[afnog] Weekly Global IPv4 Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Sep 17 18:03:25 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 18 Sep, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 862995
Prefixes after maximum aggregation (per Origin AS): 326303
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 415008
Total ASes present in the Internet Routing Table: 71963
Prefixes per ASN: 11.99
Origin-only ASes present in the Internet Routing Table: 61847
Origin ASes announcing only one prefix: 25513
Transit ASes present in the Internet Routing Table: 10116
Transit-only ASes present in the Internet Routing Table: 335
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 37
Max AS path prepend of ASN ( 45609) 34
Prefixes from unregistered ASNs in the Routing Table: 926
Number of instances of unregistered ASNs: 931
Number of 32-bit ASNs allocated by the RIRs: 37242
Number of 32-bit ASNs visible in the Routing Table: 30939
Prefixes from 32-bit ASNs in the Routing Table: 144083
Number of bogon 32-bit ASNs visible in the Routing Table: 32
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 465
Number of addresses announced to Internet: 3054633344
Equivalent to 182 /8s, 18 /16s and 1 /24s
Percentage of available address space announced: 82.5
Percentage of allocated address space announced: 82.5
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: 286863
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 231782
Total APNIC prefixes after maximum aggregation: 66191
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 227246
Unique aggregates announced from the APNIC address blocks: 91493
APNIC Region origin ASes present in the Internet Routing Table: 11963
APNIC Prefixes per ASN: 19.00
APNIC Region origin ASes announcing only one prefix: 3393
APNIC Region transit ASes present in the Internet Routing Table: 1675
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: 7118
Number of APNIC addresses announced to Internet: 773766656
Equivalent to 46 /8s, 30 /16s and 190 /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, 131072-147769
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: 251907
Total ARIN prefixes after maximum aggregation: 115275
ARIN Deaggregation factor: 2.19
Prefixes being announced from the ARIN address blocks: 251845
Unique aggregates announced from the ARIN address blocks: 120093
ARIN Region origin ASes present in the Internet Routing Table: 18911
ARIN Prefixes per ASN: 13.32
ARIN Region origin ASes announcing only one prefix: 6886
ARIN Region transit ASes present in the Internet Routing Table: 1956
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4111
Number of ARIN addresses announced to Internet: 1284624128
Equivalent to 76 /8s, 145 /16s and 207 /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: 240497
Total RIPE prefixes after maximum aggregation: 112388
RIPE Deaggregation factor: 2.14
Prefixes being announced from the RIPE address blocks: 236680
Unique aggregates announced from the RIPE address blocks: 144864
RIPE Region origin ASes present in the Internet Routing Table: 28032
RIPE Prefixes per ASN: 8.44
RIPE Region origin ASes announcing only one prefix: 12053
RIPE Region transit ASes present in the Internet Routing Table: 3903
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10392
Number of RIPE addresses announced to Internet: 711440512
Equivalent to 42 /8s, 103 /16s and 184 /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: 111606
Total LACNIC prefixes after maximum aggregation: 26532
LACNIC Deaggregation factor: 4.21
Prefixes being announced from the LACNIC address blocks: 112559
Unique aggregates announced from the LACNIC address blocks: 47147
LACNIC Region origin ASes present in the Internet Routing Table: 10785
LACNIC Prefixes per ASN: 10.44
LACNIC Region origin ASes announcing only one prefix: 2639
LACNIC Region transit ASes present in the Internet Routing Table: 2107
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8444
Number of LACNIC addresses announced to Internet: 176280064
Equivalent to 10 /8s, 129 /16s and 210 /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: 26277
Total AfriNIC prefixes after maximum aggregation: 5204
AfriNIC Deaggregation factor: 5.05
Prefixes being announced from the AfriNIC address blocks: 34200
Unique aggregates announced from the AfriNIC address blocks: 10999
AfriNIC Region origin ASes present in the Internet Routing Table: 1543
AfriNIC Prefixes per ASN: 22.16
AfriNIC Region origin ASes announcing only one prefix: 542
AfriNIC Region transit ASes present in the Internet Routing Table: 306
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 874
Number of AfriNIC addresses announced to Internet: 108186624
Equivalent to 6 /8s, 114 /16s and 204 /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 8037 9000 57 CMNET-GD Guangdong Mobile Communication
7545 5824 785 678 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4711 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3661 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3507 1023 56 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 2900 1897 56 VNPT-AS-VN VNPT Corp, VN
4766 2502 11120 582 KIXS-AS-KR Korea Telecom, KR
9498 2364 502 239 BBIL-AP BHARTI Airtel Ltd., IN
45090 2127 1198 75 CNNIC-TENCENT-NET-AP Shenzhen Tencent C
4755 2115 437 192 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 5576 9716 2467 AMAZON-02, US
