[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Jan 6 18:03:10 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 07 Jan, 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: 918506
Prefixes after maximum aggregation (per Origin AS): 347602
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 444924
Total ASes present in the Internet Routing Table: 74024
Prefixes per ASN: 12.41
Origin-only ASes present in the Internet Routing Table: 63539
Origin ASes announcing only one prefix: 26133
Transit ASes present in the Internet Routing Table: 10485
Transit-only ASes present in the Internet Routing Table: 427
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 55
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 987
Number of instances of unregistered ASNs: 997
Number of 32-bit ASNs allocated by the RIRs: 41026
Number of 32-bit ASNs visible in the Routing Table: 33986
Prefixes from 32-bit ASNs in the Routing Table: 165664
Number of bogon 32-bit ASNs visible in the Routing Table: 29
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 505
Number of addresses announced to Internet: 3064057600
Equivalent to 182 /8s, 161 /16s and 207 /24s
Percentage of available address space announced: 82.8
Percentage of allocated address space announced: 82.8
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: 312021
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 240104
Total APNIC prefixes after maximum aggregation: 68678
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 234949
Unique aggregates announced from the APNIC address blocks: 97638
APNIC Region origin ASes present in the Internet Routing Table: 13227
APNIC Prefixes per ASN: 17.76
APNIC Region origin ASes announcing only one prefix: 3858
APNIC Region transit ASes present in the Internet Routing Table: 1772
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 25
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8485
Number of APNIC addresses announced to Internet: 773793408
Equivalent to 46 /8s, 31 /16s and 38 /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: 267526
Total ARIN prefixes after maximum aggregation: 121772
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 269111
Unique aggregates announced from the ARIN address blocks: 129742
ARIN Region origin ASes present in the Internet Routing Table: 19061
ARIN Prefixes per ASN: 14.12
ARIN Region origin ASes announcing only one prefix: 6981
ARIN Region transit ASes present in the Internet Routing Table: 1947
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4717
Number of ARIN addresses announced to Internet: 1286404864
Equivalent to 76 /8s, 172 /16s and 251 /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: 263977
Total RIPE prefixes after maximum aggregation: 122240
RIPE Deaggregation factor: 2.16
Prefixes being announced from the RIPE address blocks: 260781
Unique aggregates announced from the RIPE address blocks: 156113
RIPE Region origin ASes present in the Internet Routing Table: 28211
RIPE Prefixes per ASN: 9.24
RIPE Region origin ASes announcing only one prefix: 12029
RIPE Region transit ASes present in the Internet Routing Table: 3975
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: 10963
Number of RIPE addresses announced to Internet: 719491968
Equivalent to 42 /8s, 226 /16s and 147 /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: 117339
Total LACNIC prefixes after maximum aggregation: 28468
LACNIC Deaggregation factor: 4.12
Prefixes being announced from the LACNIC address blocks: 116575
Unique aggregates announced from the LACNIC address blocks: 48948
LACNIC Region origin ASes present in the Internet Routing Table: 11002
LACNIC Prefixes per ASN: 10.60
LACNIC Region origin ASes announcing only one prefix: 2670
LACNIC Region transit ASes present in the Internet Routing Table: 2272
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: 8768
Number of LACNIC addresses announced to Internet: 176031232
Equivalent to 10 /8s, 126 /16s and 6 /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: 28573
Total AfriNIC prefixes after maximum aggregation: 5696
AfriNIC Deaggregation factor: 5.02
Prefixes being announced from the AfriNIC address blocks: 36585
Unique aggregates announced from the AfriNIC address blocks: 12072
AfriNIC Region origin ASes present in the Internet Routing Table: 1710
AfriNIC Prefixes per ASN: 21.39
AfriNIC Region origin ASes announcing only one prefix: 595
AfriNIC Region transit ASes present in the Internet Routing Table: 328
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: 1053
Number of AfriNIC addresses announced to Internet: 108043008
Equivalent to 6 /8s, 112 /16s and 155 /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 9269 8884 50 CHINAMOBILE-CN China Mobile Communicati
7545 5941 786 700 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4860 4192 75 ERX-CERNET-BKB China Education and Rese
7552 3630 1331 21 VIETEL-AS-AP Viettel Group, VN
7713 3507 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3375 1874 95 VNPT-AS-VN VNPT Corp, VN
9498 2687 499 238 BBIL-AP BHARTI Airtel Ltd., IN
4766 2528 11251 593 KIXS-AS-KR Korea Telecom, KR
24560 2358 849 436 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 7729 10631 2940 AMAZON-02, US
11492 4548 301 565 CABLEONE, US
7155 3894 265 33 VIASAT-SP-BACKBONE, US
