[REN-BGP-stats-all] IPv4 R&E Routing Table Report - PREGINET (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Tue Jul 15 20:31:50 UTC 2025
IPv4 R&E Routing Table Report 20:30 GMT Tue 15 Jul, 2025
IPv4 BGP Table (R&E) as seen at PREGINET.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/PREGINET/
Analysis Summary
----------------
BGP routing table entries examined: 158998
Prefixes after maximum aggregation (per Origin AS): 62527
Deaggregation factor: 2.54
Unique aggregates announced (without unneeded subnets): 89706
Number of IPv4 prefixes with a valid ROA: 87484
Number of IPv4 prefixes with an invalid ROA: 64
Number of IPv4 prefixes with no ROA: 71450
Total ASes present in the Internet Routing Table: 14471
Prefixes per ASN: 10.99
Origin-only ASes present in the Internet Routing Table: 12189
Origin ASes announcing only one prefix: 5910
Transit ASes present in the Internet Routing Table: 2282
Transit-only ASes present in the Internet Routing Table: 534
Paths with bogon ASNs present in the IPv4 Routing Table: 1
Average AS path length visible in the Internet Routing Table: 6.7
Max AS path length visible: 53
Max AS path prepend of ASN (212940) 45
Prefixes from unregistered ASNs in the Routing Table: 76
Number of instances of unregistered ASNs: 76
Number of 32-bit ASNs allocated by the RIRs: 46832
Number of 32-bit ASNs visible in the Routing Table: 7170
Prefixes from 32-bit ASNs in the Routing Table: 29346
Number of bogon 32-bit ASNs visible in the Routing Table: 2
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 28
Number of addresses announced to Internet: 492701952
Equivalent to 29 /8s, 94 /16s and 9 /24s
Percentage of available address space announced: 13.3
Percentage of allocated address space announced: 13.3
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: 40501
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 76627
Total APNIC prefixes after maximum aggregation: 23346
APNIC Deaggregation factor: 3.28
Prefixes being announced from the APNIC address blocks: 74825
Unique aggregates announced from the APNIC address blocks: 34253
APNIC Region origin ASes present in the Internet Routing Table: 4668
APNIC Prefixes per ASN: 16.03
APNIC Region origin ASes announcing only one prefix: 1735
APNIC Region transit ASes present in the Internet Routing Table: 719
Average APNIC Region AS path length visible: 7.5
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 3028
Number of APNIC addresses announced to Internet: 181521920
Equivalent to 10 /8s, 209 /16s and 206 /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: 26484
Total ARIN prefixes after maximum aggregation: 14367
ARIN Deaggregation factor: 1.84
Prefixes being announced from the ARIN address blocks: 26074
Unique aggregates announced from the ARIN address blocks: 20382
ARIN Region origin ASes present in the Internet Routing Table: 2085
ARIN Prefixes per ASN: 12.51
ARIN Region origin ASes announcing only one prefix: 993
ARIN Region transit ASes present in the Internet Routing Table: 216
Average ARIN Region AS path length visible: 5.1
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 476
Number of ARIN addresses announced to Internet: 161594368
Equivalent to 9 /8s, 161 /16s and 188 /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: 41708
Total RIPE prefixes after maximum aggregation: 19633
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 42606
Unique aggregates announced from the RIPE address blocks: 26907
RIPE Region origin ASes present in the Internet Routing Table: 4795
RIPE Prefixes per ASN: 8.89
RIPE Region origin ASes announcing only one prefix: 2204
RIPE Region transit ASes present in the Internet Routing Table: 700
Average RIPE Region AS path length visible: 6.2
Max RIPE Region AS path length visible: 50
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1715
Number of RIPE addresses announced to Internet: 126033408
Equivalent to 7 /8s, 131 /16s and 30 /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: 12543
Total LACNIC prefixes after maximum aggregation: 4553
LACNIC Deaggregation factor: 2.75
Prefixes being announced from the LACNIC address blocks: 12235
Unique aggregates announced from the LACNIC address blocks: 6009
LACNIC Region origin ASes present in the Internet Routing Table: 2269
LACNIC Prefixes per ASN: 5.39
LACNIC Region origin ASes announcing only one prefix: 938
LACNIC Region transit ASes present in the Internet Routing Table: 505
Average LACNIC Region AS path length visible: 7.3
Max LACNIC Region AS path length visible: 27
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1903
Number of LACNIC addresses announced to Internet: 18173952
Equivalent to 1 /8s, 21 /16s and 80 /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: 1560
Total AfriNIC prefixes after maximum aggregation: 572
AfriNIC Deaggregation factor: 2.73
Prefixes being announced from the AfriNIC address blocks: 3230
Unique aggregates announced from the AfriNIC address blocks: 2128
AfriNIC Region origin ASes present in the Internet Routing Table: 97
AfriNIC Prefixes per ASN: 33.30
AfriNIC Region origin ASes announcing only one prefix: 40
AfriNIC Region transit ASes present in the Internet Routing Table: 24
Average AfriNIC Region AS path length visible: 6.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 48
Number of AfriNIC addresses announced to Internet: 5360384
Equivalent to 0 /8s, 81 /16s and 203 /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 11632 8761 117 CHINAMOBILE-CN China Mobile Communication
9498 4307 502 304 BBIL-AP BHARTI Airtel Ltd., IN
24560 2902 862 519 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
56046 2597 812 179 CMNET-JIANGSU-AP China Mobile communicati
4766 1952 6031 919 KIXS-AS-KR Korea Telecom, KR
45609 1879 829 330 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd.