11492 4650 308 759 CABLEONE, US
22773 4028 3035 307 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3961 264 32 VIASAT-SP-BACKBONE, US
16625 3590 1854 2500 AKAMAI-AS, US
6327 3368 1318 66 SHAW, CA
30036 2593 375 163 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2508 5029 448 CENTURYLINK-US-LEGACY-QWEST, US
20115 2241 3032 504 CHARTER-20115, US
5972 2166 489 787 DNIC-ASBLK-05800-06055, 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 6894 1726 143 UNI2-AS, ES
20940 3796 3348 215 AKAMAI-ASN1, NL
8551 3291 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
39891 3269 187 23 ALJAWWALSTC-AS, SA
12389 2907 2279 895 ROSTELECOM-AS, RU
9009 2508 262 1333 M247, GB
34984 2224 357 598 TELLCOM-AS, TR
61317 1776 267 976 ASDETUK www.heficed.com, GB
58224 1639 891 570 TCI, IR
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 8553 3454 577 Uninet S.A. de C.V., MX
10620 3416 523 677 Telmex Colombia S.A., CO
11830 2497 369 62 Instituto Costarricense de Electricidad
13999 1717 384 465 Mega Cable, S.A. de C.V., MX
6503 1514 359 477 Axtel, S.A.B. de C.V., MX
28573 1463 2304 231 CLARO S.A., BR
3816 1240 652 152 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1131 2351 134 TIM SA, BR
6147 1086 369 22 Telefonica del Peru S.A.A., PE
11172 957 111 70 Alestra, S. de R.L. de C.V., MX
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 1633 393 20 LINKdotNET-AS, EG
24835 1463 499 33 RAYA-AS, EG
36992 1289 1417 272 ETISALAT-MISR, EG
36903 1183 537 110 MT-MPLS, MA
29571 781 68 11 ORANGE-COTE-IVOIRE, CI
6713 612 1863 34 IAM-AS, MA
36935 578 522 40 Vodafone-, EG
15399 502 49 29 WANANCHI-, KE
37342 469 32 1 MOVITEL, MZ
2018 343 319 74 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 8553 3454 577 Uninet S.A. de C.V., MX
9808 8037 9000 57 CMNET-GD Guangdong Mobile Communication
12479 6894 1726 143 UNI2-AS, ES
7545 5824 785 678 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 5576 9716 2467 AMAZON-02, US
4538 4711 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4650 308 759 CABLEONE, US
22773 4028 3035 307 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3961 264 32 VIASAT-SP-BACKBONE, US
20940 3796 3348 215 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 8037 7980 CMNET-GD Guangdong Mobile Communication Co.Ltd.
12479 6894 6751 UNI2-AS, ES
7545 5824 5146 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4711 4637 ERX-CERNET-BKB China Education and Research Net
7155 3961 3929 VIASAT-SP-BACKBONE, US
11492 4650 3891 CABLEONE, US
22773 4028 3721 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3661 3641 VIETEL-AS-AP Viettel Group, VN
20940 3796 3581 AKAMAI-ASN1, NL
7713 3507 3451 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
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
395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, US
32306 UNALLOCATED 8.46.80.0/24 33652 CMCS, 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 /11:100 /12:301
/13:596 /14:1215 /15:2037 /16:13419 /17:8267 /18:14009
/19:25398 /20:42555 /21:50911 /22:107040 /23:92168 /24:503459
/25:1450 /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 5819 6894 UNI2-AS, ES
11492 3602 4650 CABLEONE, US
6327 3176 3368 SHAW, CA
7155 3049 3961 VIASAT-SP-BACKBONE, US
22773 2998 4028 ASN-CXA-ALL-CCI-22773-RDC, US
8151 2943 8553 Uninet S.A. de C.V., MX
39891 2805 3269 ALJAWWALSTC-AS, SA
8551 2757 3291 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2247 2593 MEDIACOM-ENTERPRISE-BUSINESS, US
11830 1931 2497 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)
----------------------------------------------
1:1913 2:1098 3:145 4:20 5:3599 6:83
7:5 8:1543 9:1 11:164 12:1735 13:385
14:2285 15:104 16:23 17:355 18:113 20:126
21:4 22:188 23:5101 24:2451 25:2 27:2532
29:19 31:2360 32:113 34:1 35:47 36:1728
37:3840 38:2237 39:641 40:165 41:3795 42:985
43:2060 44:286 45:15395 46:3737 47:354 48:7
49:1632 50:1813 51:101 52:1284 54:249 55:747
56:4 57:54 58:1736 59:1191 60:933 61:2314
62:2294 63:1955 64:5367 65:2363 66:4992 67:2868
68:1165 69:4121 70:1363 71:677 72:3154 74:2626
75:1499 76:696 77:2036 78:1679 79:2622 80:1872
81:1554 82:1399 83:1153 84:1310 85:2762 86:719
87:1826 88:973 89:3032 90:516 91:7381 92:1828
93:2551 94:3156 95:3500 96:1304 97:345 98:978
99:959 100:76 101:1057 102:1682 103:26934 104:4021
105:436 106:827 107:2335 108:729 109:3865 110:2047
111:3131 112:1938 113:1412 114:1473 115:1929 116:1872
117:2409 118:2305 119:1892 120:1555 121:1081 122:2524
123:2164 124:1605 125:2080 128:1347 129:1369 130:882
131:2027 132:773 133:362 134:1852 135:312 136:785
137:849 138:2394 139:1189 140:757 141:1215 142:1201
143:1351 144:1269 145:325 146:1517 147:1404 148:2159
149:1509 150:820 151:1086 152:1638 153:428 154:3056
155:1337 156:1761 157:1222 158:990 159:2027 160:2360
161:1254 162:3389 163:1097 164:1548 165:1430 166:593
167:1656 168:3635 169:692 170:4314 171:806 172:2755
173:2874 174:1001 175:1106 176:3282 177:4451 178:3001
179:1886 180:2245 181:2654 182:3252 183:2021 184:2417
185:18848 186:4240 187:3130 188:3341 189:2877 190:8688
191:1349 192:10724 193:8303 194:6784 195:4850 196:2908
197:2117 198:6030 199:5935 200:7363 201:5228 202:10527
203:10025 204:4525 205:3389 206:3784 207:3365 208:4036
209:4755 210:4180 211:2360 212:3769 213:3394 214:1168
215:64 216:6375 217:2588 218:1219 219:673 220:1958
221:980 222:854 223:2047
End of report
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