[REN-BGP-stats-all] IPv4 R&E Routing Table Report - PREGINET (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Thu Jul 31 20:31:50 UTC 2025
IPv4 R&E Routing Table Report 20:30 GMT Thu 31 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: 160678
Prefixes after maximum aggregation (per Origin AS): 62092
Deaggregation factor: 2.59
Unique aggregates announced (without unneeded subnets): 89208
Number of IPv4 prefixes with a valid ROA: 87815
Number of IPv4 prefixes with an invalid ROA: 82
Number of IPv4 prefixes with no ROA: 72781
Total ASes present in the Internet Routing Table: 14385
Prefixes per ASN: 11.17
Origin-only ASes present in the Internet Routing Table: 12155
Origin ASes announcing only one prefix: 5904
Transit ASes present in the Internet Routing Table: 2230
Transit-only ASes present in the Internet Routing Table: 526
Paths with bogon ASNs present in the IPv4 Routing Table: 2
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: 81
Number of instances of unregistered ASNs: 82
Number of 32-bit ASNs allocated by the RIRs: 46997
Number of 32-bit ASNs visible in the Routing Table: 7059
Prefixes from 32-bit ASNs in the Routing Table: 28909
Number of bogon 32-bit ASNs visible in the Routing Table: 4
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 37
Number of addresses announced to Internet: 481142272
Equivalent to 28 /8s, 173 /16s and 166 /24s
Percentage of available address space announced: 13.0
Percentage of allocated address space announced: 13.0
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: 40104
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 79288
Total APNIC prefixes after maximum aggregation: 23427
APNIC Deaggregation factor: 3.38
Prefixes being announced from the APNIC address blocks: 77945
Unique aggregates announced from the APNIC address blocks: 34816
APNIC Region origin ASes present in the Internet Routing Table: 4776
APNIC Prefixes per ASN: 16.32
APNIC Region origin ASes announcing only one prefix: 1773
APNIC Region transit ASes present in the Internet Routing Table: 721
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: 3098
Number of APNIC addresses announced to Internet: 183701760
Equivalent to 10 /8s, 243 /16s and 17 /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: 26754
Total ARIN prefixes after maximum aggregation: 14441
ARIN Deaggregation factor: 1.85
Prefixes being announced from the ARIN address blocks: 25667
Unique aggregates announced from the ARIN address blocks: 20805
ARIN Region origin ASes present in the Internet Routing Table: 2144
ARIN Prefixes per ASN: 11.97
ARIN Region origin ASes announcing only one prefix: 1034
ARIN Region transit ASes present in the Internet Routing Table: 226
Average ARIN Region AS path length visible: 5.0
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 497
Number of ARIN addresses announced to Internet: 149101824
Equivalent to 8 /8s, 227 /16s and 29 /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: 41028
Total RIPE prefixes after maximum aggregation: 19472
RIPE Deaggregation factor: 2.11
Prefixes being announced from the RIPE address blocks: 42210
Unique aggregates announced from the RIPE address blocks: 26373
RIPE Region origin ASes present in the Internet Routing Table: 4755
RIPE Prefixes per ASN: 8.88
RIPE Region origin ASes announcing only one prefix: 2207
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: 50
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1707
Number of RIPE addresses announced to Internet: 125039360
Equivalent to 7 /8s, 115 /16s and 243 /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: 11893
Total LACNIC prefixes after maximum aggregation: 4287
LACNIC Deaggregation factor: 2.77
Prefixes being announced from the LACNIC address blocks: 11530
Unique aggregates announced from the LACNIC address blocks: 5635
LACNIC Region origin ASes present in the Internet Routing Table: 2053
LACNIC Prefixes per ASN: 5.62
LACNIC Region origin ASes announcing only one prefix: 846
LACNIC Region transit ASes present in the Internet Routing Table: 449
Average LACNIC Region AS path length visible: 7.1
Max LACNIC Region AS path length visible: 31
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1702
Number of LACNIC addresses announced to Internet: 17811200
Equivalent to 1 /8s, 15 /16s and 199 /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: 1634
Total AfriNIC prefixes after maximum aggregation: 407
AfriNIC Deaggregation factor: 4.01
Prefixes being announced from the AfriNIC address blocks: 3289
Unique aggregates announced from the AfriNIC address blocks: 1549
AfriNIC Region origin ASes present in the Internet Routing Table: 107
AfriNIC Prefixes per ASN: 30.74
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 30
Average AfriNIC Region AS path length visible: 6.6
Max AfriNIC Region AS path length visible: 20
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 55
Number of AfriNIC addresses announced to Internet: 5469696
Equivalent to 0 /8s, 83 /16s and 118 /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 12193 8761 117 CHINAMOBILE-CN China Mobile Communication
9498 4398 502 303 BBIL-AP BHARTI Airtel Ltd., IN
24560 2914 864 510 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
56046 2834 812 179 CMNET-JIANGSU-AP China Mobile communicati
4766 1922 6029 921 KIXS-AS-KR Korea Telecom, KR
45609 1916 836 336 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd.
