[afnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Nov 26 18:02:57 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 27 Nov, 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: 872472
Prefixes after maximum aggregation (per Origin AS): 330087
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 421607
Number of IPv4 prefixes with ROAs (including AS0): 247772
Total ASes present in the Internet Routing Table: 72382
Prefixes per ASN: 12.05
Origin-only ASes present in the Internet Routing Table: 62143
Origin ASes announcing only one prefix: 25685
Transit ASes present in the Internet Routing Table: 10239
Transit-only ASes present in the Internet Routing Table: 357
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: 893
Number of instances of unregistered ASNs: 897
Number of 32-bit ASNs allocated by the RIRs: 37925
Number of 32-bit ASNs visible in the Routing Table: 31495
Prefixes from 32-bit ASNs in the Routing Table: 145183
Number of bogon 32-bit ASNs visible in the Routing Table: 24
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 862
Number of addresses announced to Internet: 3071623936
Equivalent to 183 /8s, 21 /16s and 67 /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: 290843
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 231533
Total APNIC prefixes after maximum aggregation: 64938
APNIC Deaggregation factor: 3.57
Prefixes being announced from the APNIC address blocks: 226709
Unique aggregates announced from the APNIC address blocks: 93050
APNIC Region origin ASes present in the Internet Routing Table: 12153
APNIC Prefixes per ASN: 18.65
APNIC Region origin ASes announcing only one prefix: 3493
APNIC Region transit ASes present in the Internet Routing Table: 1710
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: 7333
Number of APNIC addresses announced to Internet: 773087360
Equivalent to 46 /8s, 20 /16s and 96 /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: 256209
Total ARIN prefixes after maximum aggregation: 118264
ARIN Deaggregation factor: 2.17
Prefixes being announced from the ARIN address blocks: 255844
Unique aggregates announced from the ARIN address blocks: 122186
ARIN Region origin ASes present in the Internet Routing Table: 18952
ARIN Prefixes per ASN: 13.50
ARIN Region origin ASes announcing only one prefix: 6862
ARIN Region transit ASes present in the Internet Routing Table: 1967
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: 4229
Number of ARIN addresses announced to Internet: 1301302016
Equivalent to 77 /8s, 144 /16s and 75 /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: 243696
Total RIPE prefixes after maximum aggregation: 113966
RIPE Deaggregation factor: 2.14
Prefixes being announced from the RIPE address blocks: 239822
Unique aggregates announced from the RIPE address blocks: 146828
RIPE Region origin ASes present in the Internet Routing Table: 28162
RIPE Prefixes per ASN: 8.52
RIPE Region origin ASes announcing only one prefix: 12153
RIPE Region transit ASes present in the Internet Routing Table: 3938
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: 10550
Number of RIPE addresses announced to Internet: 712438400
Equivalent to 42 /8s, 118 /16s and 242 /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: 113030
Total LACNIC prefixes after maximum aggregation: 27001
LACNIC Deaggregation factor: 4.19
Prefixes being announced from the LACNIC address blocks: 113942
Unique aggregates announced from the LACNIC address blocks: 47540
LACNIC Region origin ASes present in the Internet Routing Table: 10805
LACNIC Prefixes per ASN: 10.55
LACNIC Region origin ASes announcing only one prefix: 2627
LACNIC Region transit ASes present in the Internet Routing Table: 2145
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: 8482
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: 27111
Total AfriNIC prefixes after maximum aggregation: 5239
AfriNIC Deaggregation factor: 5.17
Prefixes being announced from the AfriNIC address blocks: 35293
Unique aggregates announced from the AfriNIC address blocks: 11220
AfriNIC Region origin ASes present in the Internet Routing Table: 1571
AfriNIC Prefixes per ASN: 22.47
AfriNIC Region origin ASes announcing only one prefix: 550
AfriNIC Region transit ASes present in the Internet Routing Table: 304
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: 901
Number of AfriNIC addresses announced to Internet: 107848192
Equivalent to 6 /8s, 109 /16s and 162 /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 8744 9000 57 CHINAMOBILE-CN China Mobile Communicati
7545 5861 787 684 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4665 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3593 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3495 1023 57 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3233 1896 54 VNPT-AS-VN VNPT Corp, VN
4766 2503 11119 579 KIXS-AS-KR Korea Telecom, KR
9498 2182 475 237 BBIL-AP BHARTI Airtel Ltd., IN
45090 2135 1198 75 TENCENT-NET-AP Shenzhen Tencent Compute
4755 2121 429 202 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 6016 10015 2587 AMAZON-02, US
