[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 11 20:16:45 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Fri 11 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: 278148
Prefixes after maximum aggregation (per Origin AS): 120892
Deaggregation factor: 2.30
Unique aggregates announced (without unneeded subnets): 144064
Number of IPv4 prefixes with a valid ROA: 130260
Number of IPv4 prefixes with an invalid ROA: 42
Number of IPv4 prefixes with no ROA: 147846
Total ASes present in the Internet Routing Table: 20994
Prefixes per ASN: 13.25
Origin-only ASes present in the Internet Routing Table: 18068
Origin ASes announcing only one prefix: 8098
Transit ASes present in the Internet Routing Table: 2926
Transit-only ASes present in the Internet Routing Table: 733
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: 355
Number of instances of unregistered ASNs: 387
Number of 32-bit ASNs allocated by the RIRs: 46790
Number of 32-bit ASNs visible in the Routing Table: 8426
Prefixes from 32-bit ASNs in the Routing Table: 33103
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: 100
Number of addresses announced to Internet: 1642179077
Equivalent to 97 /8s, 225 /16s and 170 /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: 89250
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34745
Total APNIC prefixes after maximum aggregation: 7757
APNIC Deaggregation factor: 4.48
Prefixes being announced from the APNIC address blocks: 33449
Unique aggregates announced from the APNIC address blocks: 8261
APNIC Region origin ASes present in the Internet Routing Table: 1258
APNIC Prefixes per ASN: 26.59
APNIC Region origin ASes announcing only one prefix: 499
APNIC Region transit ASes present in the Internet Routing Table: 202
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: 597
Number of APNIC addresses announced to Internet: 173863788
Equivalent to 10 /8s, 92 /16s and 243 /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: 126037
Total ARIN prefixes after maximum aggregation: 66300
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 124591
Unique aggregates announced from the ARIN address blocks: 67699
ARIN Region origin ASes present in the Internet Routing Table: 9326
ARIN Prefixes per ASN: 13.36
ARIN Region origin ASes announcing only one prefix: 3871
ARIN Region transit ASes present in the Internet Routing Table: 883
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: 1028179977
Equivalent to 61 /8s, 72 /16s and 200 /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: 50915
Total RIPE prefixes after maximum aggregation: 27453
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 52359
Unique aggregates announced from the RIPE address blocks: 38274
RIPE Region origin ASes present in the Internet Routing Table: 4668
RIPE Prefixes per ASN: 11.22
RIPE Region origin ASes announcing only one prefix: 1961
RIPE Region transit ASes present in the Internet Routing Table: 697
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: 1911
Number of RIPE addresses announced to Internet: 287641936
Equivalent to 17 /8s, 37 /16s and 17 /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: 56692
Total LACNIC prefixes after maximum aggregation: 16723
LACNIC Deaggregation factor: 3.39
Prefixes being announced from the LACNIC address blocks: 55011
Unique aggregates announced from the LACNIC address blocks: 24934
LACNIC Region origin ASes present in the Internet Routing Table: 4593
LACNIC Prefixes per ASN: 11.98
LACNIC Region origin ASes announcing only one prefix: 1660
LACNIC Region transit ASes present in the Internet Routing Table: 924
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: 3577
Number of LACNIC addresses announced to Internet: 108994368
Equivalent to 6 /8s, 127 /16s and 31 /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: 9404
Total AfriNIC prefixes after maximum aggregation: 2397
AfriNIC Deaggregation factor: 3.92
Prefixes being announced from the AfriNIC address blocks: 12638
Unique aggregates announced from the AfriNIC address blocks: 4798
AfriNIC Region origin ASes present in the Internet Routing Table: 282
AfriNIC Prefixes per ASN: 44.82
AfriNIC Region origin ASes announcing only one prefix: 107
AfriNIC Region transit ASes present in the Internet Routing Table: 72
Average AfriNIC Region AS path length visible: 6.6
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: 43386112
Equivalent to 2 /8s, 150 /16s and 5 /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 11566 8761 115 CHINAMOBILE-CN China Mobile Communication
56046 2590 811 188 CMNET-JIANGSU-AP China Mobile communicati
56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1501 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
17561 557 36 179 LCS-AS-AP LARUS Limited, HK
