[menog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Dec 24 18:02:58 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 25 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: 885163
Prefixes after maximum aggregation (per Origin AS): 332925
Deaggregation factor: 2.66
Unique aggregates announced (without unneeded subnets): 424656
Number of IPv4 prefixes with ROAs (including AS0): 252939
Total ASes present in the Internet Routing Table: 72523
Prefixes per ASN: 12.21
Origin-only ASes present in the Internet Routing Table: 62238
Origin ASes announcing only one prefix: 25678
Transit ASes present in the Internet Routing Table: 10285
Transit-only ASes present in the Internet Routing Table: 371
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: 920
Number of instances of unregistered ASNs: 922
Number of 32-bit ASNs allocated by the RIRs: 38178
Number of 32-bit ASNs visible in the Routing Table: 31711
Prefixes from 32-bit ASNs in the Routing Table: 147279
Number of bogon 32-bit ASNs visible in the Routing Table: 19
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 724
Number of addresses announced to Internet: 3073270528
Equivalent to 183 /8s, 46 /16s and 99 /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: 299290
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 233109
Total APNIC prefixes after maximum aggregation: 65222
APNIC Deaggregation factor: 3.57
Prefixes being announced from the APNIC address blocks: 227930
Unique aggregates announced from the APNIC address blocks: 93654
APNIC Region origin ASes present in the Internet Routing Table: 12197
APNIC Prefixes per ASN: 18.69
APNIC Region origin ASes announcing only one prefix: 3466
APNIC Region transit ASes present in the Internet Routing Table: 1712
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7383
Number of APNIC addresses announced to Internet: 773501824
Equivalent to 46 /8s, 26 /16s and 179 /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: 257192
Total ARIN prefixes after maximum aggregation: 118517
ARIN Deaggregation factor: 2.17
Prefixes being announced from the ARIN address blocks: 256825
Unique aggregates announced from the ARIN address blocks: 122511
ARIN Region origin ASes present in the Internet Routing Table: 18930
ARIN Prefixes per ASN: 13.57
ARIN Region origin ASes announcing only one prefix: 6857
ARIN Region transit ASes present in the Internet Routing Table: 1951
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4263
Number of ARIN addresses announced to Internet: 1300922624
Equivalent to 77 /8s, 138 /16s and 129 /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: 252861
Total RIPE prefixes after maximum aggregation: 115963
RIPE Deaggregation factor: 2.18
Prefixes being announced from the RIPE address blocks: 249288
Unique aggregates announced from the RIPE address blocks: 148383
RIPE Region origin ASes present in the Internet Routing Table: 28169
RIPE Prefixes per ASN: 8.85
RIPE Region origin ASes announcing only one prefix: 12148
RIPE Region transit ASes present in the Internet Routing Table: 3942
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10587
Number of RIPE addresses announced to Internet: 713691520
Equivalent to 42 /8s, 138 /16s and 17 /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: 113477
Total LACNIC prefixes after maximum aggregation: 27242
LACNIC Deaggregation factor: 4.17
Prefixes being announced from the LACNIC address blocks: 114273
Unique aggregates announced from the LACNIC address blocks: 47761
LACNIC Region origin ASes present in the Internet Routing Table: 10881
LACNIC Prefixes per ASN: 10.50
LACNIC Region origin ASes announcing only one prefix: 2655
LACNIC Region transit ASes present in the Internet Routing Table: 2195
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 53
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8560
Number of LACNIC addresses announced to Internet: 176297728
Equivalent to 10 /8s, 130 /16s and 23 /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: 27604
Total AfriNIC prefixes after maximum aggregation: 5293
AfriNIC Deaggregation factor: 5.22
Prefixes being announced from the AfriNIC address blocks: 36123
Unique aggregates announced from the AfriNIC address blocks: 11694
AfriNIC Region origin ASes present in the Internet Routing Table: 1586
AfriNIC Prefixes per ASN: 22.78
AfriNIC Region origin ASes announcing only one prefix: 552
AfriNIC Region transit ASes present in the Internet Routing Table: 312
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 918
Number of AfriNIC addresses announced to Internet: 108400128
Equivalent to 6 /8s, 118 /16s and 14 /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 5837 787 681 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4692 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3602 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3481 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3245 1880 58 VNPT-AS-VN VNPT Corp, VN
4766 2475 11119 576 KIXS-AS-KR Korea Telecom, KR
9498 2211 475 235 BBIL-AP BHARTI Airtel Ltd., IN
45090 2136 1198 75 TENCENT-NET-AP Shenzhen Tencent Compute
4755 2122 429 204 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 6058 10131 2597 AMAZON-02, US
