[menog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Apr 14 18:03:16 UTC 2023
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 15 Apr, 2023
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: 918516
Prefixes after maximum aggregation (per Origin AS): 348679
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 448419
Total ASes present in the Internet Routing Table: 74329
Prefixes per ASN: 12.36
Origin-only ASes present in the Internet Routing Table: 63774
Origin ASes announcing only one prefix: 26207
Transit ASes present in the Internet Routing Table: 10555
Transit-only ASes present in the Internet Routing Table: 432
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: 1397
Number of instances of unregistered ASNs: 1397
Number of 32-bit ASNs allocated by the RIRs: 41657
Number of 32-bit ASNs visible in the Routing Table: 34469
Prefixes from 32-bit ASNs in the Routing Table: 170077
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: 934
Number of addresses announced to Internet: 3061998848
Equivalent to 182 /8s, 130 /16s and 101 /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: 307006
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 242257
Total APNIC prefixes after maximum aggregation: 69283
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 236590
Unique aggregates announced from the APNIC address blocks: 97749
APNIC Region origin ASes present in the Internet Routing Table: 13397
APNIC Prefixes per ASN: 17.66
APNIC Region origin ASes announcing only one prefix: 3932
APNIC Region transit ASes present in the Internet Routing Table: 1805
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8686
Number of APNIC addresses announced to Internet: 773666688
Equivalent to 46 /8s, 29 /16s and 55 /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: 268730
Total ARIN prefixes after maximum aggregation: 122356
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 271182
Unique aggregates announced from the ARIN address blocks: 130874
ARIN Region origin ASes present in the Internet Routing Table: 19082
ARIN Prefixes per ASN: 14.21
ARIN Region origin ASes announcing only one prefix: 6964
ARIN Region transit ASes present in the Internet Routing Table: 1963
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4788
Number of ARIN addresses announced to Internet: 1285271808
Equivalent to 76 /8s, 155 /16s and 177 /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: 259027
Total RIPE prefixes after maximum aggregation: 121950
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 255085
Unique aggregates announced from the RIPE address blocks: 157646
RIPE Region origin ASes present in the Internet Routing Table: 28296
RIPE Prefixes per ASN: 9.01
RIPE Region origin ASes announcing only one prefix: 12040
RIPE Region transit ASes present in the Internet Routing Table: 3962
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11132
Number of RIPE addresses announced to Internet: 717840512
Equivalent to 42 /8s, 201 /16s and 96 /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: 117757
Total LACNIC prefixes after maximum aggregation: 28461
LACNIC Deaggregation factor: 4.14
Prefixes being announced from the LACNIC address blocks: 117044
Unique aggregates announced from the LACNIC address blocks: 49186
LACNIC Region origin ASes present in the Internet Routing Table: 10985
LACNIC Prefixes per ASN: 10.65
LACNIC Region origin ASes announcing only one prefix: 2661
LACNIC Region transit ASes present in the Internet Routing Table: 2286
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: 8780
Number of LACNIC addresses announced to Internet: 176708352
Equivalent to 10 /8s, 136 /16s and 91 /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: 29348
Total AfriNIC prefixes after maximum aggregation: 5795
AfriNIC Deaggregation factor: 5.06
Prefixes being announced from the AfriNIC address blocks: 37681
Unique aggregates announced from the AfriNIC address blocks: 12293
AfriNIC Region origin ASes present in the Internet Routing Table: 1738
AfriNIC Prefixes per ASN: 21.68
AfriNIC Region origin ASes announcing only one prefix: 610
AfriNIC Region transit ASes present in the Internet Routing Table: 335
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 30
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1083
Number of AfriNIC addresses announced to Internet: 107792384
Equivalent to 6 /8s, 108 /16s and 200 /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 9480 8705 39 CHINAMOBILE-CN China Mobile Communicati
7545 5728 786 689 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4865 4192 75 ERX-CERNET-BKB China Education and Rese
7552 3552 1331 21 VIETEL-AS-AP Viettel Group, VN
7713 3545 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3388 1872 93 VNPT-AS-VN VNPT Corp, VN
9498 2932 491 237 BBIL-AP BHARTI Airtel Ltd., IN
4766 2551 11252 591 KIXS-AS-KR Korea Telecom, KR
24560 2375 836 442 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
45090 2184 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 8240 10779 2906 AMAZON-02, US
11492 4541 301 607 CABLEONE, US
7155 3967 279 48 VIASAT-SP-BACKBONE, US
22773 3600 3056 280 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3514 1320 64 SHAW, CA
16625 3165 1590 2343 AKAMAI-AS, US
749 3055 50540 2322 DNIC-AS-00749, US
396982 2630 3590 362 GOOGLE-CLOUD-PLATFORM, US
7018 2566 24116 1563 ATT-INTERNET4, US
30036 2493 360 505 MEDIACOM-ENTERPRISE-BUSINESS, 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 7237 1705 149 UNI2-AS, ES