45102 536 884 140 ALIBABA-CN-NET Alibaba US Technology Co.,
24445 523 496 66 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 13656 40958 5252 AMAZON-02, US
22773 3335 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US
749 3225 54767 2476 DNIC-AS-00749, US
4155 2847 216 1735 USDA-1, US
36352 2562 210 1141 AS-COLOCROSSING, US
367 2490 3101 1168 DNIC-ASBLK-00306-00371, US
6167 1927 4012 517 CELLCO-PART, US
11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US
7018 1773 22856 1322 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 1173 91 956 AKAMAI-ASN1, NL
3257 1042 2082 806 GTT-BACKBONE GTT, US
34984 926 116 597 TELLCOM-AS, TR
3215 887 4818 291 France Telecom - Orange, FR
25019 841 1301 130 SAUDINETSTC-AS, SA
8452 838 1841 16 TE-AS TE-AS, EG
212238 658 47 582 CDNEXT, GB
8376 574 52 23 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 7479 2014 903 UNINET, MX
11830 1987 369 64 Instituto Costarricense de Electricidad y
10620 1712 248 1232 Telmex Colombia S.A., CO
3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1196 371 22 Telefonica del Peru S.A.A., PE
26615 1022 2487 55 TIM SA, BR
18881 891 1127 31 TELEFONICA BRASIL S.A, BR
11172 725 124 69 Alestra, S. de R.L. de C.V., MX
27651 649 92 46 ENTEL CHILE S.A., CL
28006 647 77 297 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
29571 1067 100 72 ORANGE-COTE-IVOIRE, CI
24835 831 424 77 RAYA-AS, EG
37069 600 1112 11 MOBINIL, EG
36914 573 82 3 KENET-AS, KE
24863 570 389 22 LINKdotNET-AS, EG
20011 568 154 212 INTERNET-SOLUTIONS, ZA
36935 484 518 29 Vodafone-, EG
36903 456 204 330 MT-MPLS, MA
36992 379 615 252 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 13656 40958 5252 AMAZON-02, US
9808 11566 8761 115 CHINAMOBILE-CN China Mobile Communication
8151 7479 2014 903 UNINET, MX
22773 3335 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US
749 3225 54767 2476 DNIC-AS-00749, US
4155 2847 216 1735 USDA-1, US
56046 2590 811 188 CMNET-JIANGSU-AP China Mobile communicati
36352 2562 210 1141 AS-COLOCROSSING, US
367 2490 3101 1168 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 11566 11451 CHINAMOBILE-CN China Mobile Communications Grou
8151 7479 6576 UNINET, MX
22773 3335 3170 ASN-CXA-ALL-CCI-22773-RDC, US
56046 2590 2402 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 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c
56047 1501 1451 CMNET-HUNAN-AP China Mobile communications corp
36352 2562 1421 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
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
/13:214 /14:584 /15:1108 /16:7718 /17:3494 /18:4237
/19:7769 /20:12896 /21:16161 /22:27976 /23:29333 /24:166161
/25:64 /26:81 /27:37 /28:16 /29:17 /30:10
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 4015 7479 UNINET, MX
22773 2489 3335 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2341 13656 AMAZON-02, US
11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
19901 1024 1343 BRSPD-PUBLIC, US
36352 1024 2562 AS-COLOCROSSING, US
10620 994 1712 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)
----------------------------------------------
1:36 2:432 3:847 4:5 5:800 6:149
7:5 8:652 11:171 12:974 13:400 14:116
15:308 16:247 17:3 18:889 20:188 21:4
22:188 23:2654 24:686 27:43 29:19 31:525
32:18 33:1 34:10 35:180 36:2318 37:713
38:2563 39:553 40:78 41:1003 42:21 43:229
44:30 45:4317 46:1029 47:108 49:26 50:361
51:388 52:1382 54:318 55:1108 56:11 57:24
58:16 59:35 60:33 61:65 62:567 63:781
64:1937 65:1135 66:1601 67:1091 68:387 69:1272
70:455 71:191 72:714 74:959 75:321 76:243
77:504 78:368 79:237 80:307 81:371 82:710
83:233 84:350 85:473 86:245 87:220 88:302
89:719 90:106 91:990 92:689 93:485 94:1051
95:676 96:285 97:54 98:506 99:194 100:42
101:26 102:381 103:1316 104:1700 105:199 106:40
107:1532 108:517 109:443 110:40 111:1940 112:618
113:35 114:56 115:29 116:63 117:1077 118:69
119:82 120:1419 121:50 122:64 123:131 124:66
125:25 126:1 128:525 129:396 130:669 131:1020
132:551 133:212 134:476 135:127 136:673 137:537
138:1029 139:444 140:721 141:370 142:1024 143:802
144:446 145:126 146:686 147:517 148:986 149:748
150:181 151:813 152:626 153:146 154:1338 155:913
156:996 157:396 158:565 159:737 160:827 161:655
162:1088 163:439 164:728 165:572 166:809 167:705
168:1567 169:163 170:1764 171:108 172:1338 173:809
174:361 175:87 176:793 177:1109 178:622 179:874
180:41 181:2271 182:28 183:1049 184:459 185:3473
186:2834 187:1713 188:835 189:2014 190:6032 191:538
192:5270 193:1876 194:1262 195:961 196:704 197:1075
198:2744 199:5023 200:4724 201:3763 202:1015 203:710
204:2219 205:1844 206:1583 207:1618 208:1508 209:2025
210:366 211:461 212:1018 213:789 214:936 215:35
216:2583 217:449 218:548 219:28 220:38 221:449
222:29 223:1038
End of report
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