[menog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Dec 3 18:02:54 UTC 2021
This is an automated weekly mailing describing the state of the Gobal
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>.
Global IPv4 Routing Table Report 04:00 +10GMT Sat 04 Dec, 2021
BGP Table as seen in Japan.
Report Website: https://thyme.apnic.net
Detailed Analysis: https://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 872006
Prefixes after maximum aggregation (per Origin AS): 330232
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 422156
Number of IPv4 prefixes with ROAs (including AS0): 249668
Total ASes present in the Internet Routing Table: 72344
Prefixes per ASN: 12.05
Origin-only ASes present in the Internet Routing Table: 62105
Origin ASes announcing only one prefix: 25642
Transit ASes present in the Internet Routing Table: 10239
Transit-only ASes present in the Internet Routing Table: 369
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 53
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 887
Number of instances of unregistered ASNs: 889
Number of 32-bit ASNs allocated by the RIRs: 37979
Number of 32-bit ASNs visible in the Routing Table: 31483
Prefixes from 32-bit ASNs in the Routing Table: 145463
Number of bogon 32-bit ASNs visible in the Routing Table: 26
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 846
Number of addresses announced to Internet: 3072974336
Equivalent to 183 /8s, 41 /16s and 222 /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: 99.5
Total number of prefixes smaller than registry allocations: 290540
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 231180
Total APNIC prefixes after maximum aggregation: 64867
APNIC Deaggregation factor: 3.56
Prefixes being announced from the APNIC address blocks: 226302
Unique aggregates announced from the APNIC address blocks: 93047
APNIC Region origin ASes present in the Internet Routing Table: 12095
APNIC Prefixes per ASN: 18.71
APNIC Region origin ASes announcing only one prefix: 3445
APNIC Region transit ASes present in the Internet Routing Table: 1696
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7281
Number of APNIC addresses announced to Internet: 772945024
Equivalent to 46 /8s, 18 /16s and 52 /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: 256286
Total ARIN prefixes after maximum aggregation: 118209
ARIN Deaggregation factor: 2.17
Prefixes being announced from the ARIN address blocks: 255988
Unique aggregates announced from the ARIN address blocks: 122305
ARIN Region origin ASes present in the Internet Routing Table: 18945
ARIN Prefixes per ASN: 13.51
ARIN Region origin ASes announcing only one prefix: 6864
ARIN Region transit ASes present in the Internet Routing Table: 1961
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: 4238
Number of ARIN addresses announced to Internet: 1301094144
Equivalent to 77 /8s, 141 /16s and 31 /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: 243471
Total RIPE prefixes after maximum aggregation: 114034
RIPE Deaggregation factor: 2.14
Prefixes being announced from the RIPE address blocks: 239594
Unique aggregates announced from the RIPE address blocks: 147010
RIPE Region origin ASes present in the Internet Routing Table: 28167
RIPE Prefixes per ASN: 8.51
RIPE Region origin ASes announcing only one prefix: 12154
RIPE Region transit ASes present in the Internet Routing Table: 3936
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: 10564
Number of RIPE addresses announced to Internet: 713663360
Equivalent to 42 /8s, 137 /16s and 163 /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: 113023
Total LACNIC prefixes after maximum aggregation: 27152
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 113869
Unique aggregates announced from the LACNIC address blocks: 47730
LACNIC Region origin ASes present in the Internet Routing Table: 10809
LACNIC Prefixes per ASN: 10.53
LACNIC Region origin ASes announcing only one prefix: 2625
