[REN-BGP-stats-all] IPv4 R&E Routing Table Report - PREGINET (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sat Apr 5 20:31:58 UTC 2025
IPv4 R&E Routing Table Report 20:30 GMT Sat 05 Apr, 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: 157852
Prefixes after maximum aggregation (per Origin AS): 63875
Deaggregation factor: 2.47
Unique aggregates announced (without unneeded subnets): 90788
Number of IPv4 prefixes with a valid ROA: 85911
Number of IPv4 prefixes with an invalid ROA: 60
Number of IPv4 prefixes with no ROA: 71881
Total ASes present in the Internet Routing Table: 14717
Prefixes per ASN: 10.73
Origin-only ASes present in the Internet Routing Table: 12452
Origin ASes announcing only one prefix: 5957
Transit ASes present in the Internet Routing Table: 2265
Transit-only ASes present in the Internet Routing Table: 512
Paths with bogon ASNs present in the IPv4 Routing Table: 4
Average AS path length visible in the Internet Routing Table: 6.7
Max AS path length visible: 45
Max AS path prepend of ASN (212940) 40
Prefixes from unregistered ASNs in the Routing Table: 82
Number of instances of unregistered ASNs: 85
Number of 32-bit ASNs allocated by the RIRs: 46163
Number of 32-bit ASNs visible in the Routing Table: 7274
Prefixes from 32-bit ASNs in the Routing Table: 29845
Number of bogon 32-bit ASNs visible in the Routing Table: 8
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 53
Number of addresses announced to Internet: 508882432
Equivalent to 30 /8s, 84 /16s and 238 /24s
Percentage of available address space announced: 13.7
Percentage of allocated address space announced: 13.7
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: 38705
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 77259
Total APNIC prefixes after maximum aggregation: 25553
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 75489
Unique aggregates announced from the APNIC address blocks: 37021
APNIC Region origin ASes present in the Internet Routing Table: 5056
APNIC Prefixes per ASN: 14.93
APNIC Region origin ASes announcing only one prefix: 1875
APNIC Region transit ASes present in the Internet Routing Table: 738
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 36
Number of APNIC region 32-bit ASNs visible in the Routing Table: 3257
Number of APNIC addresses announced to Internet: 189217024
Equivalent to 11 /8s, 71 /16s and 57 /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: 27155
Total ARIN prefixes after maximum aggregation: 14849
ARIN Deaggregation factor: 1.83
Prefixes being announced from the ARIN address blocks: 26776
Unique aggregates announced from the ARIN address blocks: 20733
ARIN Region origin ASes present in the Internet Routing Table: 2158
ARIN Prefixes per ASN: 12.41
ARIN Region origin ASes announcing only one prefix: 1014
ARIN Region transit ASes present in the Internet Routing Table: 227
Average ARIN Region AS path length visible: 5.2
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: 171359744
Equivalent to 10 /8s, 54 /16s and 190 /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: 39523
Total RIPE prefixes after maximum aggregation: 18748
RIPE Deaggregation factor: 2.11
Prefixes being announced from the RIPE address blocks: 40324
Unique aggregates announced from the RIPE address blocks: 25455
RIPE Region origin ASes present in the Internet Routing Table: 4680
RIPE Prefixes per ASN: 8.62
RIPE Region origin ASes announcing only one prefix: 2145
RIPE Region transit ASes present in the Internet Routing Table: 691
Average RIPE Region AS path length visible: 6.2
Max RIPE Region AS path length visible: 45
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1639
Number of RIPE addresses announced to Internet: 124590848
Equivalent to 7 /8s, 109 /16s and 27 /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: 12204
Total LACNIC prefixes after maximum aggregation: 4277
LACNIC Deaggregation factor: 2.85
Prefixes being announced from the LACNIC address blocks: 11688
Unique aggregates announced from the LACNIC address blocks: 5664
LACNIC Region origin ASes present in the Internet Routing Table: 2160
LACNIC Prefixes per ASN: 5.41
LACNIC Region origin ASes announcing only one prefix: 873
LACNIC Region transit ASes present in the Internet Routing Table: 468
Average LACNIC Region AS path length visible: 7.6
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1829
Number of LACNIC addresses announced to Internet: 18139136
Equivalent to 1 /8s, 20 /16s and 200 /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: 1629
Total AfriNIC prefixes after maximum aggregation: 389
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 3522
Unique aggregates announced from the AfriNIC address blocks: 1880
AfriNIC Region origin ASes present in the Internet Routing Table: 128
AfriNIC Prefixes per ASN: 27.52
AfriNIC Region origin ASes announcing only one prefix: 50
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 7.7
Max AfriNIC Region AS path length visible: 40
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 73
Number of AfriNIC addresses announced to Internet: 5543680
Equivalent to 0 /8s, 84 /16s and 151 /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 10133 8753 88 CHINAMOBILE-CN China Mobile Communication
9498 4157 497 265 BBIL-AP BHARTI Airtel Ltd., IN
24560 2847 849 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
4766 2017 6035 941 KIXS-AS-KR Korea Telecom, KR
45609 1837 824 321 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd.