39891 4833 286 59 ALJAWWALSTC-AS, SA
20940 4066 3399 164 AKAMAI-ASN1, NL
8551 3889 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2949 2292 909 ROSTELECOM-AS, RU
9009 2659 249 1390 M247, RO
34984 2271 359 611 TELLCOM-AS, TR
6849 2017 307 18 UKRTELNET, UA
58224 1850 950 543 TCI, IR
13188 1606 100 26 TRIOLAN, 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 11234 3343 579 Uninet S.A. de C.V., MX
10620 3500 507 851 Telmex Colombia S.A., CO
13999 2317 355 615 Mega Cable, S.A. de C.V., MX
11830 2262 369 64 Instituto Costarricense de Electricidad
28573 1332 2324 240 Claro NXT Telecomunicacoes Ltda, BR
6503 1299 339 514 Axtel, S.A.B. de C.V., MX
3816 1293 760 170 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1133 370 22 Telefonica del Peru S.A.A., PE
11664 1103 180 447 Techtel LMDS Comunicaciones Interactiva
26615 1028 2498 45 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 1578 393 19 LINKdotNET-AS, EG
24835 1541 533 30 RAYA-AS, EG
36992 1338 1518 275 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1023 67 48 ORANGE-COTE-IVOIRE, CI
36935 875 520 42 Vodafone-, EG
6713 550 1861 34 IAM-AS, MA
15399 535 54 47 WANANCHI-, KE
37342 493 32 1 MOVITEL, MZ
24757 488 73 5 EthioNet-AS, ET
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 11234 3343 579 Uninet S.A. de C.V., MX
9808 9480 8705 39 CHINAMOBILE-CN China Mobile Communicati
16509 8240 10779 2906 AMAZON-02, US
12479 7237 1705 149 UNI2-AS, ES
7545 5728 786 689 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4865 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4833 286 59 ALJAWWALSTC-AS, SA
11492 4541 301 607 CABLEONE, US
20940 4066 3399 164 AKAMAI-ASN1, NL
7155 3967 279 48 VIASAT-SP-BACKBONE, US
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 9480 9441 CHINAMOBILE-CN China Mobile Communications Grou
12479 7237 7088 UNI2-AS, ES
16509 8240 5334 AMAZON-02, US
7545 5728 5039 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4865 4790 ERX-CERNET-BKB China Education and Research Net
39891 4833 4774 ALJAWWALSTC-AS, SA
11492 4541 3934 CABLEONE, US
7155 3967 3919 VIASAT-SP-BACKBONE, US
20940 4066 3902 AKAMAI-ASN1, NL
8551 3889 3852 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
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
3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V.,
398083 UNALLOCATED 5.133.124.0/24 399587 UT, US
33492 UNALLOCATED 8.6.184.0/23 33650 COMCAST-33650, US
33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US
12169 UNALLOCATED 8.15.207.0/24 3356 LEVEL3, 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
396894 UNALLOCATED 8.28.201.0/24 46887 LIGHTOWER, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, 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
23.131.185.0/24 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: 174 COGENT-174, US
23.131.188.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.136.112.0/24 Origin: 54835 UNASSIGNED
23.136.112.0/24 Transit: 21559 OSNET, PR
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 /11:103 /12:299
/13:578 /14:1198 /15:2034 /16:13480 /17:8257 /18:13837
/19:25149 /20:44265 /21:51412 /22:109764 /23:97735 /24:549596
/25:741 /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 6297 7237 UNI2-AS, ES
8151 5196 11234 Uninet S.A. de C.V., MX
39891 3632 4833 ALJAWWALSTC-AS, SA
11492 3450 4541 CABLEONE, US
8551 3361 3889 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
6327 3323 3514 SHAW, CA
7155 3039 3967 VIASAT-SP-BACKBONE, US
22773 2668 3600 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2150 2493 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2054 3500 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1703 2:1239 3:173 4:5 5:4490 6:128
7:6 8:1549 9:1 11:172 12:1548 13:391
14:2319 15:299 16:183 17:372 18:415 20:255
21:4 22:188 23:6227 24:2586 25:6 27:2489
29:19 31:2522 32:89 34:10 35:107 36:1932
37:4652 38:4438 39:811 40:151 41:3973 42:988
43:2351 44:308 45:16557 46:4265 47:363 49:1757
50:1838 51:571 52:1589 54:389 55:858 56:8
57:112 58:1757 59:1127 60:972 61:2447 62:2655
63:1923 64:5676 65:2320 66:4941 67:3016 68:1367
69:4162 70:1252 71:671 72:2968 74:2626 75:1466
76:610 77:2435 78:1864 79:3170 80:2095 81:1750
82:1486 83:1279 84:1533 85:2995 86:759 87:1986
88:1245 89:3613 90:612 91:7699 92:2064 93:2624
94:3592 95:4000 96:1328 97:336 98:1157 99:744
100:72 101:1071 102:2672 103:31271 104:4652 105:484
106:905 107:2526 108:1028 109:4425 110:2080 111:3234
112:2061 113:1565 114:1649 115:2022 116:1936 117:2557
118:2280 119:2020 120:1795 121:1115 122:2610 123:2160
124:1616 125:2524 128:1312 129:1060 130:1016 131:1984
132:811 133:422 134:1902 135:304 136:878 137:944
138:2550 139:1573 140:1232 141:1460 142:1436 143:1493
144:1164 145:347 146:1940 147:1574 148:2350 149:2092
150:871 151:1152 152:1844 153:488 154:4398 155:1435
156:1797 157:1309 158:1055 159:2287 160:2531 161:1518
162:3515 163:1516 164:1624 165:1711 166:1021 167:1723
168:3883 169:937 170:4616 171:886 172:3557 173:2940
174:1072 175:1153 176:3677 177:4583 178:3585 179:2132
180:2422 181:3424 182:3376 183:1930 184:2356 185:20185
186:4742 187:3966 188:4106 189:3546 190:9120 191:1435
192:10929 193:8865 194:7310 195:5157 196:3094 197:2395
198:5956 199:6099 200:8016 201:5852 202:10664 203:10223
204:4601 205:3555 206:4148 207:3459 208:4077 209:4867
210:4428 211:2487 212:4113 213:3576 214:1083 215:59
216:6633 217:2694 218:1295 219:577 220:2016 221:971
222:887 223:2184
End of report
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