[cmNOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Mar 7 18:02:20 UTC 2025
This is an automated weekly mailing describing the state of the Global
IPv4 Routing Table as seen from APNIC's router in Japan.
The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
UKNOF, 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>.
IPv4 Routing Table Report 04:00 +10GMT Sat 08 Mar, 2025
IPv4 BGP Table (Global) as seen at Japan.
Report Website: https://thyme.apnic.net
Detailed Analysis: https://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 977265
Prefixes after maximum aggregation (per Origin AS): 374191
Deaggregation factor: 2.61
Unique aggregates announced (without unneeded subnets): 476518
Number of IPv4 prefixes with a valid ROA: 527090
Number of IPv4 prefixes with an invalid ROA: 3349
Number of IPv4 prefixes with no ROA: 446826
Total ASes present in the Internet Routing Table: 76672
Prefixes per ASN: 12.75
Origin-only ASes present in the Internet Routing Table: 65630
Origin ASes announcing only one prefix: 26865
Transit ASes present in the Internet Routing Table: 11042
Transit-only ASes present in the Internet Routing Table: 548
Average AS path length visible in the Internet Routing Table: 5.2
Max AS path length visible: 65
Max AS path prepend of ASN ( 37447) 57
Prefixes from unregistered ASNs in the Routing Table: 986
Number of instances of unregistered ASNs: 1002
Number of 32-bit ASNs allocated by the RIRs: 46177
Number of 32-bit ASNs visible in the Routing Table: 37919
Prefixes from 32-bit ASNs in the Routing Table: 199534
Number of bogon 32-bit ASNs visible in the Routing Table: 61
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 465
Number of addresses announced to Internet: 3111649920
Equivalent to 185 /8s, 120 /16s and 2 /24s
Percentage of available address space announced: 84.0
Percentage of allocated address space announced: 84.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 320616
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 256684
Total APNIC prefixes after maximum aggregation: 76718
APNIC Deaggregation factor: 3.35
Prefixes being announced from the APNIC address blocks: 248483
Unique aggregates announced from the APNIC address blocks: 102720
APNIC Region origin ASes present in the Internet Routing Table: 14554
APNIC Prefixes per ASN: 17.07
APNIC Region origin ASes announcing only one prefix: 4431
APNIC Region transit ASes present in the Internet Routing Table: 1961
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 40
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10032
Number of APNIC addresses announced to Internet: 750165504
Equivalent to 44 /8s, 182 /16s and 158 /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, 131072-155961
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: 288384
Total ARIN prefixes after maximum aggregation: 128373
ARIN Deaggregation factor: 2.25
Prefixes being announced from the ARIN address blocks: 289196
Unique aggregates announced from the ARIN address blocks: 136497
ARIN Region origin ASes present in the Internet Routing Table: 19236
ARIN Prefixes per ASN: 15.03
ARIN Region origin ASes announcing only one prefix: 7016
ARIN Region transit ASes present in the Internet Routing Table: 1999
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5169
Number of ARIN addresses announced to Internet: 1350146304
Equivalent to 80 /8s, 121 /16s and 153 /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, 393216-402332
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, 45/8, 47/8, 48/8, 50/8, 52/8,
54/8, 55/8, 56/8, 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: 272463
Total RIPE prefixes after maximum aggregation: 132410
RIPE Deaggregation factor: 2.06
Prefixes being announced from the RIPE address blocks: 270332
Unique aggregates announced from the RIPE address blocks: 172762
RIPE Region origin ASes present in the Internet Routing Table: 28844
RIPE Prefixes per ASN: 9.37
RIPE Region origin ASes announcing only one prefix: 12056
RIPE Region transit ASes present in the Internet Routing Table: 3993
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 45
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12289
