[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Tue Jul 1 20:16:39 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Tue 01 Jul, 2025
IPv4 BGP Table (R&E) as seen at KREONet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/
Analysis Summary
----------------
BGP routing table entries examined: 273020
Prefixes after maximum aggregation (per Origin AS): 119250
Deaggregation factor: 2.29
Unique aggregates announced (without unneeded subnets): 141294
Number of IPv4 prefixes with a valid ROA: 126404
Number of IPv4 prefixes with an invalid ROA: 42
Number of IPv4 prefixes with no ROA: 146574
Total ASes present in the Internet Routing Table: 20617
Prefixes per ASN: 13.24
Origin-only ASes present in the Internet Routing Table: 17768
Origin ASes announcing only one prefix: 7983
Transit ASes present in the Internet Routing Table: 2849
Transit-only ASes present in the Internet Routing Table: 727
Paths with bogon ASNs present in the IPv4 Routing Table: 13
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 30
Max AS path prepend of ASN (265171) 25
Prefixes from unregistered ASNs in the Routing Table: 372
Number of instances of unregistered ASNs: 404
Number of 32-bit ASNs allocated by the RIRs: 46722
Number of 32-bit ASNs visible in the Routing Table: 8176
Prefixes from 32-bit ASNs in the Routing Table: 32046
Number of bogon 32-bit ASNs visible in the Routing Table: 74
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 110
Number of addresses announced to Internet: 1566118149
Equivalent to 93 /8s, 89 /16s and 17 /24s
Percentage of available address space announced: 42.3
Percentage of allocated address space announced: 42.3
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: 86841
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 33369
Total APNIC prefixes after maximum aggregation: 7398
APNIC Deaggregation factor: 4.51
Prefixes being announced from the APNIC address blocks: 32050
Unique aggregates announced from the APNIC address blocks: 7586
APNIC Region origin ASes present in the Internet Routing Table: 1207
APNIC Prefixes per ASN: 26.55
APNIC Region origin ASes announcing only one prefix: 472
APNIC Region transit ASes present in the Internet Routing Table: 194
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 578
Number of APNIC addresses announced to Internet: 165154412
Equivalent to 9 /8s, 216 /16s and 14 /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: 125548
Total ARIN prefixes after maximum aggregation: 66232
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 123608
Unique aggregates announced from the ARIN address blocks: 67223
ARIN Region origin ASes present in the Internet Routing Table: 9319
ARIN Prefixes per ASN: 13.26
ARIN Region origin ASes announcing only one prefix: 3873
ARIN Region transit ASes present in the Internet Routing Table: 881
Average ARIN Region AS path length visible: 5.4
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2194
Number of ARIN addresses announced to Internet: 961646601
Equivalent to 57 /8s, 81 /16s and 144 /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: 50297
Total RIPE prefixes after maximum aggregation: 27206
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 51967
Unique aggregates announced from the RIPE address blocks: 37993
RIPE Region origin ASes present in the Internet Routing Table: 4641
RIPE Prefixes per ASN: 11.20
RIPE Region origin ASes announcing only one prefix: 1954
RIPE Region transit ASes present in the Internet Routing Table: 698
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1916
Number of RIPE addresses announced to Internet: 286757712
Equivalent to 17 /8s, 23 /16s and 147 /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: 52747