LACNIC Region transit ASes present in the Internet Routing Table: 2149
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 53
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8489
Number of LACNIC addresses announced to Internet: 176382720
Equivalent to 10 /8s, 131 /16s and 99 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-272796 + 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: 27159
Total AfriNIC prefixes after maximum aggregation: 5293
AfriNIC Deaggregation factor: 5.13
Prefixes being announced from the AfriNIC address blocks: 35407
Unique aggregates announced from the AfriNIC address blocks: 11292
AfriNIC Region origin ASes present in the Internet Routing Table: 1581
AfriNIC Prefixes per ASN: 22.40
AfriNIC Region origin ASes announcing only one prefix: 554
AfriNIC Region transit ASes present in the Internet Routing Table: 310
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 42
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 911
Number of AfriNIC addresses announced to Internet: 108346624
Equivalent to 6 /8s, 117 /16s and 61 /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 8752 9000 57 CHINAMOBILE-CN China Mobile Communicati
7545 5859 787 681 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4670 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3575 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3480 1022 56 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3251 1896 54 VNPT-AS-VN VNPT Corp, VN
4766 2501 11119 579 KIXS-AS-KR Korea Telecom, KR
9498 2187 476 238 BBIL-AP BHARTI Airtel Ltd., IN
45090 2136 1198 75 TENCENT-NET-AP Shenzhen Tencent Compute
4755 2121 429 203 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 6009 10029 2575 AMAZON-02, US
11492 4593 304 819 CABLEONE, US
22773 4016 3046 371 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3950 264 30 VIASAT-SP-BACKBONE, US
16625 3677 1896 2557 AKAMAI-AS, US
6327 3390 1318 64 SHAW, CA
749 2890 50784 2146 DNIC-AS-00749, US
30036 2604 374 129 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2525 5043 435 CENTURYLINK-US-LEGACY-QWEST, US
20115 2236 3032 502 CHARTER-20115, 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 6855 1733 150 UNI2-AS, ES
20940 3872 3348 209 AKAMAI-ASN1, NL
8551 3453 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
39891 3271 187 23 ALJAWWALSTC-AS, SA
12389 2935 2279 899 ROSTELECOM-AS, RU
9009 2568 264 1347 M247, GB
34984 2204 355 598 TELLCOM-AS, TR
58224 1753 917 576 TCI, IR
61317 1654 215 932 ASDETUK www.heficed.com, GB
13188 1610 100 27 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 10498 3450 583 Uninet S.A. de C.V., MX
10620 3252 491 832 Telmex Colombia S.A., CO
11830 2469 369 62 Instituto Costarricense de Electricidad
13999 1617 284 456 Mega Cable, S.A. de C.V., MX
6503 1434 354 521 Axtel, S.A.B. de C.V., MX
28573 1396 2317 261 CLARO S.A., BR
3816 1240 651 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1145 2351 141 TIM SA, BR
6147 1089 370 21 Telefonica del Peru S.A.A., PE
11664 981 189 442 Techtel LMDS Comunicaciones Interactiva
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 1625 393 21 LINKdotNET-AS, EG
24835 1549 499 32 RAYA-AS, EG
36992 1287 1430 268 ETISALAT-MISR, EG
36903 1195 543 114 MT-MPLS, MA
29571 821 68 11 ORANGE-COTE-IVOIRE, CI
36935 704 523 44 Vodafone-, EG
6713 612 1863 34 IAM-AS, MA
15399 517 50 31 WANANCHI-, KE
37342 470 32 1 MOVITEL, MZ
23889 428 232 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 10498 3450 583 Uninet S.A. de C.V., MX
9808 8752 9000 57 CHINAMOBILE-CN China Mobile Communicati
12479 6855 1733 150 UNI2-AS, ES
16509 6009 10029 2575 AMAZON-02, US
7545 5859 787 681 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4670 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4593 304 819 CABLEONE, US
22773 4016 3046 371 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3950 264 30 VIASAT-SP-BACKBONE, US
20940 3872 3348 209 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 8752 8695 CHINAMOBILE-CN China Mobile Communications Grou
