[SANOG] Weekly Global IPv4 Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Oct 29 18:03:06 UTC 2021
This is an automated weekly mailing describing the state of the Internet
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 http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
Global IPv4 Routing Table Report 04:00 +10GMT Sat 30 Oct, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 870998
Prefixes after maximum aggregation (per Origin AS): 330625
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 420290
Total ASes present in the Internet Routing Table: 72185
Prefixes per ASN: 12.07
Origin-only ASes present in the Internet Routing Table: 61995
Origin ASes announcing only one prefix: 25559
Transit ASes present in the Internet Routing Table: 10190
Transit-only ASes present in the Internet Routing Table: 349
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 53
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 906
Number of instances of unregistered ASNs: 910
Number of 32-bit ASNs allocated by the RIRs: 37687
Number of 32-bit ASNs visible in the Routing Table: 31261
Prefixes from 32-bit ASNs in the Routing Table: 146011
Number of bogon 32-bit ASNs visible in the Routing Table: 23
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 412
Number of addresses announced to Internet: 3071684096
Equivalent to 183 /8s, 22 /16s and 46 /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: 289786
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 232859
Total APNIC prefixes after maximum aggregation: 66598
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 228100
Unique aggregates announced from the APNIC address blocks: 92707
APNIC Region origin ASes present in the Internet Routing Table: 12077
APNIC Prefixes per ASN: 18.89
APNIC Region origin ASes announcing only one prefix: 3441
APNIC Region transit ASes present in the Internet Routing Table: 1700
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: 7251
Number of APNIC addresses announced to Internet: 772994432
Equivalent to 46 /8s, 18 /16s and 245 /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: 255120
Total ARIN prefixes after maximum aggregation: 117865
ARIN Deaggregation factor: 2.16
Prefixes being announced from the ARIN address blocks: 255232
Unique aggregates announced from the ARIN address blocks: 122364
ARIN Region origin ASes present in the Internet Routing Table: 18931
ARIN Prefixes per ASN: 13.48
ARIN Region origin ASes announcing only one prefix: 6851
ARIN Region transit ASes present in the Internet Routing Table: 1948
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4179
Number of ARIN addresses announced to Internet: 1301625344
Equivalent to 77 /8s, 149 /16s and 58 /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: 242238
Total RIPE prefixes after maximum aggregation: 113310
RIPE Deaggregation factor: 2.14
Prefixes being announced from the RIPE address blocks: 238370
Unique aggregates announced from the RIPE address blocks: 146176
RIPE Region origin ASes present in the Internet Routing Table: 28088
RIPE Prefixes per ASN: 8.49
RIPE Region origin ASes announcing only one prefix: 12093
RIPE Region transit ASes present in the Internet Routing Table: 3920
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 38
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10472
Number of RIPE addresses announced to Internet: 712202880
Equivalent to 42 /8s, 115 /16s and 90 /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: 113211
Total LACNIC prefixes after maximum aggregation: 26920
LACNIC Deaggregation factor: 4.21
Prefixes being announced from the LACNIC address blocks: 114105
Unique aggregates announced from the LACNIC address blocks: 47434
LACNIC Region origin ASes present in the Internet Routing Table: 10794
LACNIC Prefixes per ASN: 10.57
LACNIC Region origin ASes announcing only one prefix: 2626
LACNIC Region transit ASes present in the Internet Routing Table: 2129