7552 1763 689 528 VIETEL-AS-AP Viettel Group, VN
56046 1592 812 181 CMNET-JIANGSU-AP China Mobile communicati
56041 1547 725 74 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1480 192 53 CMNET-HUNAN-AP China Mobile communication
9919 967 170 64 NCIC-TW New Century InfoComm Tech Co., Lt
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 2390 332 694 MEDIACOM-ENTERPRISE-BUSINESS, US
20115 2224 3077 514 CHARTER-20115, US
16509 2198 3547 1258 AMAZON-02, US
11492 1881 130 1028 CABLEONE, US
714 1208 4391 8 APPLE-ENGINEERING, US
8075 737 16019 622 MICROSOFT-CORP-MSN-AS-BLOCK, US
10796 640 1944 302 TWC-10796-MIDWEST, US
12083 440 191 84 WOW-INTERNET, US
2152 387 40 263 CENIC-2152, US
33363 384 1416 211 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 4179 255 52 ALJAWWALSTC-AS, SA
12389 2309 1997 789 ROSTELECOM-AS, RU
25019 914 639 321 SAUDINETSTC-AS, SA
49505 856 92 355 SELECTEL, RU
50010 665 76 11 NAWRAS-AS Sultanate of Oman, OM
9123 599 37 263 TIMEWEB-AS, RU
9155 426 37 9 QNET Kuwait, KW
42772 373 63 104 A1-BY-AS, BY
50340 347 34 227 SELECTEL-MSK, RU
209242 342 31 307 CLOUDFLARESPECTRUM Cloudflare, Inc., US
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 1891 688 247 UNINET, MX
7738 605 1807 67 V tal, BR
8167 342 1089 44 V tal, BR
1916 235 177 40 Rede Nacional de Ensino e Pesquisa, BR
28201 218 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 128 10 26 CPS, AR
11340 110 25 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 547 82 3 KENET-AS, KE
2018 372 318 69 TENET-1, ZA
36873 198 83 30 VNL1-AS, NG
23889 49 27 29 MauritiusTelecom, MU
8094 47 48 18 PUKNET, ZA
37215 34 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
15399 23 2 15 WANANCHI-, KE
37531 19 2 15 AIRTEL-NIGER, NE
327885 16 4 2 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 10133 8753 88 CHINAMOBILE-CN China Mobile Communication
39891 4179 255 52 ALJAWWALSTC-AS, SA
9498 4157 497 265 BBIL-AP BHARTI Airtel Ltd., IN
24560 2847 849 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
30036 2390 332 694 MEDIACOM-ENTERPRISE-BUSINESS, US
12389 2309 1997 789 ROSTELECOM-AS, RU
20115 2224 3077 514 CHARTER-20115, US
16509 2198 3547 1258 AMAZON-02, US
4766 2017 6035 941 KIXS-AS-KR Korea Telecom, KR
8151 1891 688 247 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 4179 4127 ALJAWWALSTC-AS, SA
9498 4157 3892 BBIL-AP BHARTI Airtel Ltd., IN
24560 2847 2311 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem
20115 2224 1710 CHARTER-20115, US
30036 2390 1696 MEDIACOM-ENTERPRISE-BUSINESS, US
8151 1891 1644 UNINET, MX
12389 2309 1520 ROSTELECOM-AS, RU
45609 1837 1516 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for
56041 1547 1473 CMNET-ZHEJIANG-AP China Mobile communications c
56047 1480 1427 CMNET-HUNAN-AP China Mobile communications corp
