[cmNOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri May 9 18:02:16 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 10 May, 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: 982066
Prefixes after maximum aggregation (per Origin AS): 378726
Deaggregation factor: 2.59
Unique aggregates announced (without unneeded subnets): 479412
Number of IPv4 prefixes with a valid ROA: 538896
Number of IPv4 prefixes with an invalid ROA: 1362
Number of IPv4 prefixes with no ROA: 441808
Total ASes present in the Internet Routing Table: 76897
Prefixes per ASN: 12.77
Origin-only ASes present in the Internet Routing Table: 65806
Origin ASes announcing only one prefix: 26969
Transit ASes present in the Internet Routing Table: 11091
Transit-only ASes present in the Internet Routing Table: 550
Average AS path length visible in the Internet Routing Table: 5.2
Max AS path length visible: 80
Max AS path prepend of ASN ( 37447) 75
Prefixes from unregistered ASNs in the Routing Table: 987
Number of instances of unregistered ASNs: 992
Number of 32-bit ASNs allocated by the RIRs: 46388
Number of 32-bit ASNs visible in the Routing Table: 38254
Prefixes from 32-bit ASNs in the Routing Table: 202312
Number of bogon 32-bit ASNs visible in the Routing Table: 40
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 467
Number of addresses announced to Internet: 3111055488
Equivalent to 185 /8s, 110 /16s and 240 /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: 321764
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 258259
Total APNIC prefixes after maximum aggregation: 77595
APNIC Deaggregation factor: 3.33
Prefixes being announced from the APNIC address blocks: 249485
Unique aggregates announced from the APNIC address blocks: 103255
APNIC Region origin ASes present in the Internet Routing Table: 14656
APNIC Prefixes per ASN: 17.02
APNIC Region origin ASes announcing only one prefix: 4480
APNIC Region transit ASes present in the Internet Routing Table: 1966
Average APNIC Region AS path length visible: 5.5
Max APNIC Region AS path length visible: 36
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10147
Number of APNIC addresses announced to Internet: 749234432
Equivalent to 44 /8s, 168 /16s and 105 /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: 289703
Total ARIN prefixes after maximum aggregation: 130388
ARIN Deaggregation factor: 2.22
Prefixes being announced from the ARIN address blocks: 290964
Unique aggregates announced from the ARIN address blocks: 138656
ARIN Region origin ASes present in the Internet Routing Table: 19258
ARIN Prefixes per ASN: 15.11
ARIN Region origin ASes announcing only one prefix: 7035
ARIN Region transit ASes present in the Internet Routing Table: 2006
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: 5209
Number of ARIN addresses announced to Internet: 1353277440
Equivalent to 80 /8s, 169 /16s and 96 /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: 273869
Total RIPE prefixes after maximum aggregation: 133924
RIPE Deaggregation factor: 2.04
Prefixes being announced from the RIPE address blocks: 271636
Unique aggregates announced from the RIPE address blocks: 174312
RIPE Region origin ASes present in the Internet Routing Table: 28918
RIPE Prefixes per ASN: 9.39
RIPE Region origin ASes announcing only one prefix: 12056
RIPE Region transit ASes present in the Internet Routing Table: 4009
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 44
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12427
Number of RIPE addresses announced to Internet: 731501952
Equivalent to 43 /8s, 153 /16s and 213 /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: 123969