22773 3688 3062 319 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3520 1320 63 SHAW, CA
16625 3476 1802 2509 AKAMAI-AS, US
749 3024 50575 2291 DNIC-AS-00749, US
7018 2603 24131 1574 ATT-INTERNET4, US
396982 2574 3493 369 GOOGLE-CLOUD-PLATFORM, US
30036 2572 369 359 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 6955 1706 146 UNI2-AS, ES
9121 6127 1692 17 TTNET, TR
39891 4556 268 59 ALJAWWALSTC-AS, SA
20940 4062 3400 183 AKAMAI-ASN1, NL
8551 3910 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2941 2290 908 ROSTELECOM-AS, RU
47331 2807 411 2115 TTNET, TR
9009 2643 251 1356 M247, RO
34984 2255 358 611 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 10937 3332 596 Uninet S.A. de C.V., MX
10620 3466 507 852 Telmex Colombia S.A., CO
11830 2262 369 64 Instituto Costarricense de Electricidad
13999 2200 361 591 Mega Cable, S.A. de C.V., MX
28573 1346 2328 258 Claro NXT Telecomunicacoes Ltda, BR
6503 1295 339 517 Axtel, S.A.B. de C.V., MX
3816 1291 740 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1151 370 22 Telefonica del Peru S.A.A., PE
11664 1135 186 467 Techtel LMDS Comunicaciones Interactiva
26615 991 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 1538 533 30 RAYA-AS, EG
24863 1464 393 21 LINKdotNET-AS, EG
36992 1319 1517 275 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1013 67 43 ORANGE-COTE-IVOIRE, CI
36935 882 520 42 Vodafone-, EG
6713 611 1861 34 IAM-AS, MA
15399 519 53 42 WANANCHI-, KE
37342 494 32 1 MOVITEL, MZ
2018 374 319 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 10937 3332 596 Uninet S.A. de C.V., MX
9808 9269 8884 50 CHINAMOBILE-CN China Mobile Communicati
16509 7729 10631 2940 AMAZON-02, US
12479 6955 1706 146 UNI2-AS, ES
9121 6127 1692 17 TTNET, TR
7545 5941 786 700 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4860 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4556 268 59 ALJAWWALSTC-AS, SA
11492 4548 301 565 CABLEONE, US
20940 4062 3400 183 AKAMAI-ASN1, NL
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 9269 9219 CHINAMOBILE-CN China Mobile Communications Grou
12479 6955 6809 UNI2-AS, ES
9121 6127 6110 TTNET, TR
7545 5941 5241 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 7729 4789 AMAZON-02, US
4538 4860 4785 ERX-CERNET-BKB China Education and Research Net
39891 4556 4497 ALJAWWALSTC-AS, SA
11492 4548 3983 CABLEONE, US
20940 4062 3879 AKAMAI-ASN1, NL
8551 3910 3872 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
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
25674 UNALLOCATED 8.19.146.0/24 3356 LEVEL3, US
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, 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
23.136.112.0/24 Origin: 54835 UNASSIGNED
23.136.112.0/24 Transit: 21559 OSNET, PR
23.139.232.0/24 Origin: 211619 MAXKO, HR
23.139.232.0/24 Transit: 42864 GIGANET-HU GigaNet Internet Service Prov
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 /12:295
/13:582 /14:1204 /15:2045 /16:13500 /17:8308 /18:13927
/19:25195 /20:44304 /21:52349 /22:110197 /23:98163 /24:547455
/25:813 /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 6002 6955 UNI2-AS, ES
9121 5302 6127 TTNET, TR
8151 4953 10937 Uninet S.A. de C.V., MX
39891 3547 4556 ALJAWWALSTC-AS, SA
11492 3455 4548 CABLEONE, US
8551 3375 3910 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
6327 3328 3520 SHAW, CA
7155 2983 3894 VIASAT-SP-BACKBONE, US
22773 2723 3688 ASN-CXA-ALL-CCI-22773-RDC, US
47331 2428 2807 TTNET, TR
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1637 2:1241 3:168 4:5 5:4104 6:110
7:5 8:1575 9:1 11:172 12:1596 13:368
14:2370 15:284 16:76 17:370 18:412 20:243
21:4 22:188 23:6046 24:2465 25:4 27:2706
29:19 31:2494 32:104 34:8 35:95 36:1839
37:4595 38:4004 39:823 40:144 41:3921 42:1058
43:2317 44:302 45:16490 46:4217 47:381 49:1725
50:1936 51:378 52:1544 54:395 55:798 56:8
57:78 58:1746 59:1157 60:1006 61:2427 62:2632
63:1935 64:5612 65:2324 66:4896 67:3046 68:1335
69:4139 70:1256 71:656 72:2984 74:2592 75:1465
76:597 77:2372 78:3960 79:3159 80:2058 81:1834
82:1479 83:1229 84:1514 85:3749 86:751 87:1925
88:2875 89:3556 90:587 91:7653 92:1984 93:2578
94:3531 95:4849 96:1315 97:344 98:1162 99:738
100:75 101:1061 102:2506 103:30736 104:4598 105:484
106:847 107:2533 108:916 109:4393 110:2047 111:3321
112:2029 113:1555 114:1611 115:2047 116:1895 117:2512
118:2288 119:1894 120:1749 121:1110 122:2584 123:2146
124:1576 125:2335 128:1294 129:1060 130:968 131:2013
132:801 133:405 134:1900 135:297 136:891 137:921
138:2583 139:1515 140:1036 141:1482 142:1419 143:1434
144:1189 145:352 146:1895 147:1543 148:2278 149:1870
150:862 151:1136 152:1850 153:477 154:3883 155:1410
156:1644 157:1294 158:1047 159:2252 160:2570 161:1432
162:3542 163:1488 164:1672 165:1650 166:835 167:1738
168:3880 169:919 170:4568 171:889 172:3495 173:3059
174:1028 175:1149 176:3718 177:4754 178:3551 179:2146
180:2377 181:3387 182:3279 183:1936 184:2350 185:19995
186:4615 187:3920 188:4110 189:3432 190:9042 191:1460
192:10978 193:8848 194:7214 195:5095 196:2982 197:2403
198:5993 199:6086 200:7721 201:5875 202:10636 203:10050
204:4600 205:3503 206:3856 207:3403 208:4102 209:4812
210:4431 211:2497 212:4093 213:3547 214:1103 215:55
216:6579 217:2636 218:1276 219:575 220:2027 221:965
222:842 223:2007
End of report
More information about the sanog
mailing list