Total LACNIC prefixes after maximum aggregation: 15841
LACNIC Deaggregation factor: 3.33
Prefixes being announced from the LACNIC address blocks: 51191
Unique aggregates announced from the LACNIC address blocks: 23314
LACNIC Region origin ASes present in the Internet Routing Table: 4310
LACNIC Prefixes per ASN: 11.88
LACNIC Region origin ASes announcing only one prefix: 1577
LACNIC Region transit ASes present in the Internet Routing Table: 855
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3341
Number of LACNIC addresses announced to Internet: 106166080
Equivalent to 6 /8s, 83 /16s and 247 /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: 10687
Total AfriNIC prefixes after maximum aggregation: 2313
AfriNIC Deaggregation factor: 4.62
Prefixes being announced from the AfriNIC address blocks: 14094
Unique aggregates announced from the AfriNIC address blocks: 5069
AfriNIC Region origin ASes present in the Internet Routing Table: 285
AfriNIC Prefixes per ASN: 49.45
AfriNIC Region origin ASes announcing only one prefix: 107
AfriNIC Region transit ASes present in the Internet Routing Table: 76
Average AfriNIC Region AS path length visible: 6.4
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 147
Number of AfriNIC addresses announced to Internet: 46280960
Equivalent to 2 /8s, 194 /16s and 49 /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 11227 8759 113 CHINAMOBILE-CN China Mobile Communication
56046 2350 811 188 CMNET-JIANGSU-AP China Mobile communicati
56041 1669 718 90 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1481 192 50 CMNET-HUNAN-AP China Mobile communication
24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
17561 651 41 217 LCS-AS-AP LARUS Limited, HK
2907 611 2169 463 SINET-AS Research Organization of Informa
45102 532 883 137 ALIBABA-CN-NET Alibaba US Technology Co.,
24445 524 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13587 40948 5209 AMAZON-02, US
22773 3338 3016 165 ASN-CXA-ALL-CCI-22773-RDC, US
749 3226 54767 2477 DNIC-AS-00749, US
4155 2847 216 1724 USDA-1, US
36352 2567 210 1136 AS-COLOCROSSING, US
367 2424 3162 1156 DNIC-ASBLK-00306-00371, US
6167 1909 3939 521 CELLCO-PART, US
11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US
7018 1814 22860 1356 ATT-INTERNET4, US
209 1657 4889 269 CENTURYLINK-US-LEGACY-QWEST, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 1936 130 50 ALJAWWALSTC-AS, SA
20940 1162 90 948 AKAMAI-ASN1, NL
3257 1042 2082 805 GTT-BACKBONE GTT, US
3215 887 4818 291 France Telecom - Orange, FR
25019 814 1301 129 SAUDINETSTC-AS, SA
8452 812 1841 16 TE-AS TE-AS, EG
34984 678 74 414 TELLCOM-AS, TR
212238 663 47 587 CDNEXT, GB
51167 568 113 251 CONTABO, DE
8376 566 52 23 Jordan Data Communications, JO
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 7143 1923 909 UNINET, MX
11830 1987 369 64 Instituto Costarricense de Electricidad y
10620 1710 248 1230 Telmex Colombia S.A., CO
3816 1344 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1198 371 22 Telefonica del Peru S.A.A., PE
26615 1053 2487 55 TIM SA, BR
18881 882 1127 31 TELEFONICA BRASIL S.A, BR
28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE
27651 647 91 44 ENTEL CHILE S.A., CL
14117 620 116 15 Telefonica del Sur S.A., CL
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1451 389 16 LINKdotNET-AS, EG
29571 1064 100 72 ORANGE-COTE-IVOIRE, CI
24835 1060 491 109 RAYA-AS, EG
36935 597 517 41 Vodafone-, EG
36914 569 82 3 KENET-AS, KE
20011 568 154 212 INTERNET-SOLUTIONS, ZA
36992 553 1192 126 ETISALAT-MISR, EG
36903 456 204 330 MT-MPLS, MA
37069 451 1046 15 MOBINIL, EG
2018 375 318 69 TENET-1, ZA
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13587 40948 5209 AMAZON-02, US
9808 11227 8759 113 CHINAMOBILE-CN China Mobile Communication