Total LACNIC prefixes after maximum aggregation: 29442
LACNIC Deaggregation factor: 4.21
Prefixes being announced from the LACNIC address blocks: 120344
Unique aggregates announced from the LACNIC address blocks: 48846
LACNIC Region origin ASes present in the Internet Routing Table: 11242
LACNIC Prefixes per ASN: 10.70
LACNIC Region origin ASes announcing only one prefix: 2702
LACNIC Region transit ASes present in the Internet Routing Table: 2524
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: 9194
Number of LACNIC addresses announced to Internet: 171795712
Equivalent to 10 /8s, 61 /16s and 101 /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: 35279
Total AfriNIC prefixes after maximum aggregation: 6768
AfriNIC Deaggregation factor: 5.21
Prefixes being announced from the AfriNIC address blocks: 49170
Unique aggregates announced from the AfriNIC address blocks: 13955
AfriNIC Region origin ASes present in the Internet Routing Table: 1911
AfriNIC Prefixes per ASN: 25.73
AfriNIC Region origin ASes announcing only one prefix: 696
AfriNIC Region transit ASes present in the Internet Routing Table: 378
Average AfriNIC Region AS path length visible: 6.0
Max AfriNIC Region AS path length visible: 80
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1277
Number of AfriNIC addresses announced to Internet: 105022208
Equivalent to 6 /8s, 66 /16s and 131 /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 10803 8757 101 CHINAMOBILE-CN China Mobile Communication
7545 6161 842 653 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4773 4192 76 ERX-CERNET-BKB China Education and Resear
9498 4368 534 301 BBIL-AP BHARTI Airtel Ltd., IN
7552 3905 1332 26 VIETEL-AS-AP Viettel Group, VN
7713 3693 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3277 1869 102 VNPT-AS-VN VNPT Corp, VN
24560 2867 852 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
4766 2411 11524 646 KIXS-AS-KR Korea Telecom, KR
45090 2208 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 13300 40822 4722 AMAZON-02, US
11492 4725 313 592 CABLEONE, US
7155 3859 286 85 VIASAT-SP-BACKBONE, US
6327 3622 1320 81 SHAW, CA
174 3503 8749 891 COGENT-174, US
22773 3344 3031 166 ASN-CXA-ALL-CCI-22773-RDC, US
749 3253 54861 2504 DNIC-AS-00749, US
396982 3164 3852 416 GOOGLE-CLOUD-PLATFORM, US
16625 3019 1260 2221 AKAMAI-AS, US
36352 2777 228 852 AS-COLOCROSSING, 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 7696 1714 148 UNI2-AS, ES
39891 4797 293 62 ALJAWWALSTC-AS, SA
20940 3954 3395 127 AKAMAI-ASN1, NL
9009 3802 328 1991 M247, RO
12389 3075 2303 886 ROSTELECOM-AS PJSC Rostelecom. Technical
34984 2362 360 584 TELLCOM-AS, TR
212238 2138 151 1579 CDNEXT, GB
8452 1647 1852 14 TE-AS TE-AS, EG
13188 1606 100 34 TRIOLAN, UA
8551 1428 366 39 BEZEQ-INTERNATIONAL-AS Bezeqint Internet
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 12069 3247 582 UNINET, MX
10620 3533 486 993 Telmex Colombia S.A., CO
13999 2511 540 362 Mega Cable, S.A. de C.V., MX
11830 1995 369 64 Instituto Costarricense de Electricidad y
28573 1358 2438 262 Claro NXT Telecomunicacoes Ltda, BR
3816 1337 784 209 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
11664 1198 278 33 Techtel LMDS Comunicaciones Interactivas
6147 1191 371 22 Telefonica del Peru S.A.A., PE
22884 1051 67 376 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
6503 1042 374 163 Axtel, S.A.B. de C.V., MX
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 1744 631 30 RAYA-AS, EG
24863 1651 389 16 LINKdotNET-AS, EG
29571 1598 103 23 ORANGE-COTE-IVOIRE, CI
36992 1431 1518 283 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
36935 1036 523 45 Vodafone-, EG