56047 1661 192 50 CMNET-HUNAN-AP China Mobile communication
56041 1648 725 74 CMNET-ZHEJIANG-AP China Mobile communicat
9919 971 169 63 NCIC-TW New Century InfoComm Tech Co., Lt
24547 864 176 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 2473 343 617 MEDIACOM-ENTERPRISE-BUSINESS, US
16509 2316 3753 1346 AMAZON-02, US
20115 2243 3099 518 CHARTER-20115, US
11492 1975 137 1058 CABLEONE, US
714 1250 4391 8 APPLE-ENGINEERING, US
8075 794 16023 670 MICROSOFT-CORP-MSN-AS-BLOCK, US
10796 636 1881 298 TWC-10796-MIDWEST, US
12083 555 192 88 WOW-INTERNET, US
2152 435 49 275 CENIC-2152, US
33363 379 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 2980 2203 944 ROSTELECOM-AS PJSC Rostelecom. Technical
49505 961 101 408 SELECTEL, RU
25019 880 608 381 SAUDINETSTC-AS, SA
9123 678 42 306 TIMEWEB-AS, RU
9198 519 207 189 KAZTELECOM-AS, KZ
50010 489 72 10 NAWRAS-AS Sultanate of Oman, OM
5416 430 30 9 Internet Service Provider, BH
9155 430 37 9 QNET Kuwait, KW
21299 427 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan
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 2187 679 303 UNINET, MX
8167 342 1089 44 V tal, BR
7738 295 927 70 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
262287 149 25 125 Latitude.sh LTDA, BR
271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
11014 123 10 26 CPS, AR
11340 109 9 52 Red Universitaria Nacional, CL
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 571 82 3 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
6879 24 2 9 ENSTINET-, EG
328543 23 8 4 sun-asn, SC
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 12193 8761 117 CHINAMOBILE-CN China Mobile Communication
9498 4398 502 303 BBIL-AP BHARTI Airtel Ltd., IN
39891 4180 255 53 ALJAWWALSTC-AS, SA
12389 2980 2203 944 ROSTELECOM-AS PJSC Rostelecom. Technical
24560 2914 864 510 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
56046 2834 812 179 CMNET-JIANGSU-AP China Mobile communicati
30036 2473 343 617 MEDIACOM-ENTERPRISE-BUSINESS, US
16509 2316 3753 1346 AMAZON-02, US
20115 2243 3099 518 CHARTER-20115, US
8151 2187 679 303 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 4398 4095 BBIL-AP BHARTI Airtel Ltd., IN
56046 2834 2655 CMNET-JIANGSU-AP China Mobile communications co
24560 2914 2404 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem
12389 2980 2036 ROSTELECOM-AS PJSC Rostelecom. Technical Team,
8151 2187 1884 UNINET, MX
30036 2473 1856 MEDIACOM-ENTERPRISE-BUSINESS, US
20115 2243 1725 CHARTER-20115, US
56047 1661 1611 CMNET-HUNAN-AP China Mobile communications corp
45609 1916 1580 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for
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
134117 UNALLOCATED 45.114.100.0/24 56082 ONE-NET-HK INTERNET-SOL
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
45.114.100.0/24 Origin: 134117 UNASSIGNED
45.114.100.0/24 Transit: 56082 ONE-NET-HK INTERNET-SOLUTION-, HK
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
103.54.52.0/24 Origin: 134117 UNASSIGNED
103.54.52.0/24 Transit: 56082 ONE-NET-HK INTERNET-SOLUTION-, HK
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 /10:12 /11:11 /12:44
/13:77 /14:150 /15:378 /16:2350 /17:1296 /18:2651
/19:4475 /20:7791 /21:9350 /22:17045 /23:16368 /24:98677
/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 2156 2473 MEDIACOM-ENTERPRISE-BUSINESS, US
12389 1899 2980 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU
11492 1363 1975 CABLEONE, US
8151 1244 2187 UNINET, MX
49505 673 961 SELECTEL, RU
9123 552 678 TIMEWEB-AS, RU
20115 549 2243 CHARTER-20115, US
36914 547 571 KENET-AS, KE
16509 506 2316 AMAZON-02, US
Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:159 2:311 3:108 5:1120 8:75 12:77
13:93 14:396 15:59 16:62 17:332 18:75
20:28 23:652 24:594 25:2 27:514 31:569
32:2 34:3 35:54 36:2933 37:640 38:522
39:716 40:1 41:257 42:111 43:675 44:18
45:2272 46:763 47:66 49:206 50:337 51:136
52:258 54:62 57:28 58:247 59:550 60:102
61:778 62:565 63:127 64:396 65:182 66:386
67:306 68:68 69:280 70:42 71:77 72:225
74:224 75:66 76:63 77:501 78:461 79:245
80:229 81:313 82:408 83:182 84:197 85:453
86:127 87:335 88:139 89:476 90:136 91:1362
92:433 93:942 94:856 95:1520 96:264 97:145
98:72 99:45 101:491 102:104 103:7733 104:337
105:9 106:291 107:108 108:176 109:556 110:249
111:2313 112:1199 113:287 114:883 115:291 116:352
117:1293 118:275 119:231 120:1533 121:384 122:1723
123:409 124:317 125:1608 126:4 128:393 129:72
130:112 131:193 132:70 133:303 134:108 135:26
136:67 137:180 138:295 139:123 140:324 141:152
142:80 143:147 144:131 145:129 146:336 147:243
148:357 149:171 150:228 151:552 152:462 153:37
154:774 155:191 156:528 157:239 158:122 159:388
160:644 161:139 162:275 163:352 164:159 165:261
166:54 167:147 168:564 169:68 170:446 171:129
172:172 173:1007 174:126 175:590 176:734 177:457
178:689 179:153 180:452 181:164 182:1658 183:1334
184:109 185:2325 186:201 187:592 188:779 189:318
190:437 191:88 192:1770 193:1148 194:925 195:789
196:338 197:409 198:741 199:486 200:813 201:545
202:2420 203:1970 204:276 205:260 206:312 207:379
208:246 209:303 210:1378 211:1184 212:811 213:548
216:363 217:595 218:828 219:53 220:561 221:525
222:128 223:1450
End of report
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