Number of RIPE addresses announced to Internet: 732763776
Equivalent to 43 /8s, 173 /16s and 22 /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
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
53/8, 57/8, 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: 123781
Total LACNIC prefixes after maximum aggregation: 29229
LACNIC Deaggregation factor: 4.23
Prefixes being announced from the LACNIC address blocks: 120692
Unique aggregates announced from the LACNIC address blocks: 48839
LACNIC Region origin ASes present in the Internet Routing Table: 11207
LACNIC Prefixes per ASN: 10.77
LACNIC Region origin ASes announcing only one prefix: 2665
LACNIC Region transit ASes present in the Internet Routing Table: 2513
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 56
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9155
Number of LACNIC addresses announced to Internet: 173796352
Equivalent to 10 /8s, 91 /16s and 236 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + 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: 34967
Total AfriNIC prefixes after maximum aggregation: 6843
AfriNIC Deaggregation factor: 5.11
Prefixes being announced from the AfriNIC address blocks: 48097
Unique aggregates announced from the AfriNIC address blocks: 15298
AfriNIC Region origin ASes present in the Internet Routing Table: 1913
AfriNIC Prefixes per ASN: 25.14
AfriNIC Region origin ASes announcing only one prefix: 697
AfriNIC Region transit ASes present in the Internet Routing Table: 385
Average AfriNIC Region AS path length visible: 6.0
Max AfriNIC Region AS path length visible: 65
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1274
Number of AfriNIC addresses announced to Internet: 104544256
Equivalent to 6 /8s, 59 /16s and 56 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 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 10332 8754 93 CHINAMOBILE-CN China Mobile Communication
7545 6209 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4854 4192 77 ERX-CERNET-BKB China Education and Resear
9498 4246 530 277 BBIL-AP BHARTI Airtel Ltd., IN
7552 3921 1332 26 VIETEL-AS-AP Viettel Group, VN
7713 3674 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3283 1869 103 VNPT-AS-VN VNPT Corp, VN
24560 2845 851 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
4766 2354 11522 607 KIXS-AS-KR Korea Telecom, KR
45090 2207 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer
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 12956 39641 3935 AMAZON-02, US
11492 4671 310 587 CABLEONE, US
7155 4175 286 83 VIASAT-SP-BACKBONE, US
6327 3622 1320 81 SHAW, CA
174 3411 8768 961 COGENT-174, US
22773 3378 3033 180 ASN-CXA-ALL-CCI-22773-RDC, US
749 3259 54879 2506 DNIC-AS-00749, US
16625 2996 1270 2196 AKAMAI-AS, US
396982 2937 3660 454 GOOGLE-CLOUD-PLATFORM, US
30036 2559 353 399 MEDIACOM-ENTERPRISE-BUSINESS, 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 7769 1714 145 UNI2-AS, ES
39891 4797 293 62 ALJAWWALSTC-AS, SA
20940 3944 3395 130 AKAMAI-ASN1, NL
9009 3769 323 1944 M247, RO
12389 2984 2303 891 ROSTELECOM-AS, RU
34984 2368 361 580 TELLCOM-AS, TR
212238 2006 144 1480 CDNEXT, GB
13188 1606 100 34 TRIOLAN, UA
8452 1590 1852 14 TE-AS TE-AS, EG
62240 1487 98 746 CLOUVIDER Clouvider - Global ASN, GB
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 11686 3234 591 UNINET, MX
10620 3544 492 962 Telmex Colombia S.A., CO
13999 2504 539 374 Mega Cable, S.A. de C.V., MX
11830 1993 369 64 Instituto Costarricense de Electricidad y
28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR
3816 1328 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1203 371 22 Telefonica del Peru S.A.A., PE
11664 1168 278 33 Techtel LMDS Comunicaciones Interactivas
6503 1109 374 163 Axtel, S.A.B. de C.V., MX
22884 1047 82 370 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
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
24835 1683 599 30 RAYA-AS, EG
24863 1618 389 16 LINKdotNET-AS, EG
29571 1578 100 104 ORANGE-COTE-IVOIRE, CI
36992 1426 1518 286 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
36935 1022 523 45 Vodafone-, EG
20011 980 183 284 INTERNET-SOLUTIONS, ZA
37069 851 1083 15 MOBINIL, EG
6713 556 1861 35 IAM-AS, MA
