[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Fri Jul 25 20:16:45 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Fri 25 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: 280326
Prefixes after maximum aggregation (per Origin AS): 120816
Deaggregation factor: 2.32
Unique aggregates announced (without unneeded subnets): 143350
Number of IPv4 prefixes with a valid ROA: 130574
Number of IPv4 prefixes with an invalid ROA: 206
Number of IPv4 prefixes with no ROA: 149546
Total ASes present in the Internet Routing Table: 20947
Prefixes per ASN: 13.38
Origin-only ASes present in the Internet Routing Table: 18043
Origin ASes announcing only one prefix: 8110
Transit ASes present in the Internet Routing Table: 2904
Transit-only ASes present in the Internet Routing Table: 722
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: 38
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 349
Number of instances of unregistered ASNs: 381
Number of 32-bit ASNs allocated by the RIRs: 46918
Number of 32-bit ASNs visible in the Routing Table: 8378
Prefixes from 32-bit ASNs in the Routing Table: 33486
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: 105
Number of addresses announced to Internet: 1644146693
Equivalent to 97 /8s, 255 /16s and 176 /24s
Percentage of available address space announced: 44.4
Percentage of allocated address space announced: 44.4
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: 89198
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35175
Total APNIC prefixes after maximum aggregation: 7679
APNIC Deaggregation factor: 4.58
Prefixes being announced from the APNIC address blocks: 34152
Unique aggregates announced from the APNIC address blocks: 8061
APNIC Region origin ASes present in the Internet Routing Table: 1238
APNIC Prefixes per ASN: 27.59
APNIC Region origin ASes announcing only one prefix: 499
APNIC Region transit ASes present in the Internet Routing Table: 195
Average APNIC Region AS path length visible: 7.4
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 576
Number of APNIC addresses announced to Internet: 173355372
Equivalent to 10 /8s, 85 /16s and 49 /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: 126615
Total ARIN prefixes after maximum aggregation: 66611
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 125275
Unique aggregates announced from the ARIN address blocks: 68200
ARIN Region origin ASes present in the Internet Routing Table: 9372
ARIN Prefixes per ASN: 13.37
ARIN Region origin ASes announcing only one prefix: 3900
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: 2209
Number of ARIN addresses announced to Internet: 1028165897
Equivalent to 61 /8s, 72 /16s and 145 /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: 50642
Total RIPE prefixes after maximum aggregation: 27366
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 51961
Unique aggregates announced from the RIPE address blocks: 38105
RIPE Region origin ASes present in the Internet Routing Table: 4647
RIPE Prefixes per ASN: 11.18
RIPE Region origin ASes announcing only one prefix: 1957
RIPE Region transit ASes present in the Internet Routing Table: 707
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1922
Number of RIPE addresses announced to Internet: 287374160
Equivalent to 17 /8s, 32 /16s and 251 /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: 56393
Total LACNIC prefixes after maximum aggregation: 16581
LACNIC Deaggregation factor: 3.40
Prefixes being announced from the LACNIC address blocks: 54639
Unique aggregates announced from the LACNIC address blocks: 24517
LACNIC Region origin ASes present in the Internet Routing Table: 4538
LACNIC Prefixes per ASN: 12.04
LACNIC Region origin ASes announcing only one prefix: 1639
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: 3516
Number of LACNIC addresses announced to Internet: 109214272
Equivalent to 6 /8s, 130 /16s and 122 /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: 11152
Total AfriNIC prefixes after maximum aggregation: 2316
AfriNIC Deaggregation factor: 4.82
Prefixes being announced from the AfriNIC address blocks: 14194
Unique aggregates announced from the AfriNIC address blocks: 4366
AfriNIC Region origin ASes present in the Internet Routing Table: 296
AfriNIC Prefixes per ASN: 47.95
AfriNIC Region origin ASes announcing only one prefix: 115
AfriNIC Region transit ASes present in the Internet Routing Table: 74
Average AfriNIC Region AS path length visible: 6.6
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 155
Number of AfriNIC addresses announced to Internet: 45910784
Equivalent to 2 /8s, 188 /16s and 139 /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 11868 8761 115 CHINAMOBILE-CN China Mobile Communication
56046 2755 811 189 CMNET-JIANGSU-AP China Mobile communicati
56041 1642 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1641 192 50 CMNET-HUNAN-AP China Mobile communication
24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 613 2169 463 SINET-AS Research Organization of Informa
45102 536 884 140 ALIBABA-CN-NET Alibaba US Technology Co.,
24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic
132525 468 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile
