.188.0/24      Origin:     46450  PILOT, US
23.131.188.0/24     Transit:      1299  TWELVE99 Arelion, fka Telia Carrier, SE
23.131.189.0/24      Origin:    150303  SOLORDP-AS-AP SoloRDP, IN
23.131.189.0/24     Transit:    140947  SNTHOSTINGS-AS-AP SnTHostings, IN

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      /11:100     /12:294     
/13:584     /14:1202    /15:2050    /16:13516   /17:8320    /18:13915   
/19:25212   /20:44298   /21:52360   /22:110154  /23:97972   /24:545764  
/25:805     /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        5999        6964  UNI2-AS, ES
  9121        5528        6366  TTNET, TR
  8151        4844       10854  Uninet S.A. de C.V., MX
 11492        3455        4548  CABLEONE, US
  6327        3336        3528  SHAW, CA
 39891        3193        4010  ALJAWWALSTC-AS, SA
  8551        3166        3700  BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
  7155        2982        3893  VIASAT-SP-BACKBONE, US
 22773        2724        3690  ASN-CXA-ALL-CCI-22773-RDC, US
 30036        2237        2579  MEDIACOM-ENTERPRISE-BUSINESS, US

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

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

   1:1732      2:1024      3:168       4:5         5:4067      6:109    
   7:5         8:1580      9:1        11:173      12:1613     13:370    
  14:2374     15:287      16:75       17:371      18:395      20:242    
  21:4        22:188      23:6001     24:2451     25:4        27:2703   
  29:19       31:2486     32:103      34:8        35:95       36:1811   
  37:4573     38:3919     39:816      40:144      41:3935     42:1134   
  43:2313     44:305      45:16389    46:4173     47:378      49:1722   
  50:1939     51:246      52:1522     54:394      55:839      56:8      
  57:78       58:1789     59:1158     60:1006     61:2428     62:2599   
  63:1956     64:5628     65:2327     66:4841     67:3032     68:1372   
  69:4155     70:1281     71:665      72:2990     74:2614     75:1466   
  76:599      77:2257     78:3969     79:2940     80:2045     81:1822   
  82:1488     83:1228     84:1498     85:3747     86:749      87:1927   
  88:2841     89:3501     90:581      91:7624     92:1983     93:2569   
  94:3530     95:4821     96:1317     97:344      98:1173     99:740    
 100:69      101:1059    102:2476    103:30573   104:4573    105:483    
 106:825     107:2551    108:918     109:4330    110:2044    111:3305   
 112:2032    113:1571    114:1604    115:2038    116:1901    117:2466   
 118:2320    119:1920    120:1726    121:1108    122:2590    123:2139   
 124:1576    125:2222    128:1266    129:979     130:978     131:2006   
 132:803     133:400     134:1903    135:294     136:880     137:921    
 138:2578    139:1500    140:1033    141:1476    142:1413    143:1463   
 144:1200    145:351     146:1893    147:1512    148:2280    149:1883   
 150:865     151:1148    152:1846    153:458     154:3845    155:1411   
 156:1634    157:1284    158:1041    159:2244    160:2576    161:1429   
 162:3534    163:1473    164:1678    165:1625    166:847     167:1732   
 168:3854    169:920     170:4570    171:872     172:3523    173:3090   
 174:1037    175:1144    176:3631    177:4788    178:3548    179:2137   
 180:2367    181:3374    182:3264    183:1935    184:2364    185:19983  
 186:4619    187:3944    188:4075    189:3450    190:9032    191:1478   
 192:11005   193:8807    194:7224    195:5094    196:2983    197:2363   
 198:6013    199:6108    200:7726    201:5847    202:10640   203:10056  
 204:4608    205:3518    206:3813    207:3407    208:4125    209:4828   
 210:4429    211:2494    212:4060    213:3539    214:1111    215:55     
 216:6597    217:2637    218:1273    219:575     220:2032    221:954    
 222:839     223:2013   

End of report


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