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: 8463
Number of LACNIC addresses announced to Internet: 176399872
Equivalent to 10 /8s, 131 /16s and 166 /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: 26664
Total AfriNIC prefixes after maximum aggregation: 5249
AfriNIC Deaggregation factor: 5.08
Prefixes being announced from the AfriNIC address blocks: 34779
Unique aggregates announced from the AfriNIC address blocks: 11255
AfriNIC Region origin ASes present in the Internet Routing Table: 1567
AfriNIC Prefixes per ASN: 22.19
AfriNIC Region origin ASes announcing only one prefix: 548
AfriNIC Region transit ASes present in the Internet Routing Table: 311
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 42
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 896
Number of AfriNIC addresses announced to Internet: 108183808
Equivalent to 6 /8s, 114 /16s and 193 /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 8221 9000 57 CMNET-GD Guangdong Mobile Communication
7545 5844 787 684 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4663 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3590 1330 19 VIETEL-AS-AP Viettel Group, VN
7713 3499 1023 57 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3058 1896 54 VNPT-AS-VN VNPT Corp, VN
4766 2508 11119 578 KIXS-AS-KR Korea Telecom, KR
9498 2165 472 236 BBIL-AP BHARTI Airtel Ltd., IN
45090 2126 1198 75 CNNIC-TENCENT-NET-AP Shenzhen Tencent C
4755 2124 429 203 TATACOMM-AS TATA Communications formerl
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 5823 9989 2548 AMAZON-02, US
11492 4643 307 802 CABLEONE, US
22773 4060 3053 371 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3954 264 30 VIASAT-SP-BACKBONE, US
16625 3650 1886 2544 AKAMAI-AS, US
6327 3373 1318 69 SHAW, CA
749 2876 50735 2132 DNIC-AS-00749, US
30036 2594 375 164 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2522 5028 444 CENTURYLINK-US-LEGACY-QWEST, US
7018 2246 24165 1432 ATT-INTERNET4, US
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
12479 6877 1726 143 UNI2-AS, ES
20940 3912 3348 213 AKAMAI-ASN1, NL
8551 3289 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
39891 3271 187 23 ALJAWWALSTC-AS, SA
12389 2934 2283 898 ROSTELECOM-AS, RU
9009 2504 259 1321 M247, GB
34984 2238 358 602 TELLCOM-AS, TR
58224 1696 903 577 TCI, IR
61317 1683 224 938 ASDETUK www.heficed.com, GB
13188 1610 100 27 TRIOLAN, UA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 10584 3461 577 Uninet S.A. de C.V., MX
10620 3249 492 818 Telmex Colombia S.A., CO
11830 2469 369 62 Instituto Costarricense de Electricidad
13999 1634 288 453 Mega Cable, S.A. de C.V., MX
6503 1526 359 473 Axtel, S.A.B. de C.V., MX
28573 1446 2310 256 CLARO S.A., BR
3816 1240 651 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1132 2351 137 TIM SA, BR
6147 1098 369 22 Telefonica del Peru S.A.A., PE
11664 958 187 441 Techtel LMDS Comunicaciones Interactiva
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1605 393 21 LINKdotNET-AS, EG
24835 1552 503 33 RAYA-AS, EG
36992 1272 1414 268 ETISALAT-MISR, EG
36903 1183 537 110 MT-MPLS, MA
29571 812 68 11 ORANGE-COTE-IVOIRE, CI
36935 670 523 44 Vodafone-, EG
6713 611 1863 34 IAM-AS, MA
15399 514 50 31 WANANCHI-, KE
37342 470 32 1 MOVITEL, MZ
2018 342 319 73 TENET-1, ZA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 10584 3461 577 Uninet S.A. de C.V., MX
9808 8221 9000 57 CMNET-GD Guangdong Mobile Communication
12479 6877 1726 143 UNI2-AS, ES
7545 5844 787 684 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 5823 9989 2548 AMAZON-02, US
4538 4663 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4643 307 802 CABLEONE, US
22773 4060 3053 371 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3954 264 30 VIASAT-SP-BACKBONE, US
20940 3912 3348 213 AKAMAI-ASN1, NL
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 8221 8164 CMNET-GD Guangdong Mobile Communication Co.Ltd.