8151 7143 1923 909 UNINET, MX
22773 3338 3016 165 ASN-CXA-ALL-CCI-22773-RDC, US
749 3226 54767 2477 DNIC-AS-00749, US
4155 2847 216 1724 USDA-1, US
36352 2567 210 1136 AS-COLOCROSSING, US
367 2424 3162 1156 DNIC-ASBLK-00306-00371, US
56046 2350 811 188 CMNET-JIANGSU-AP China Mobile communicati
11830 1987 369 64 Instituto Costarricense de Electricidad y
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 11227 11114 CHINAMOBILE-CN China Mobile Communications Grou
8151 7143 6234 UNINET, MX
22773 3338 3173 ASN-CXA-ALL-CCI-22773-RDC, US
56046 2350 2162 CMNET-JIANGSU-AP China Mobile communications co
11830 1987 1923 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1902 1687 ATLANTICBB-JOHNSTOWN, US
56041 1669 1579 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1451 1435 LINKdotNET-AS, EG
36352 2567 1431 AS-COLOCROSSING, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US
21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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/KREONet2/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
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
41.67.248.0/22 Origin: 15964 CAMNET-AS, CM
41.67.248.0/22 Transit: 37662 WIOCC-AS, MU
41.67.252.0/23 Origin: 15964 CAMNET-AS, CM
41.67.252.0/23 Transit: 37662 WIOCC-AS, MU
41.204.224.0/24 Origin: 36911 RESERVED, ZZ
41.204.224.0/24 Transit: 328766 RESERVED, ZZ
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:30 /11:42 /12:150
/13:210 /14:576 /15:1100 /16:7597 /17:3469 /18:4253
/19:7682 /20:12724 /21:15597 /22:28349 /23:28852 /24:162140
/25:64 /26:81 /27:35 /28:13 /29:17 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3873 7143 UNINET, MX
22773 2492 3338 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2348 13587 AMAZON-02, US
11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1030 2567 AS-COLOCROSSING, US
19901 1012 1316 BRSPD-PUBLIC, US
10620 992 1710 Telmex Colombia S.A., CO
209 963 1657 CENTURYLINK-US-LEGACY-QWEST, US
11776 883 1902 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:19 2:445 3:821 4:5 5:798 6:147
7:5 8:658 11:171 12:972 13:391 14:114
15:308 16:247 17:4 18:885 20:188 21:4
22:188 23:2627 24:569 27:23 29:19 31:526
32:18 33:1 34:10 35:180 36:2022 37:771
38:2473 39:551 40:68 41:989 42:21 43:228
44:28 45:4185 46:1014 47:98 49:21 50:357
51:387 52:1382 54:315 55:1099 56:11 57:22
58:16 59:38 60:35 61:78 62:550 63:762
64:1917 65:1093 66:1597 67:1075 68:373 69:1180
70:446 71:194 72:666 74:951 75:320 76:244
77:516 78:371 79:249 80:295 81:369 82:711
83:214 84:339 85:484 86:243 87:214 88:294
89:727 90:106 91:941 92:646 93:491 94:949
95:672 96:283 97:59 98:502 99:184 100:42
101:15 102:367 103:1238 104:1681 105:206 106:41
107:1547 108:556 109:449 110:40 111:1925 112:571
113:36 114:52 115:28 116:53 117:1052 118:57
119:84 120:1396 121:49 122:77 123:128 124:70
125:25 128:513 129:397 130:668 131:1036 132:568
133:213 134:460 135:127 136:599 137:510 138:956
139:430 140:713 141:364 142:1040 143:773 144:428
145:126 146:690 147:511 148:991 149:731 150:206
151:779 152:606 153:144 154:1390 155:860 156:1170
157:407 158:549 159:747 160:825 161:657 162:1065
163:432 164:725 165:560 166:815 167:690 168:1487
169:160 170:1644 171:114 172:1347 173:814 174:362
175:88 176:782 177:1116 178:603 179:815 180:41
181:2108 182:28 183:1032 184:460 185:3541 186:2508
187:1604 188:831 189:1927 190:5247 191:482 192:5232
193:1911 194:1260 195:934 196:703 197:1278 198:2737
199:4996 200:4339 201:3654 202:945 203:719 204:2197
205:1817 206:1567 207:1613 208:1498 209:1989 210:333
211:446 212:1000 213:783 214:923 215:35 216:2586
217:450 218:548 219:19 220:34 221:414 222:24
223:980
End of report
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