12479 6855 6705 UNI2-AS, ES
7545 5859 5178 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4670 4596 ERX-CERNET-BKB China Education and Research Net
7155 3950 3920 VIASAT-SP-BACKBONE, US
11492 4593 3774 CABLEONE, US
20940 3872 3663 AKAMAI-ASN1, NL
22773 4016 3645 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3575 3555 VIETEL-AS-AP Viettel Group, VN
16509 6009 3434 AMAZON-02, 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
46990 UNALLOCATED 8.5.242.0/23 3356 LEVEL3, 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 8.33.224.0/24 174 COGENT-174, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US
1782 UNALLOCATED 8.42.19.0/24 46887 LIGHTOWER, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, US
32306 UNALLOCATED 8.46.80.0/24 33652 CMCS, US
Complete listing at https://thyme.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 6939 HURRICANE, US
Complete listing at https://thyme.apnic.net/current/data-dsua
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
23.252.160.0/24 Origin: 398968 GROUP-IID-01, US
23.252.160.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE
23.252.161.0/24 Origin: 398968 GROUP-IID-01, US
23.252.161.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE
23.252.162.0/24 Origin: 398968 GROUP-IID-01, US
23.252.162.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE
23.252.163.0/24 Origin: 398968 GROUP-IID-01, US
23.252.163.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE
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 /11:101 /12:305
/13:596 /14:1213 /15:2044 /16:13546 /17:8288 /18:13917
/19:25220 /20:43065 /21:50996 /22:107561 /23:93845 /24:510449
/25:790 /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 5786 6855 UNI2-AS, ES
8151 4324 10498 Uninet S.A. de C.V., MX
11492 3546 4593 CABLEONE, US
6327 3199 3390 SHAW, CA
7155 3040 3950 VIASAT-SP-BACKBONE, US
22773 2994 4016 ASN-CXA-ALL-CCI-22773-RDC, US
8551 2918 3453 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
39891 2807 3271 ALJAWWALSTC-AS, SA
30036 2259 2604 MEDIACOM-ENTERPRISE-BUSINESS, US
11830 1924 2469 Instituto Costarricense de Electricidad y Telec
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1912 2:1022 3:147 4:18 5:3709 6:100
7:5 8:1556 9:1 11:172 12:1706 13:407
14:2301 15:133 16:32 17:374 18:130 20:142
21:4 22:188 23:5325 24:2372 25:4 27:2552
29:19 31:2374 32:106 34:1 35:48 36:1726
37:3918 38:2381 39:659 40:149 41:3870 42:1041
43:2081 44:294 45:15643 46:3697 47:321 49:1661
50:1885 51:104 52:1343 54:290 55:725 56:4
57:55 58:1747 59:1130 60:940 61:2246 62:2395
63:1956 64:5402 65:2349 66:4914 67:2903 68:1184
69:4147 70:1343 71:676 72:3097 74:2613 75:1502
76:710 77:2137 78:1752 79:2706 80:1878 81:1489
82:1420 83:1176 84:1302 85:2819 86:700 87:1886
88:978 89:3117 90:478 91:7486 92:1886 93:2584
94:3219 95:3604 96:1301 97:342 98:985 99:899
100:76 101:1052 102:1814 103:27485 104:4078 105:429
106:844 107:2383 108:754 109:4003 110:2067 111:3140
112:1965 113:1519 114:1541 115:1939 116:1888 117:2467
118:2303 119:1844 120:1614 121:1042 122:2547 123:2136
124:1600 125:2047 128:1377 129:1114 130:915 131:2074
132:752 133:364 134:1919 135:287 136:792 137:861
138:2445 139:1206 140:814 141:1318 142:1231 143:1372
144:1256 145:330 146:1706 147:1465 148:2222 149:1579
150:852 151:1066 152:1655 153:443 154:3367 155:1352
156:1840 157:1197 158:987 159:2016 160:2329 161:1272
162:3408 163:1178 164:1658 165:1505 166:615 167:1662
168:3638 169:681 170:4309 171:807 172:2858 173:3052
174:1007 175:1143 176:3428 177:4489 178:3003 179:1951
180:2264 181:2656 182:3159 183:1925 184:2412 185:19066
186:4250 187:3515 188:3500 189:3086 190:8739 191:1333
192:11021 193:8460 194:6888 195:4957 196:2924 197:2354
198:6011 199:6005 200:7405 201:5547 202:10485 203:10020
204:4509 205:3371 206:3856 207:3361 208:4008 209:4633
210:4217 211:2416 212:3877 213:3406 214:1161 215:62
216:6394 217:2603 218:1214 219:621 220:1955 221:985
222:850 223:2119
End of report
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