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
393377 UNALLOCATED 12.195.116.0/24 40264 TWC-40264-WI-MN-UPPERMI
202528 UNALLOCATED 23.143.136.0/24 153371 BACKWAVESLIMITED-AS-AP
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
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
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
23.161.8.0/24 Origin: 142433 DATAWAVE-AS-AP DATAWAVE GLOBAL LLC, CN
23.161.8.0/24 Transit: 983 AKARI-NETWORKS, US
102.219.4.0/22 Origin: 328932 RESERVED, ZZ
102.219.4.0/22 Transit: 36873 VNL1-AS, NG
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
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 /12:48
/13:80 /14:161 /15:397 /16:2525 /17:1340 /18:2795
/19:4435 /20:7553 /21:9192 /22:16937 /23:16360 /24:95999
/25:1 /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 4179 ALJAWWALSTC-AS, SA
30036 2074 2390 MEDIACOM-ENTERPRISE-BUSINESS, US
12389 1406 2309 ROSTELECOM-AS, RU
11492 1314 1881 CABLEONE, US
8151 1034 1891 UNINET, MX
49505 592 856 SELECTEL, RU
50010 552 665 NAWRAS-AS Sultanate of Oman, OM
20115 545 2224 CHARTER-20115, US
36914 523 547 KENET-AS, KE
16509 487 2198 AMAZON-02, US
Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:197 2:330 3:100 5:1072 6:4 8:61
12:82 13:87 14:383 15:58 16:63 17:312
18:72 20:28 23:719 24:497 25:2 27:594
31:527 32:2 34:3 35:38 36:1349 37:625
38:535 39:692 40:1 41:245 42:143 43:660
44:18 45:2446 46:785 47:63 49:206 50:321
51:138 52:257 54:41 57:28 58:300 59:451
60:95 61:814 62:561 63:129 64:382 65:285
66:299 67:303 68:69 69:254 70:34 71:77
72:246 74:199 75:64 76:57 77:492 78:453
79:232 80:234 81:353 82:385 83:181 84:181
85:369 86:141 87:301 88:105 89:493 90:132
91:1374 92:410 93:931 94:779 95:1453 96:264
97:145 98:71 99:47 101:465 102:122 103:8108
104:374 105:170 106:292 107:115 108:142 109:437
110:230 111:2095 112:918 113:316 114:843 115:302
116:394 117:1352 118:372 119:281 120:1227 121:416
122:1740 123:450 124:329 125:1569 126:3 128:399
129:62 130:123 131:213 132:47 133:304 134:165
135:23 136:79 137:163 138:307 139:225 140:317
141:190 142:80 143:166 144:113 145:133 146:376
147:251 148:358 149:216 150:266 151:493 152:465
153:37 154:929 155:198 156:476 157:282 158:131
159:391 160:659 161:151 162:268 163:305 164:144
165:223 166:52 167:187 168:338 169:80 170:483
171:162 172:214 173:968 174:118 175:563 176:711
177:536 178:676 179:221 180:492 181:156 182:1579
183:1056 184:140 185:2255 186:184 187:464 188:625
189:279 190:491 191:81 192:1862 193:1121 194:914
195:768 196:238 197:387 198:771 199:584 200:730
201:536 202:2468 203:2200 204:288 205:275 206:308
207:322 208:238 209:320 210:1468 211:1144 212:788
213:532 214:10 216:375 217:545 218:800 219:64
220:570 221:355 222:135 223:1053
End of report
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