56041 1615 725 74 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1501 192 50 CMNET-HUNAN-AP China Mobile communication
9919 971 170 64 NCIC-TW New Century InfoComm Tech Co., Lt
24547 871 176 59 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
30036 2452 339 618 MEDIACOM-ENTERPRISE-BUSINESS, US
16509 2310 3753 1336 AMAZON-02, US
20115 2246 3099 511 CHARTER-20115, US
11492 1961 136 1060 CABLEONE, US
714 1250 4391 8 APPLE-ENGINEERING, US
8075 783 16022 659 MICROSOFT-CORP-MSN-AS-BLOCK, US
10796 639 1882 301 TWC-10796-MIDWEST, US
12083 555 192 88 WOW-INTERNET, US
2152 428 48 268 CENIC-2152, US
33363 380 1424 212 BHN-33363, US
Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 4180 255 53 ALJAWWALSTC-AS, SA
12389 2982 2203 951 ROSTELECOM-AS PJSC Rostelecom. Technical
49505 956 100 407 SELECTEL, RU
25019 887 609 377 SAUDINETSTC-AS, SA
9123 678 42 306 TIMEWEB-AS, RU
50010 612 76 11 NAWRAS-AS Sultanate of Oman, OM
9198 520 208 188 KAZTELECOM-AS, KZ
9155 429 37 9 QNET Kuwait, KW
21299 427 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan
50340 379 39 241 SELECTEL-MSK, RU
Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 2162 675 309 UNINET, MX
8167 342 1089 44 V tal, BR
7738 297 939 71 V tal, BR
1916 240 177 41 Rede Nacional de Ensino e Pesquisa, BR
28201 219 16 28 Companhia Itabirana Telecomunicacoes Ltda
28391 159 10 71 Universidad Juarez Autonoma de Tabasco, M
271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
11014 123 10 26 CPS, AR
11340 109 9 52 Red Universitaria Nacional, CL
19089 107 18 45 Scala Data Centers, BR
Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 565 57 202 KENET-AS, KE
2018 375 318 69 TENET-1, ZA
15399 76 7 28 WANANCHI-, KE
30999 74 25 32 EMTEL-AS-AP, MU
23889 55 37 31 MauritiusTelecom, MU
10798 54 3 36 SBICSA, ZA
8094 47 48 18 PUKNET, ZA
37215 37 8 1 MAREN, MW
328543 24 9 5 sun-asn, SC
327885 18 4 3 Viettel-Tanzania, TZ
Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
9808 11632 8761 117 CHINAMOBILE-CN China Mobile Communication
9498 4307 502 304 BBIL-AP BHARTI Airtel Ltd., IN
39891 4180 255 53 ALJAWWALSTC-AS, SA
12389 2982 2203 951 ROSTELECOM-AS PJSC Rostelecom. Technical
24560 2902 862 519 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
56046 2597 812 179 CMNET-JIANGSU-AP China Mobile communicati
30036 2452 339 618 MEDIACOM-ENTERPRISE-BUSINESS, US
16509 2310 3753 1336 AMAZON-02, US
20115 2246 3099 511 CHARTER-20115, US
8151 2162 675 309 UNINET, MX
Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
39891 4180 4127 ALJAWWALSTC-AS, SA
9498 4307 4003 BBIL-AP BHARTI Airtel Ltd., IN
56046 2597 2418 CMNET-JIANGSU-AP China Mobile communications co
24560 2902 2383 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem
12389 2982 2031 ROSTELECOM-AS PJSC Rostelecom. Technical Team,
8151 2162 1853 UNINET, MX
30036 2452 1834 MEDIACOM-ENTERPRISE-BUSINESS, US
20115 2246 1735 CHARTER-20115, US
45609 1879 1549 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for
56041 1615 1541 CMNET-ZHEJIANG-AP China Mobile communications c
Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI
46123 UNALLOCATED 24.73.234.0/24 33363 BHN-33363, US
53771 UNALLOCATED 24.172.253.0/24 11426 TWC-11426-CAROLINAS, US
53657 UNALLOCATED 24.213.247.0/24 11351 TWC-11351-NORTHEAST, US
11835 UNALLOCATED 45.4.236.0/22 14868 Ligga Telecomunicacoes
268652 UNALLOCATED 45.165.20.0/22 264493 UNASSIGNED
