[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Tue Jun 17 20:16:41 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Tue 17 Jun, 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: 262713
Prefixes after maximum aggregation (per Origin AS): 115319
Deaggregation factor: 2.28
Unique aggregates announced (without unneeded subnets): 135983
Number of IPv4 prefixes with a valid ROA: 118801
Number of IPv4 prefixes with an invalid ROA: 44
Number of IPv4 prefixes with no ROA: 143868
Total ASes present in the Internet Routing Table: 19713
Prefixes per ASN: 13.33
Origin-only ASes present in the Internet Routing Table: 17023
Origin ASes announcing only one prefix: 7727
Transit ASes present in the Internet Routing Table: 2690
Transit-only ASes present in the Internet Routing Table: 704
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: 369
Number of instances of unregistered ASNs: 401
Number of 32-bit ASNs allocated by the RIRs: 46667
Number of 32-bit ASNs visible in the Routing Table: 7460
Prefixes from 32-bit ASNs in the Routing Table: 28146
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: 109
Number of addresses announced to Internet: 1557582813
Equivalent to 92 /8s, 214 /16s and 211 /24s
Percentage of available address space announced: 42.1
Percentage of allocated address space announced: 42.1
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: 83151
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32095
Total APNIC prefixes after maximum aggregation: 7089
APNIC Deaggregation factor: 4.53
Prefixes being announced from the APNIC address blocks: 31131
Unique aggregates announced from the APNIC address blocks: 7329
APNIC Region origin ASes present in the Internet Routing Table: 1187
APNIC Prefixes per ASN: 26.23
APNIC Region origin ASes announcing only one prefix: 466
APNIC Region transit ASes present in the Internet Routing Table: 187
Average APNIC Region AS path length visible: 7.4
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 547
Number of APNIC addresses announced to Internet: 166416748
Equivalent to 9 /8s, 235 /16s and 81 /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: 124872
Total ARIN prefixes after maximum aggregation: 65676
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 122514
Unique aggregates announced from the ARIN address blocks: 66203
ARIN Region origin ASes present in the Internet Routing Table: 9307
ARIN Prefixes per ASN: 13.16
ARIN Region origin ASes announcing only one prefix: 3872
ARIN Region transit ASes present in the Internet Routing Table: 869
Average ARIN Region AS path length visible: 5.3
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: 960396001
Equivalent to 57 /8s, 62 /16s and 122 /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: 49229
Total RIPE prefixes after maximum aggregation: 26512
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 51048
Unique aggregates announced from the RIPE address blocks: 37169
RIPE Region origin ASes present in the Internet Routing Table: 4631
RIPE Prefixes per ASN: 11.02
RIPE Region origin ASes announcing only one prefix: 1952
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: 1910
Number of RIPE addresses announced to Internet: 286273616
Equivalent to 17 /8s, 16 /16s and 48 /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: 45097
Total LACNIC prefixes after maximum aggregation: 13325
LACNIC Deaggregation factor: 3.38
Prefixes being announced from the LACNIC address blocks: 44208
Unique aggregates announced from the LACNIC address blocks: 19925
LACNIC Region origin ASes present in the Internet Routing Table: 3465
LACNIC Prefixes per ASN: 12.76
LACNIC Region origin ASes announcing only one prefix: 1327
LACNIC Region transit ASes present in the Internet Routing Table: 721
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: 2655
Number of LACNIC addresses announced to Internet: 98826304
Equivalent to 5 /8s, 227 /16s and 248 /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: 11051
Total AfriNIC prefixes after maximum aggregation: 2456
AfriNIC Deaggregation factor: 4.50
Prefixes being announced from the AfriNIC address blocks: 13703
Unique aggregates announced from the AfriNIC address blocks: 5249
AfriNIC Region origin ASes present in the Internet Routing Table: 288
AfriNIC Prefixes per ASN: 47.58
AfriNIC Region origin ASes announcing only one prefix: 110
AfriNIC Region transit ASes present in the Internet Routing Table: 79
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 154
Number of AfriNIC addresses announced to Internet: 45624320
Equivalent to 2 /8s, 184 /16s and 44 /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 11037 8759 104 CHINAMOBILE-CN China Mobile Communication
56046 2100 811 188 CMNET-JIANGSU-AP China Mobile communicati
56041 1634 718 90 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1482 192 50 CMNET-HUNAN-AP China Mobile communication
24547 868 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 778 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 608 2170 465 SINET-AS Research Organization of Informa
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
45102 512 848 135 ALIBABA-CN-NET Alibaba US Technology Co.,
17676 462 8751 151 GIGAINFRA SoftBank Corp., JP
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 13674 40938 5239 AMAZON-02, US