12479 6877 6734 UNI2-AS, ES
7545 5844 5160 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4663 4589 ERX-CERNET-BKB China Education and Research Net
7155 3954 3924 VIASAT-SP-BACKBONE, US
11492 4643 3841 CABLEONE, US
20940 3912 3699 AKAMAI-ASN1, NL
22773 4060 3689 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3590 3571 VIETEL-AS-AP Viettel Group, VN
7713 3499 3442 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
398418 UNALLOCATED 8.2.200.0/24 2914 NTT-COMMUNICATIONS-2914, US
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
23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 46887 LIGHTOWER, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
Complete listing at http://thyme.rand.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 http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.132.208.0/24 Origin: 7850 CITYLINKFIBER, US
23.132.208.0/24 Transit: 15164 UPNLLC, 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: 174 COGENT-174, US
41.57.124.0/23 Origin: 37442 UNASSIGNED
41.57.124.0/23 Transit: 37204 TELONE, ZW
Complete listing at http://thyme.rand.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 /11:99 /12:300
/13:597 /14:1214 /15:2047 /16:13590 /17:8320 /18:14037
/19:25517 /20:43160 /21:51181 /22:107432 /23:93998 /24:507983
/25:1453 /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 5840 6877 UNI2-AS, ES
8151 4384 10584 Uninet S.A. de C.V., MX
11492 3597 4643 CABLEONE, US
6327 3181 3373 SHAW, CA
7155 3044 3954 VIASAT-SP-BACKBONE, US
22773 3008 4060 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2807 3271 ALJAWWALSTC-AS, SA
8551 2754 3289 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2247 2594 MEDIACOM-ENTERPRISE-BUSINESS, US
11830 1921 2469 Instituto Costarricense de Electricidad y Telec
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1922 2:1056 3:145 4:19 5:3660 6:100
7:5 8:1554 9:1 11:172 12:1712 13:404
14:2292 15:119 16:25 17:371 18:123 20:130
21:4 22:188 23:5250 24:2406 25:2 27:2549
29:19 31:2375 32:106 34:1 35:47 36:1725
37:3910 38:2339 39:611 40:149 41:3820 42:1037
43:2072 44:290 45:15564 46:3727 47:321 49:1677
50:1850 51:100 52:1308 54:284 55:739 56:4
57:55 58:1741 59:1185 60:935 61:2340 62:2345
63:1958 64:5421 65:2355 66:4939 67:2874 68:1168
69:4102 70:1354 71:678 72:3155 74:2627 75:1496
76:699 77:2061 78:1736 79:2589 80:1864 81:1514
82:1379 83:1173 84:1296 85:2815 86:713 87:1870
88:982 89:3094 90:497 91:7440 92:1835 93:2570
94:3158 95:3568 96:1301 97:348 98:977 99:933
100:75 101:1035 102:1750 103:27310 104:4062 105:437
106:829 107:2391 108:739 109:3916 110:2048 111:3130
112:1964 113:1413 114:1507 115:1921 116:1894 117:2421
118:2328 119:1885 120:1610 121:1084 122:2536 123:2130
124:1596 125:2063 128:1396 129:1104 130:910 131:2054
132:745 133:364 134:1888 135:319 136:792 137:865
138:2413 139:1208 140:828 141:1290 142:1218 143:1381
144:1273 145:327 146:1567 147:1460 148:2221 149:1582
150:833 151:1091 152:1657 153:434 154:3207 155:1354
156:1802 157:1180 158:982 159:2045 160:2311 161:1258
162:3357 163:1108 164:1656 165:1474 166:604 167:1652
168:3652 169:679 170:4344 171:804 172:2776 173:3006
174:1005 175:1125 176:3372 177:4498 178:3017 179:1931
180:2262 181:2611 182:3139 183:2019 184:2417 185:18965
186:4207 187:3489 188:3580 189:3080 190:8649 191:1305
192:10959 193:8408 194:6849 195:4882 196:2876 197:2181
198:6084 199:5981 200:7382 201:5623 202:10522 203:10023
204:4530 205:3384 206:3798 207:3374 208:4005 209:4726
210:4217 211:2434 212:3747 213:3389 214:1155 215:64
216:6385 217:2623 218:1230 219:647 220:1955 221:975
222:852 223:2083
End of report
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