36914 545 82 3 KENET-AS, KE
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
16509 12956 39641 3935 AMAZON-02, US
8151 11686 3234 591 UNINET, MX
9808 10332 8754 93 CHINAMOBILE-CN China Mobile Communication
12479 7769 1714 145 UNI2-AS, ES
7545 6209 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4854 4192 77 ERX-CERNET-BKB China Education and Resear
39891 4797 293 62 ALJAWWALSTC-AS, SA
11492 4671 310 587 CABLEONE, US
9498 4246 530 277 BBIL-AP BHARTI Airtel Ltd., IN
7155 4175 286 83 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
8151 11686 11095 UNINET, MX
9808 10332 10239 CHINAMOBILE-CN China Mobile Communications Grou
12479 7769 7624 UNI2-AS, ES
7545 6209 5553 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4854 4777 ERX-CERNET-BKB China Education and Research Net
39891 4797 4735 ALJAWWALSTC-AS, SA
7155 4175 4092 VIASAT-SP-BACKBONE, US
11492 4671 4084 CABLEONE, US
9498 4246 3969 BBIL-AP BHARTI Airtel Ltd., IN
7552 3921 3895 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
100467 UNALLOCATED 5.59.222.0/24 200467 SHARENKOV, UA
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US
12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US
393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US
396894 UNALLOCATED 8.28.201.0/24 46887 CROWNCASTLE-AS46887, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, 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
14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US
14.192.20.0/22 Transit: 6939 HURRICANE, US
23.140.216.0/24 Origin: 27176 DATAWAGON, US
23.140.216.0/24 Transit: 20278 NEXEON, US
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US
23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, US
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 /9:16 /10:42 /11:92 /12:304
/13:584 /14:1216 /15:2147 /16:13976 /17:8362 /18:13800
/19:24792 /20:44662 /21:52313 /22:112490 /23:101386 /24:600375
/25:692 /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 6710 7769 UNI2-AS, ES
8151 5925 11686 UNINET, MX
11492 3527 4671 CABLEONE, US
39891 3489 4797 ALJAWWALSTC-AS, SA
6327 3417 3622 SHAW, CA
7155 3121 4175 VIASAT-SP-BACKBONE, US
22773 2517 3378 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2334 12956 AMAZON-02, US
30036 2219 2559 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2184 3544 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1670 2:1513 3:584 4:10 5:4529 6:167
7:6 8:1556 9:1 11:172 12:1377 13:347
14:2553 15:350 16:279 17:364 18:926 20:460
21:4 22:188 23:7314 24:2745 25:2 27:2671
29:19 31:3187 32:38 34:79 35:203 36:2420
37:4617 38:8745 39:897 40:154 41:4215 42:953
43:2522 44:355 45:18393 46:4983 47:290 49:1987
50:1891 51:590 52:1565 54:302 55:863 56:9
57:242 58:2152 59:1284 60:1166 61:2792 62:2916
63:1830 64:5496 65:2168 66:4622 67:3019 68:1121
69:3952 70:1097 71:606 72:2860 74:2782 75:1650
76:614 77:2684 78:1862 79:1715 80:2207 81:2008
82:2715 83:1400 84:1816 85:3360 86:1029 87:2407
88:1280 89:4318 90:780 91:8327 92:2792 93:2892
94:3911 95:4270 96:1410 97:318 98:970 99:739
100:71 101:1163 102:3655 103:32240 104:4809 105:741
106:998 107:2588 108:1220 109:4111 110:2231 111:3337
112:2046 113:1524 114:1944 115:2099 116:2044 117:2754
118:2425 119:1925 120:1897 121:1418 122:2773 123:2173
124:1616 125:2900 126:92 128:1559 129:968 130:1279
131:1859 132:784 133:451 134:1531 135:329 136:1267
137:1157 138:2887 139:1589 140:1557 141:1466 142:1826
143:1633 144:1066 145:474 146:2155 147:2075 148:2585
149:2864 150:1242 151:1947 152:2105 153:504 154:7890
155:1612 156:3311 157:1899 158:1272 159:2430 160:3547
161:1921 162:3673 163:1864 164:1700 165:2193 166:1389
167:1875 168:4059 169:789 170:5077 171:1001 172:4444
173:3229 174:914 175:1263 176:3657 177:4794 178:3778
179:2247 180:2575 181:4011 182:3372 183:1828 184:2298
185:21471 186:5094 187:4352 188:4213 189:4167 190:9655
191:1531 192:11165 193:9403 194:7748 195:5522 196:3235
197:3653 198:6199 199:8384 200:8177 201:6302 202:10584
203:10521 204:4539 205:3657 206:4581 207:3565 208:4175
209:5219 210:4806 211:2634 212:4517 213:3744 214:1060
215:42 216:6581 217:3103 218:1386 219:538 220:2104
221:1052 222:849 223:2338
End of report
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