[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 29 20:16:43 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Tue 29 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: 279456
Prefixes after maximum aggregation (per Origin AS): 120412
Deaggregation factor: 2.32
Unique aggregates announced (without unneeded subnets): 142919
Number of IPv4 prefixes with a valid ROA: 130808
Number of IPv4 prefixes with an invalid ROA: 213
Number of IPv4 prefixes with no ROA: 148435
Total ASes present in the Internet Routing Table: 20743
Prefixes per ASN: 13.47
Origin-only ASes present in the Internet Routing Table: 17873
Origin ASes announcing only one prefix: 8012
Transit ASes present in the Internet Routing Table: 2870
Transit-only ASes present in the Internet Routing Table: 706
Paths with bogon ASNs present in the IPv4 Routing Table: 14
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: 343
Number of instances of unregistered ASNs: 376
Number of 32-bit ASNs allocated by the RIRs: 46966
Number of 32-bit ASNs visible in the Routing Table: 8200
Prefixes from 32-bit ASNs in the Routing Table: 33472
Number of bogon 32-bit ASNs visible in the Routing Table: 76
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 100
Number of addresses announced to Internet: 1644511749
Equivalent to 98 /8s, 5 /16s and 66 /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: 89065
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35020
Total APNIC prefixes after maximum aggregation: 7523
APNIC Deaggregation factor: 4.66
Prefixes being announced from the APNIC address blocks: 33968
Unique aggregates announced from the APNIC address blocks: 7802
APNIC Region origin ASes present in the Internet Routing Table: 1194
APNIC Prefixes per ASN: 28.45
APNIC Region origin ASes announcing only one prefix: 469
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: 28
Number of APNIC region 32-bit ASNs visible in the Routing Table: 550
Number of APNIC addresses announced to Internet: 173279852
Equivalent to 10 /8s, 84 /16s and 10 /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: 126285
Total ARIN prefixes after maximum aggregation: 66452
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 124891
Unique aggregates announced from the ARIN address blocks: 68004
ARIN Region origin ASes present in the Internet Routing Table: 9343
ARIN Prefixes per ASN: 13.37
ARIN Region origin ASes announcing only one prefix: 3893
ARIN Region transit ASes present in the Internet Routing Table: 877
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: 2207
Number of ARIN addresses announced to Internet: 1028120073
Equivalent to 61 /8s, 71 /16s and 222 /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: 51066
Total RIPE prefixes after maximum aggregation: 27517
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 52425
Unique aggregates announced from the RIPE address blocks: 38350
RIPE Region origin ASes present in the Internet Routing Table: 4701
RIPE Prefixes per ASN: 11.15
RIPE Region origin ASes announcing only one prefix: 1965
RIPE Region transit ASes present in the Internet Routing Table: 710
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1935
Number of RIPE addresses announced to Internet: 287453520
Equivalent to 17 /8s, 34 /16s and 49 /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: 55701
Total LACNIC prefixes after maximum aggregation: 16310
LACNIC Deaggregation factor: 3.42
Prefixes being announced from the LACNIC address blocks: 53980
Unique aggregates announced from the LACNIC address blocks: 24259
LACNIC Region origin ASes present in the Internet Routing Table: 4376
LACNIC Prefixes per ASN: 12.34
LACNIC Region origin ASes announcing only one prefix: 1577
LACNIC Region transit ASes present in the Internet Routing Table: 881
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: 3354
Number of LACNIC addresses announced to Internet: 109248320
Equivalent to 6 /8s, 130 /16s and 255 /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: 11041
Total AfriNIC prefixes after maximum aggregation: 2353
AfriNIC Deaggregation factor: 4.69
Prefixes being announced from the AfriNIC address blocks: 14092
Unique aggregates announced from the AfriNIC address blocks: 4408
