[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sun Jul 6 20:16:36 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Sun 06 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: 279321
Prefixes after maximum aggregation (per Origin AS): 120901
Deaggregation factor: 2.31
Unique aggregates announced (without unneeded subnets): 144073
Number of IPv4 prefixes with a valid ROA: 130630
Number of IPv4 prefixes with an invalid ROA: 45
Number of IPv4 prefixes with no ROA: 148646
Total ASes present in the Internet Routing Table: 20927
Prefixes per ASN: 13.35
Origin-only ASes present in the Internet Routing Table: 18029
Origin ASes announcing only one prefix: 8060
Transit ASes present in the Internet Routing Table: 2898
Transit-only ASes present in the Internet Routing Table: 723
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: 371
Number of instances of unregistered ASNs: 403
Number of 32-bit ASNs allocated by the RIRs: 46782
Number of 32-bit ASNs visible in the Routing Table: 8367
Prefixes from 32-bit ASNs in the Routing Table: 33347
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: 1646110917
Equivalent to 98 /8s, 29 /16s and 168 /24s
Percentage of available address space announced: 44.5
Percentage of allocated address space announced: 44.5
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: 90030
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 33779
Total APNIC prefixes after maximum aggregation: 7501
APNIC Deaggregation factor: 4.50
Prefixes being announced from the APNIC address blocks: 32546
Unique aggregates announced from the APNIC address blocks: 7841
APNIC Region origin ASes present in the Internet Routing Table: 1266
APNIC Prefixes per ASN: 25.71
APNIC Region origin ASes announcing only one prefix: 510
APNIC Region transit ASes present in the Internet Routing Table: 199
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: 606
Number of APNIC addresses announced to Internet: 173132652
Equivalent to 10 /8s, 81 /16s and 203 /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: 126577
Total ARIN prefixes after maximum aggregation: 66487
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 124902
Unique aggregates announced from the ARIN address blocks: 67793
ARIN Region origin ASes present in the Internet Routing Table: 9319
ARIN Prefixes per ASN: 13.40
ARIN Region origin ASes announcing only one prefix: 3861
ARIN Region transit ASes present in the Internet Routing Table: 882
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: 2188
Number of ARIN addresses announced to Internet: 1029130505
Equivalent to 61 /8s, 87 /16s and 73 /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: 51138
Total RIPE prefixes after maximum aggregation: 27715
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 52711
Unique aggregates announced from the RIPE address blocks: 38475
RIPE Region origin ASes present in the Internet Routing Table: 4685
RIPE Prefixes per ASN: 11.25
RIPE Region origin ASes announcing only one prefix: 1971
RIPE Region transit ASes present in the Internet Routing Table: 696
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: 1926
Number of RIPE addresses announced to Internet: 288360528
Equivalent to 17 /8s, 48 /16s and 8 /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: 56749
Total LACNIC prefixes after maximum aggregation: 16563
LACNIC Deaggregation factor: 3.43
Prefixes being announced from the LACNIC address blocks: 55032
Unique aggregates announced from the LACNIC address blocks: 24935
LACNIC Region origin ASes present in the Internet Routing Table: 4522
LACNIC Prefixes per ASN: 12.17
LACNIC Region origin ASes announcing only one prefix: 1610
LACNIC Region transit ASes present in the Internet Routing Table: 905
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3497
Number of LACNIC addresses announced to Internet: 109355008
Equivalent to 6 /8s, 132 /16s and 160 /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: 10707
Total AfriNIC prefixes after maximum aggregation: 2376
AfriNIC Deaggregation factor: 4.51
Prefixes being announced from the AfriNIC address blocks: 14020
Unique aggregates announced from the AfriNIC address blocks: 4920
AfriNIC Region origin ASes present in the Internet Routing Table: 285
AfriNIC Prefixes per ASN: 49.19
AfriNIC Region origin ASes announcing only one prefix: 108
AfriNIC Region transit ASes present in the Internet Routing Table: 75
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 150
Number of AfriNIC addresses announced to Internet: 46018048
Equivalent to 2 /8s, 190 /16s and 46 /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 11374 8759 113 CHINAMOBILE-CN China Mobile Communication
56046 2366 811 188 CMNET-JIANGSU-AP China Mobile communicati
56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1482 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
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
17561 521 33 148 LCS-AS-AP LARUS Limited, HK