40186 UNALLOCATED 64.135.35.0/24 13335 CLOUDFLARENET, US
396324 UNALLOCATED 66.57.112.0/24 11426 TWC-11426-CAROLINAS, US
26345 UNALLOCATED 71.13.182.0/24 20115 CHARTER-20115, US
46123 UNALLOCATED 71.46.221.0/24 33363 BHN-33363, US
Complete listing at https://bgp.nsrc.org/REN/PREGINET/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://bgp.nsrc.org/REN/PREGINET/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
103.5.136.0/22 Origin: 4686 BEKKOAME BEKKOAME INTERNET INC., JP
103.5.136.0/22 Transit: 10013 FBDC FreeBit Co.,Ltd., JP
103.6.224.0/22 Origin: 4686 BEKKOAME BEKKOAME INTERNET INC., JP
103.6.224.0/22 Transit: 10013 FBDC FreeBit Co.,Ltd., JP
103.8.106.0/24 Origin: 135391 AOFEI-HK AOFEI DATA INTERNATIONAL COMPAN
103.8.106.0/24 Transit: 55888 NINTATSU Nintatsu Global Telecommunicati
103.83.18.0/24 Origin: 133457 SSB-AS-AP ScopeTel Sdn Bhd, MY
103.83.18.0/24 Transit: 136400 ACG-AFG-AS-AP Asia Consultancy Group, AF
103.96.76.0/24 Origin: 132238 AHSL-AS-AP Array Health, NZ
103.96.76.0/24 Transit: 17981 CAMBOTECH-KH-AS Cambo TechnologyISP Co.,
Complete listing at https://bgp.nsrc.org/REN/PREGINET/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 /8:1 /9:2 /10:13 /11:13 /12:46
/13:80 /14:148 /15:384 /16:2323 /17:1289 /18:2622
/19:4475 /20:7724 /21:9254 /22:17110 /23:16302 /24:97212
/25:0 /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
39891 3321 4180 ALJAWWALSTC-AS, SA
30036 2135 2452 MEDIACOM-ENTERPRISE-BUSINESS, US
12389 1897 2982 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU
11492 1351 1961 CABLEONE, US
8151 1231 2162 UNINET, MX
49505 669 956 SELECTEL, RU
9123 552 678 TIMEWEB-AS, RU
20115 550 2246 CHARTER-20115, US
36914 545 565 KENET-AS, KE
50010 510 612 NAWRAS-AS Sultanate of Oman, OM
Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:141 2:318 3:108 5:1137 8:81 12:73
13:95 14:375 15:59 16:62 17:335 18:75
23:794 24:591 25:2 27:474 31:566 32:2
34:3 35:51 36:2428 37:649 38:529 39:679
40:1 41:253 42:105 43:641 44:18 45:2348
46:796 47:60 49:206 50:339 51:136 52:256
54:62 57:27 58:251 59:467 60:106 61:777
62:587 63:128 64:368 65:179 66:338 67:295
68:72 69:261 70:36 71:77 72:225 74:219
75:66 76:62 77:510 78:480 79:259 80:244
81:344 82:410 83:194 84:204 85:487 86:128
87:330 88:109 89:485 90:121 91:1376 92:464
93:951 94:846 95:1546 96:273 97:146 98:74
99:45 101:470 102:104 103:7545 104:365 105:9
106:297 107:104 108:176 109:563 110:239 111:2158
112:1055 113:268 114:745 115:277 116:343 117:1236
118:308 119:227 120:1486 121:384 122:1716 123:390
124:320 125:1564 126:5 128:375 129:72 130:111
131:211 132:74 133:303 134:103 135:23 136:77
137:172 138:328 139:120 140:327 141:151 142:80
143:147 144:131 145:138 146:340 147:227 148:346
149:164 150:232 151:551 152:454 153:37 154:853
155:190 156:498 157:254 158:120 159:386 160:642
161:145 162:279 163:323 164:160 165:222 166:58
167:160 168:579 169:68 170:462 171:55 172:239
173:1002 174:125 175:577 176:737 177:522 178:719
179:172 180:406 181:151 182:1674 183:1205 184:140
185:2406 186:231 187:600 188:776 189:310 190:444
191:98 192:1776 193:1129 194:921 195:778 196:326
197:387 198:731 199:475 200:799 201:550 202:2394
203:1912 204:269 205:268 206:317 207:324 208:234
209:313 210:1366 211:1181 212:798 213:544 216:356
217:586 218:813 219:64 220:550 221:500 222:130
223:1370
End of report
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