11492 4593 304 821 CABLEONE, US
22773 4017 3047 372 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3950 264 30 VIASAT-SP-BACKBONE, US
16625 3679 1896 2559 AKAMAI-AS, US
6327 3389 1318 65 SHAW, CA
749 2890 50784 2146 DNIC-AS-00749, US
30036 2599 373 153 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2522 5043 434 CENTURYLINK-US-LEGACY-QWEST, US
20115 2243 3033 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 6863 1731 149 UNI2-AS, ES
20940 3922 3348 218 AKAMAI-ASN1, NL
8551 3448 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
39891 3271 187 23 ALJAWWALSTC-AS, SA
12389 2932 2279 898 ROSTELECOM-AS, RU
9009 2559 263 1348 M247, GB
34984 2204 355 601 TELLCOM-AS, TR
58224 1759 918 579 TCI, IR
61317 1653 214 927 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 10647 3450 577 Uninet S.A. de C.V., MX
10620 3251 491 826 Telmex Colombia S.A., CO
11830 2467 369 62 Instituto Costarricense de Electricidad
13999 1612 285 457 Mega Cable, S.A. de C.V., MX
6503 1488 357 499 Axtel, S.A.B. de C.V., MX
28573 1395 2317 257 CLARO S.A., BR
3816 1240 651 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1139 2351 139 TIM SA, BR
6147 1087 369 21 Telefonica del Peru S.A.A., PE
11664 980 189 441 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 1632 393 21 LINKdotNET-AS, EG
24835 1553 507 33 RAYA-AS, EG
36992 1286 1430 268 ETISALAT-MISR, EG
36903 1183 537 110 MT-MPLS, MA
29571 825 68 11 ORANGE-COTE-IVOIRE, CI
36935 703 523 44 Vodafone-, EG
6713 612 1863 34 IAM-AS, MA
15399 516 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 10647 3450 577 Uninet S.A. de C.V., MX
9808 8744 9000 57 CHINAMOBILE-CN China Mobile Communicati
12479 6863 1731 149 UNI2-AS, ES
16509 6016 10015 2587 AMAZON-02, US
7545 5861 787 684 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4665 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4593 304 821 CABLEONE, US
22773 4017 3047 372 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3950 264 30 VIASAT-SP-BACKBONE, US
20940 3922 3348 218 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 8744 8687 CHINAMOBILE-CN China Mobile Communications Grou
12479 6863 6714 UNI2-AS, ES
7545 5861 5177 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4665 4591 ERX-CERNET-BKB China Education and Research Net
7155 3950 3920 VIASAT-SP-BACKBONE, US
11492 4593 3772 CABLEONE, US
20940 3922 3704 AKAMAI-ASN1, NL
22773 4017 3645 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3593 3573 VIETEL-AS-AP Viettel Group, VN
7713 3495 3438 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
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 /12:304
/13:597 /14:1216 /15:2046 /16:13550 /17:8270 /18:13913
/19:25222 /20:43098 /21:50983 /22:107611 /23:93957 /24:510735
/25:799 /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 5810 6863 UNI2-AS, ES
8151 4446 10647 Uninet S.A. de C.V., MX
11492 3546 4593 CABLEONE, US
6327 3197 3389 SHAW, CA
7155 3040 3950 VIASAT-SP-BACKBONE, US
22773 2994 4017 ASN-CXA-ALL-CCI-22773-RDC, US
8551 2913 3448 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
39891 2807 3271 ALJAWWALSTC-AS, SA
30036 2254 2599 MEDIACOM-ENTERPRISE-BUSINESS, US
11830 1921 2467 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 2:1036 3:146 4:18 5:3721 6:100
7:5 8:1556 9:1 11:172 12:1707 13:411
14:2281 15:132 16:32 17:374 18:130 20:142
21:4 22:188 23:5325 24:2371 25:4 27:2565
29:19 31:2372 32:106 34:1 35:48 36:1736
37:3911 38:2372 39:651 40:149 41:3903 42:1023
43:2095 44:294 45:15638 46:3795 47:322 49:1688
50:1881 51:104 52:1345 54:288 55:647 56:4
57:55 58:1745 59:1128 60:940 61:2246 62:2408
63:1951 64:5410 65:2350 66:4944 67:2899 68:1174
69:4148 70:1344 71:678 72:3093 74:2615 75:1502
76:710 77:2133 78:1748 79:2702 80:1875 81:1497
82:1415 83:1174 84:1300 85:2827 86:700 87:1884
88:978 89:3144 90:488 91:7501 92:1891 93:2573
94:3227 95:3588 96:1299 97:347 98:983 99:911
100:76 101:1057 102:1792 103:27563 104:4103 105:424
106:842 107:2391 108:753 109:3989 110:2066 111:3148
112:1960 113:1519 114:1541 115:1937 116:1892 117:2480
118:2306 119:1850 120:1619 121:1042 122:2547 123:2133
124:1598 125:2043 128:1408 129:1102 130:914 131:2068
132:748 133:366 134:1918 135:285 136:785 137:859
138:2432 139:1204 140:842 141:1313 142:1225 143:1351
144:1251 145:330 146:1685 147:1461 148:2229 149:1586
150:852 151:1088 152:1651 153:442 154:3310 155:1363
156:1832 157:1201 158:988 159:2017 160:2329 161:1272
162:3409 163:1174 164:1648 165:1502 166:603 167:1668
168:3633 169:682 170:4301 171:807 172:2849 173:3044
174:1005 175:1134 176:3419 177:4466 178:3004 179:1943
180:2266 181:2621 182:3168 183:1924 184:2410 185:19053
186:4237 187:3532 188:3632 189:3107 190:8747 191:1336
192:11008 193:8430 194:6892 195:4931 196:2901 197:2316
198:6016 199:6010 200:7432 201:5675 202:10519 203:10058
204:4501 205:3386 206:3848 207:3381 208:4010 209:4611
210:4232 211:2435 212:3835 213:3384 214:1162 215:64
216:6392 217:2609 218:1213 219:620 220:1965 221:989
222:852 223:2106
End of report
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