20011 980 185 285 INTERNET-SOLUTIONS, ZA
37069 932 1099 15 MOBINIL, EG
36914 553 82 3 KENET-AS, KE
15399 539 57 59 WANANCHI-, 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 13300 40822 4722 AMAZON-02, US
8151 12069 3247 582 UNINET, MX
9808 10803 8757 101 CHINAMOBILE-CN China Mobile Communication
12479 7696 1714 148 UNI2-AS, ES
7545 6161 842 653 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4797 293 62 ALJAWWALSTC-AS, SA
4538 4773 4192 76 ERX-CERNET-BKB China Education and Resear
11492 4725 313 592 CABLEONE, US
9498 4368 534 301 BBIL-AP BHARTI Airtel Ltd., IN
20940 3954 3395 127 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
8151 12069 11487 UNINET, MX
9808 10803 10702 CHINAMOBILE-CN China Mobile Communications Grou
12479 7696 7548 UNI2-AS, ES
7545 6161 5508 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4797 4735 ALJAWWALSTC-AS, SA
4538 4773 4697 ERX-CERNET-BKB China Education and Research Net
11492 4725 4133 CABLEONE, US
9498 4368 4067 BBIL-AP BHARTI Airtel Ltd., IN
7552 3905 3879 VIETEL-AS-AP Viettel Group, VN
20940 3954 3827 AKAMAI-ASN1, NL
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
578888 UNALLOCATED 5.59.160.0/21 57888 TELESAT-AS, HR
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 /10:41 /11:93 /12:300
/13:581 /14:1214 /15:2146 /16:13997 /17:8330 /18:13781
/19:24815 /20:44487 /21:52077 /22:112210 /23:101805 /24:605356
/25:801 /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 6617 7696 UNI2-AS, ES
8151 6265 12069 UNINET, MX
11492 3533 4725 CABLEONE, US
39891 3489 4797 ALJAWWALSTC-AS, SA
6327 3417 3622 SHAW, CA
7155 2818 3859 VIASAT-SP-BACKBONE, US
22773 2496 3344 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2312 13300 AMAZON-02, US
30036 2219 2559 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2199 3533 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1710 2:1508 3:700 4:10 5:4647 6:162
7:6 8:1609 9:1 11:172 12:1366 13:378
14:2538 15:353 16:283 17:374 18:917 20:518
21:4 22:188 23:7504 24:2752 25:2 27:2694
29:19 31:3242 32:40 33:1 34:83 35:206
36:2772 37:4644 38:9137 39:909 40:167 41:4182
42:945 43:2558 44:376 45:18606 46:5041 47:298
49:1927 50:1893 51:591 52:1556 54:306 55:1095
56:11 57:256 58:2126 59:1362 60:1164 61:2784
62:2919 63:1813 64:5459 65:2155 66:4653 67:3061
68:1123 69:3842 70:1086 71:633 72:2853 74:2778
75:1608 76:620 77:2735 78:1871 79:1757 80:2215
81:2044 82:3154 83:1432 84:1854 85:3438 86:1053
87:2404 88:1286 89:4364 90:774 91:8345 92:2713
93:2887 94:4039 95:4326 96:1419 97:316 98:980
99:675 100:72 101:1180 102:3905 103:32220 104:4826
105:753 106:1034 107:2622 108:1226 109:4088 110:2234
111:3373 112:2062 113:1526 114:1974 115:2142 116:2048
117:2613 118:2360 119:1922 120:1909 121:1424 122:2765
123:2173 124:1620 125:2876 126:91 128:1582 129:960
130:1300 131:1947 132:780 133:451 134:1531 135:331
136:1305 137:1167 138:2885 139:1627 140:1586 141:1509
142:1903 143:1718 144:1108 145:503 146:2164 147:2098
148:2644 149:2872 150:1247 151:1849 152:2086 153:497
154:8136 155:1690 156:3378 157:1896 158:1305 159:2448
160:3560 161:1881 162:3727 163:2129 164:1704 165:2202
166:1477 167:1905 168:4037 169:792 170:5070 171:1008
172:4405 173:3262 174:910 175:1299 176:3670 177:4704
178:3627 179:2274 180:2620 181:4071 182:3423 183:1845
184:2063 185:21565 186:5083 187:4468 188:4221 189:4264
190:9602 191:1492 192:11252 193:9485 194:7766 195:5525
196:3284 197:3721 198:6227 199:8506 200:8197 201:6281
202:10463 203:10547 204:4545 205:3638 206:4645 207:3571
208:4254 209:5213 210:4834 211:2637 212:4541 213:3703
214:1031 215:48 216:6709 217:3122 218:1395 219:539
220:2088 221:1077 222:847 223:2387
End of report
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