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 13560 40947 5218 AMAZON-02, US
22773 3335 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US
749 3226 54767 2477 DNIC-AS-00749, US
4155 2837 215 1730 USDA-1, US
36352 2559 210 1138 AS-COLOCROSSING, US
367 2458 3164 1163 DNIC-ASBLK-00306-00371, US
6167 1909 3939 521 CELLCO-PART, US
11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US
7018 1776 22857 1324 ATT-INTERNET4, US
209 1657 4889 270 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 1186 92 963 AKAMAI-ASN1, NL
3257 1041 2082 805 GTT-BACKBONE GTT, US
34984 934 116 603 TELLCOM-AS, TR
3215 887 4818 291 France Telecom - Orange, FR
8452 815 1841 16 TE-AS TE-AS, EG
25019 815 1301 129 SAUDINETSTC-AS, SA
212238 663 47 587 CDNEXT, GB
8376 573 53 20 Jordan Data Communications, JO
51167 568 113 251 CONTABO, DE
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 7478 2018 907 UNINET, MX
11830 1986 369 64 Instituto Costarricense de Electricidad y
10620 1711 248 1231 Telmex Colombia S.A., CO
3816 1344 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1195 371 22 Telefonica del Peru S.A.A., PE
26615 1021 2487 55 TIM SA, BR
18881 884 1127 31 TELEFONICA BRASIL S.A, BR
11172 723 124 70 Alestra, S. de R.L. de C.V., MX
27651 646 91 44 ENTEL CHILE S.A., CL
28006 643 77 294 CORPORACION NACIONAL DE TELECOMUNICACIONE
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 1158 100 63 ORANGE-COTE-IVOIRE, CI
24835 1014 470 107 RAYA-AS, EG
36935 599 517 41 Vodafone-, EG
36914 576 82 3 KENET-AS, KE
20011 568 154 212 INTERNET-SOLUTIONS, ZA
36992 524 1161 171 ETISALAT-MISR, EG
36903 482 218 340 MT-MPLS, MA
37069 465 1062 15 MOBINIL, EG
2018 376 318 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 13560 40947 5218 AMAZON-02, US
9808 11374 8759 113 CHINAMOBILE-CN China Mobile Communication
8151 7478 2018 907 UNINET, MX
22773 3335 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US
749 3226 54767 2477 DNIC-AS-00749, US
4155 2837 215 1730 USDA-1, US
36352 2559 210 1138 AS-COLOCROSSING, US
367 2458 3164 1163 DNIC-ASBLK-00306-00371, US
56046 2366 811 188 CMNET-JIANGSU-AP China Mobile communicati
11830 1986 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 11374 11261 CHINAMOBILE-CN China Mobile Communications Grou
8151 7478 6571 UNINET, MX
22773 3335 3172 ASN-CXA-ALL-CCI-22773-RDC, US
56046 2366 2178 CMNET-JIANGSU-AP China Mobile communications co
11830 1986 1922 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1902 1687 ATLANTICBB-JOHNSTOWN, US
56041 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1451 1435 LINKdotNET-AS, EG
56047 1482 1432 CMNET-HUNAN-AP China Mobile communications corp
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 /8:14 /9:11 /10:31 /11:51 /12:160
/13:219 /14:592 /15:1108 /16:7728 /17:3515 /18:4293
/19:7807 /20:12898 /21:16072 /22:28813 /23:29424 /24:166355
/25:63 /26:80 /27:37 /28:16 /29:18 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 4000 7478 UNINET, MX
22773 2491 3335 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2329 13560 AMAZON-02, US
11830 1690 1986 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1025 2559 AS-COLOCROSSING, US
19901 1015 1319 BRSPD-PUBLIC, US
10620 993 1711 Telmex Colombia S.A., CO
209 962 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)
----------------------------------------------
1:21 2:456 3:822 4:5 5:808 6:149
7:5 8:654 11:171 12:975 13:391 14:113
15:307 16:247 17:4 18:886 20:144 21:4
22:188 23:2643 24:684 27:25 29:19 31:525
32:18 33:1 34:10 35:179 36:2071 37:793
38:2596 39:552 40:78 41:1000 42:21 43:228
44:29 45:4386 46:1009 47:99 49:21 50:364
51:387 52:1382 54:315 55:1097 56:11 57:23
58:16 59:38 60:31 61:79 62:545 63:787
64:1923 65:1149 66:1601 67:1099 68:372 69:1255
70:449 71:190 72:719 74:963 75:320 76:258
77:497 78:371 79:254 80:297 81:378 82:725
83:214 84:358 85:485 86:245 87:221 88:305
89:720 90:106 91:991 92:695 93:493 94:983
95:682 96:289 97:59 98:506 99:189 100:42
101:21 102:381 103:1299 104:1682 105:213 106:40
107:1547 108:534 109:449 110:40 111:1932 112:578
113:40 114:52 115:28 116:58 117:1081 118:70
119:82 120:1399 121:49 122:88 123:130 124:69
125:25 126:1 128:515 129:393 130:669 131:1050
132:545 133:213 134:469 135:127 136:631 137:530
138:1002 139:439 140:737 141:367 142:1022 143:791
144:426 145:122 146:685 147:521 148:991 149:771
150:181 151:805 152:630 153:144 154:1387 155:859
156:1162 157:403 158:555 159:745 160:881 161:660
162:1077 163:435 164:723 165:579 166:811 167:700
168:1546 169:166 170:1767 171:110 172:1349 173:814
174:362 175:86 176:795 177:1106 178:614 179:892
180:41 181:2260 182:28 183:1033 184:462 185:3608
186:2808 187:1716 188:851 189:2005 190:6062 191:523
192:5277 193:1908 194:1270 195:967 196:738 197:1238
198:2745 199:5003 200:4684 201:3801 202:974 203:743
204:2225 205:1834 206:1579 207:1627 208:1584 209:2029
210:353 211:448 212:1041 213:809 214:923 215:35
216:2590 217:453 218:550 219:19 220:34 221:415
222:24 223:975
End of report
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