22773 3347 3016 167 ASN-CXA-ALL-CCI-22773-RDC, US
749 3229 54767 2480 DNIC-AS-00749, US
4155 2801 213 1709 USDA-1, US
36352 2552 209 1126 AS-COLOCROSSING, US
367 2438 3164 1164 DNIC-ASBLK-00306-00371, US
7018 1952 22869 1453 ATT-INTERNET4, US
6167 1910 3953 511 CELLCO-PART, US
11776 1901 259 214 ATLANTICBB-JOHNSTOWN, US
209 1658 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 1182 92 960 AKAMAI-ASN1, NL
3257 1001 2081 783 GTT-BACKBONE GTT, US
3215 887 4818 291 France Telecom - Orange, FR
25019 815 1301 129 SAUDINETSTC-AS, SA
8452 790 1841 16 TE-AS TE-AS, EG
34984 677 73 410 TELLCOM-AS, TR
212238 636 46 561 CDNEXT, GB
8376 572 53 21 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 7373 1993 935 UNINET, MX
11830 1990 369 64 Instituto Costarricense de Electricidad y
10620 1669 243 1209 Telmex Colombia S.A., CO
3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1200 371 22 Telefonica del Peru S.A.A., PE
26615 1048 2503 52 TIM SA, BR
18881 884 1127 31 TELEFONICA BRASIL S.A, BR
28006 649 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE
27651 627 90 33 ENTEL CHILE S.A., CL
6057 575 526 14 Administracion Nacional de Telecomunicaci
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 1463 389 16 LINKdotNET-AS, EG
29571 1110 100 73 ORANGE-COTE-IVOIRE, CI
24835 1062 476 108 RAYA-AS, EG
20011 980 185 285 INTERNET-SOLUTIONS, ZA
36992 604 1228 124 ETISALAT-MISR, EG
36935 575 121 161 Vodafone-, EG
36914 562 82 3 KENET-AS, KE
37069 451 1046 15 MOBINIL, EG
36903 439 196 324 MT-MPLS, MA
2018 374 318 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 13674 40938 5239 AMAZON-02, US
9808 11037 8759 104 CHINAMOBILE-CN China Mobile Communication
8151 7373 1993 935 UNINET, MX
22773 3347 3016 167 ASN-CXA-ALL-CCI-22773-RDC, US
749 3229 54767 2480 DNIC-AS-00749, US
4155 2801 213 1709 USDA-1, US
36352 2552 209 1126 AS-COLOCROSSING, US
367 2438 3164 1164 DNIC-ASBLK-00306-00371, US
56046 2100 811 188 CMNET-JIANGSU-AP China Mobile communicati
11830 1990 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 11037 10933 CHINAMOBILE-CN China Mobile Communications Grou
8151 7373 6438 UNINET, MX
22773 3347 3180 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1990 1926 Instituto Costarricense de Electricidad y Telec
56046 2100 1912 CMNET-JIANGSU-AP China Mobile communications co
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1901 1687 ATLANTICBB-JOHNSTOWN, US
56041 1634 1544 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1463 1447 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
394804 UNALLOCATED 8.33.225.0/24 3356 LEVEL3, 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
399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US
13342 UNALLOCATED 12.17.5.0/24 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
41.204.224.0/24 Origin: 36911 RESERVED, ZZ
41.204.224.0/24 Transit: 328766 RESERVED, ZZ
41.204.226.0/24 Origin: 36911 RESERVED, ZZ
41.204.226.0/24 Transit: 328766 RESERVED, ZZ
41.204.227.0/24 Origin: 36911 RESERVED, ZZ
41.204.227.0/24 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 /11:41 /12:151
/13:209 /14:574 /15:1092 /16:7639 /17:3421 /18:4190
/19:7563 /20:13055 /21:15100 /22:27238 /23:27837 /24:154328
/25:63 /26:81 /27:33 /28:13 /29:16 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3985 7373 UNINET, MX
22773 2499 3347 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2351 13674 AMAZON-02, US
11830 1693 1990 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 1029 2552 AS-COLOCROSSING, US
19901 990 1294 BRSPD-PUBLIC, US
10620 964 1669 Telmex Colombia S.A., CO
209 963 1658 CENTURYLINK-US-LEGACY-QWEST, US
11776 883 1901 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 2:456 3:820 4:5 5:807 6:149
7:5 8:665 11:171 12:974 13:397 14:115
15:304 16:247 17:4 18:891 20:187 21:4
22:188 23:2614 24:703 27:23 29:19 31:525
32:9 33:1 34:10 35:179 36:1902 37:883
38:2004 39:550 40:55 41:956 42:21 43:193
44:35 45:3560 46:960 47:92 49:19 50:360
51:387 52:1400 54:320 55:1091 56:11 57:22
58:16 59:30 60:17 61:76 62:524 63:745
64:1960 65:1081 66:1534 67:996 68:400 69:1160
70:471 71:193 72:646 74:935 75:318 76:255
77:479 78:350 79:248 80:284 81:367 82:717
83:206 84:339 85:424 86:233 87:202 88:302
89:707 90:104 91:939 92:638 93:475 94:924
95:666 96:292 97:53 98:457 99:186 100:36
101:17 102:338 103:1187 104:1668 105:207 107:1564
108:548 109:399 110:35 111:1922 112:523 113:35
114:41 115:23 116:57 117:1043 118:58 119:83
120:1350 121:43 122:66 123:61 124:61 125:25
128:482 129:396 130:675 131:961 132:556 133:212
134:451 135:124 136:606 137:504 138:837 139:426
140:710 141:360 142:1030 143:718 144:426 145:119
146:688 147:506 148:896 149:763 150:205 151:642
152:475 153:143 154:1037 155:854 156:1006 157:373
158:565 159:739 160:864 161:641 162:1031 163:425
164:712 165:525 166:796 167:661 168:1137 169:159
170:1532 171:121 172:1356 173:806 174:294 175:67
176:765 177:837 178:495 179:698 180:40 181:1783
182:25 183:995 184:454 185:3530 186:2062 187:1545
188:816 189:1840 190:4196 191:455 192:5189 193:1891
194:1229 195:925 196:684 197:1609 198:2742 199:4947
200:3647 201:3305 202:944 203:725 204:2163 205:1738
206:1523 207:1547 208:1471 209:1942 210:296 211:426
212:1009 213:767 214:938 215:37 216:2544 217:414
218:527 219:18 220:28 221:389 222:24 223:891
End of report
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