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 13662 40974 5280 AMAZON-02, US
22773 3338 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US
749 3223 54766 2474 DNIC-AS-00749, US
4155 2875 218 1726 USDA-1, US
36352 2558 209 1145 AS-COLOCROSSING, US
367 2485 3042 1167 DNIC-ASBLK-00306-00371, US
6167 1937 4026 519 CELLCO-PART, US
11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US
209 1653 4889 266 CENTURYLINK-US-LEGACY-QWEST, US
7018 1652 22846 1241 ATT-INTERNET4, 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 1169 91 952 AKAMAI-ASN1, NL
3257 1052 2083 814 GTT-BACKBONE GTT, US
34984 927 116 598 TELLCOM-AS, TR
3215 887 4818 291 France Telecom - Orange, FR
8452 830 1841 16 TE-AS TE-AS, EG
25019 805 1301 130 SAUDINETSTC-AS, SA
212238 657 46 581 CDNEXT, GB
8376 564 52 24 Jordan Data Communications, JO
51167 564 113 248 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 7409 1992 896 UNINET, MX
11830 1987 369 64 Instituto Costarricense de Electricidad y
10620 1690 242 1218 Telmex Colombia S.A., CO
3816 1348 787 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1188 371 22 Telefonica del Peru S.A.A., PE
26615 1016 2487 55 TIM SA, BR
18881 886 1127 31 TELEFONICA BRASIL S.A, BR
11172 727 124 69 Alestra, S. de R.L. de C.V., MX
27651 650 92 46 ENTEL CHILE S.A., CL
28006 643 76 296 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
24835 1432 572 23 RAYA-AS, EG
29571 1157 101 66 ORANGE-COTE-IVOIRE, CI
24863 1049 388 19 LINKdotNET-AS, EG
37069 953 1112 11 MOBINIL, EG
36914 576 82 3 KENET-AS, KE
20011 568 154 212 INTERNET-SOLUTIONS, ZA
36935 549 518 29 Vodafone-, EG
36903 456 204 330 MT-MPLS, MA
36992 395 954 202 ETISALAT-MISR, 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 13662 40974 5280 AMAZON-02, US
9808 11868 8761 115 CHINAMOBILE-CN China Mobile Communication
8151 7409 1992 896 UNINET, MX
22773 3338 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US
749 3223 54766 2474 DNIC-AS-00749, US
4155 2875 218 1726 USDA-1, US
56046 2755 811 189 CMNET-JIANGSU-AP China Mobile communicati
36352 2558 209 1145 AS-COLOCROSSING, US
367 2485 3042 1167 DNIC-ASBLK-00306-00371, US
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 11868 11753 CHINAMOBILE-CN China Mobile Communications Grou
8151 7409 6513 UNINET, MX
22773 3338 3175 ASN-CXA-ALL-CCI-22773-RDC, US
56046 2755 2566 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
56047 1641 1591 CMNET-HUNAN-AP China Mobile communications corp
56041 1642 1564 CMNET-ZHEJIANG-AP China Mobile communications c
6167 1937 1418 CELLCO-PART, 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
23.147.224.0/24 Origin: 27392 639-DATACENTERS, US
23.147.224.0/24 Transit: 3356 LEVEL3, US
23.147.225.0/24 Origin: 27392 639-DATACENTERS, US
23.147.225.0/24 Transit: 3356 LEVEL3, US
23.147.226.0/24 Origin: 27392 639-DATACENTERS, US
23.147.226.0/24 Transit: 3356 LEVEL3, US
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 /12:159
/13:216 /14:592 /15:1117 /16:7760 /17:3491 /18:4231
/19:7788 /20:13348 /21:15889 /22:28752 /23:29360 /24:167282
/25:65 /26:81 /27:40 /28:18 /29:14 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3988 7409 UNINET, MX
22773 2493 3338 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2345 13662 AMAZON-02, US
11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
19901 1020 1345 BRSPD-PUBLIC, US
36352 1017 2558 AS-COLOCROSSING, US
10620 995 1690 Telmex Colombia S.A., CO
209 962 1653 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)
----------------------------------------------
1:35 2:447 3:852 4:5 5:800 6:145
7:5 8:656 11:171 12:968 13:406 14:136
15:308 16:247 17:3 18:890 20:190 21:4
22:188 23:2688 24:683 27:37 29:19 31:519
32:18 33:1 34:10 35:175 36:2637 37:778
38:2653 39:585 40:84 41:1097 42:21 43:224
44:33 45:4255 46:1007 47:111 49:26 50:482
51:381 52:1378 54:317 55:1110 56:11 57:22
58:18 59:35 60:29 61:61 62:508 63:780
64:1952 65:1124 66:1620 67:1094 68:372 69:1264
70:456 71:190 72:714 74:972 75:319 76:239
77:460 78:364 79:240 80:306 81:398 82:737
83:223 84:342 85:479 86:243 87:220 88:308
89:700 90:107 91:962 92:688 93:483 94:990
95:683 96:274 97:52 98:498 99:189 100:40
101:62 102:382 103:1283 104:1709 105:200 106:40
107:1531 108:519 109:442 110:46 111:2005 112:688
113:38 114:61 115:23 116:56 117:1139 118:77
119:82 120:1457 121:51 122:70 123:129 124:64
125:25 126:1 128:524 129:398 130:674 131:1016
132:558 133:212 134:489 135:128 136:683 137:578
138:1031 139:443 140:769 141:367 142:1051 143:814
144:438 145:122 146:685 147:509 148:1012 149:739
150:211 151:807 152:608 153:131 154:1173 155:909
156:944 157:409 158:575 159:766 160:848 161:691
162:1062 163:442 164:731 165:578 166:815 167:715
168:1526 169:162 170:1762 171:105 172:1339 173:838
174:360 175:83 176:805 177:1042 178:608 179:870
180:45 181:2260 182:47 183:1091 184:458 185:3450
186:2872 187:1654 188:828 189:1993 190:5957 191:548
192:5306 193:1856 194:1216 195:958 196:723 197:1181
198:2765 199:5105 200:4689 201:3812 202:1078 203:719
204:2303 205:1839 206:1592 207:1630 208:1526 209:2023
210:359 211:467 212:1010 213:785 214:937 215:37
216:2603 217:446 218:559 219:18 220:32 221:461
222:24 223:1134
End of report
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