11492 4580 303 821 CABLEONE, US
22773 4031 3036 388 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3950 264 30 VIASAT-SP-BACKBONE, US
16625 3657 1885 2555 AKAMAI-AS, US
6327 3391 1319 65 SHAW, CA
749 2890 50784 2146 DNIC-AS-00749, US
30036 2603 374 146 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2523 5043 432 CENTURYLINK-US-LEGACY-QWEST, US
20115 2241 3033 501 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 6840 1733 150 UNI2-AS, ES
9121 6670 1692 17 TTNET, TR
20940 3858 3348 210 AKAMAI-ASN1, NL
8551 3554 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
39891 3271 187 23 ALJAWWALSTC-AS, SA
12389 2949 2284 902 ROSTELECOM-AS, RU
9009 2552 263 1360 M247, GB
34984 2205 355 600 TELLCOM-AS, TR
47331 1977 319 1509 TTNET, TR
58224 1772 922 577 TCI, IR
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 10571 3451 583 Uninet S.A. de C.V., MX
10620 3263 491 836 Telmex Colombia S.A., CO
11830 2466 369 62 Instituto Costarricense de Electricidad
13999 1638 283 462 Mega Cable, S.A. de C.V., MX
6503 1440 355 522 Axtel, S.A.B. de C.V., MX
28573 1401 2324 256 CLARO S.A., BR
3816 1244 657 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1140 2350 138 TIM SA, BR
6147 1090 369 21 Telefonica del Peru S.A.A., PE
11664 994 191 443 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 1628 393 21 LINKdotNET-AS, EG
24835 1548 499 32 RAYA-AS, EG
36992 1294 1462 268 ETISALAT-MISR, EG
36903 1195 543 114 MT-MPLS, MA
29571 852 68 11 ORANGE-COTE-IVOIRE, CI
36935 685 521 39 Vodafone-, EG
6713 612 1863 34 IAM-AS, MA
15399 517 50 33 WANANCHI-, KE
37342 470 32 1 MOVITEL, MZ
23889 429 232 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 10571 3451 583 Uninet S.A. de C.V., MX
9808 8744 9000 57 CHINAMOBILE-CN China Mobile Communicati
12479 6840 1733 150 UNI2-AS, ES
9121 6670 1692 17 TTNET, TR
16509 6058 10131 2597 AMAZON-02, US
7545 5837 787 681 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4692 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4580 303 821 CABLEONE, US
22773 4031 3036 388 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3950 264 30 VIASAT-SP-BACKBONE, US
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 6840 6690 UNI2-AS, ES
9121 6670 6653 TTNET, TR
7545 5837 5156 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4692 4618 ERX-CERNET-BKB China Education and Research Net
7155 3950 3920 VIASAT-SP-BACKBONE, US
11492 4580 3759 CABLEONE, US
20940 3858 3648 AKAMAI-ASN1, NL
22773 4031 3643 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3602 3582 VIETEL-AS-AP Viettel Group, VN
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 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
23.141.0.0/24 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
/13:592 /14:1213 /15:2040 /16:13563 /17:8327 /18:13920
/19:25271 /20:43287 /21:52000 /22:108460 /23:95438 /24:519801
/25:776 /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
9121 5859 6670 TTNET, TR
12479 5783 6840 UNI2-AS, ES
8151 4396 10571 Uninet S.A. de C.V., MX
11492 3533 4580 CABLEONE, US
6327 3199 3391 SHAW, CA
7155 3040 3950 VIASAT-SP-BACKBONE, US
8551 3019 3554 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 3006 4031 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2807 3271 ALJAWWALSTC-AS, SA
30036 2258 2603 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1902 2:989 3:148 4:18 5:3687 6:102
7:5 8:1563 9:1 11:172 12:1699 13:409
14:2314 15:135 16:35 17:373 18:130 20:143
21:4 22:188 23:5364 24:2355 25:4 27:2576
29:19 31:2434 32:106 34:1 35:49 36:1728
37:3909 38:2416 39:710 40:148 41:3915 42:1052
43:2134 44:295 45:16056 46:3865 47:300 49:1652
50:1906 51:106 52:1352 54:289 55:731 56:4
57:59 58:1752 59:1138 60:947 61:2244 62:2419
63:1943 64:5404 65:2331 66:4927 67:2921 68:1185
69:4165 70:1340 71:676 72:3064 74:2618 75:1505
76:711 77:2131 78:3820 79:2773 80:1910 81:1647
82:1422 83:1194 84:1319 85:3572 86:692 87:1898
88:2621 89:3125 90:493 91:7520 92:1889 93:2572
94:3273 95:4516 96:1298 97:344 98:989 99:878
100:75 101:1049 102:1885 103:28048 104:4089 105:453
106:852 107:2413 108:750 109:4043 110:2057 111:3168
112:1938 113:1491 114:1558 115:1934 116:1890 117:2504
118:2308 119:1878 120:1625 121:1007 122:2527 123:2125
124:1618 125:2078 128:1388 129:1145 130:905 131:2071
132:753 133:365 134:1930 135:283 136:845 137:861
138:2441 139:1219 140:863 141:1320 142:1235 143:1412
144:1228 145:333 146:1748 147:1453 148:2213 149:1608
150:866 151:1078 152:1846 153:443 154:3577 155:1361
156:1874 157:1214 158:993 159:1999 160:2376 161:1281
162:3430 163:1189 164:1677 165:1543 166:619 167:1675
168:3657 169:689 170:4322 171:824 172:2919 173:3043
174:1005 175:1123 176:3433 177:4506 178:3022 179:1983
180:2340 181:2704 182:3198 183:1921 184:2416 185:19163
186:4227 187:3499 188:3666 189:3121 190:8843 191:1314
192:10990 193:8495 194:6943 195:4984 196:2907 197:2384
198:5997 199:5971 200:7437 201:5696 202:10503 203:10085
204:4506 205:3408 206:3847 207:3352 208:3996 209:4591
210:4247 211:2443 212:3915 213:3358 214:1152 215:64
216:6400 217:2636 218:1212 219:608 220:1968 221:1018
222:843 223:2146
End of report
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