AfriNIC Region origin ASes present in the Internet Routing Table: 291
AfriNIC Prefixes per ASN: 48.43
AfriNIC Region origin ASes announcing only one prefix: 108
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: 154
Number of AfriNIC addresses announced to Internet: 46288896
Equivalent to 2 /8s, 194 /16s and 80 /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 11966 8761 115 CHINAMOBILE-CN China Mobile Communication
56046 2755 811 189 CMNET-JIANGSU-AP China Mobile communicati
56047 1644 192 50 CMNET-HUNAN-AP China Mobile communication
56041 1642 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
24547 866 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 780 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 613 2169 463 SINET-AS Research Organization of Informa
45102 537 887 138 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 13671 40974 5279 AMAZON-02, US
22773 3336 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US
749 3222 54766 2473 DNIC-AS-00749, US
4155 2876 218 1742 USDA-1, US
36352 2559 210 1145 AS-COLOCROSSING, US
367 2490 3042 1171 DNIC-ASBLK-00306-00371, US
6167 1937 4026 519 CELLCO-PART, US
11776 1897 259 215 ATLANTICBB-JOHNSTOWN, US
209 1653 4889 266 CENTURYLINK-US-LEGACY-QWEST, US
7018 1605 22828 1202 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 1167 91 948 AKAMAI-ASN1, NL
3257 1049 2083 813 GTT-BACKBONE GTT, US
34984 926 116 597 TELLCOM-AS, TR
3215 887 4818 291 France Telecom - Orange, FR
8452 829 1841 16 TE-AS TE-AS, EG
25019 804 1301 130 SAUDINETSTC-AS, SA
212238 657 46 581 CDNEXT, GB
51167 564 113 248 CONTABO, DE
8376 562 52 24 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 6933 2032 770 UNINET, MX
11830 1987 369 64 Instituto Costarricense de Electricidad y
10620 1690 242 1218 Telmex Colombia S.A., CO
3816 1345 780 211 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1188 371 22 Telefonica del Peru S.A.A., PE
26615 1009 2487 55 TIM SA, BR
18881 885 1127 31 TELEFONICA BRASIL S.A, BR
11172 726 124 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 1224 572 23 RAYA-AS, EG
29571 1155 99 104 ORANGE-COTE-IVOIRE, CI
24863 1050 388 19 LINKdotNET-AS, EG
37069 957 1112 11 MOBINIL, EG
36914 573 82 3 KENET-AS, KE
36935 572 518 29 Vodafone-, EG
20011 568 154 212 INTERNET-SOLUTIONS, ZA
36992 481 1054 214 ETISALAT-MISR, EG
36903 456 204 330 MT-MPLS, MA
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 13671 40974 5279 AMAZON-02, US
9808 11966 8761 115 CHINAMOBILE-CN China Mobile Communication
8151 6933 2032 770 UNINET, MX
22773 3336 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US
749 3222 54766 2473 DNIC-AS-00749, US
4155 2876 218 1742 USDA-1, US
56046 2755 811 189 CMNET-JIANGSU-AP China Mobile communicati
36352 2559 210 1145 AS-COLOCROSSING, US
367 2490 3042 1171 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 11966 11851 CHINAMOBILE-CN China Mobile Communications Grou
8151 6933 6163 UNINET, MX
22773 3336 3173 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 1897 1682 ATLANTICBB-JOHNSTOWN, US
56047 1644 1594 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 /14:591 /15:1120 /16:7764 /17:3488 /18:4272
/19:7832 /20:13330 /21:15817 /22:28515 /23:29169 /24:166841
/25:65 /26:81 /27:40 /28:18 /29:13 /30:12
/31:1 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3618 6933 UNINET, MX
22773 2491 3336 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2356 13671 AMAZON-02, US
11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
19901 1026 1354 BRSPD-PUBLIC, US
36352 1018 2559 AS-COLOCROSSING, US
10620 996 1690 Telmex Colombia S.A., CO
209 962 1653 CENTURYLINK-US-LEGACY-QWEST, US
11776 878 1897 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:28 2:443 3:850 4:5 5:806 6:145
7:5 8:653 11:171 12:963 13:399 14:112
15:309 16:247 17:3 18:890 20:190 21:4
22:188 23:2660 24:681 27:26 29:19 31:537
32:18 33:1 34:10 35:174 36:2694 37:771
38:2641 39:587 40:84 41:1095 42:22 43:237
44:31 45:4223 46:1009 47:111 49:25 50:480
51:380 52:1383 54:319 55:1092 56:11 57:21
58:18 59:39 60:31 61:61 62:518 63:782
64:1927 65:1114 66:1616 67:1096 68:372 69:1266
70:454 71:190 72:694 74:969 75:318 76:249
77:480 78:359 79:244 80:311 81:401 82:742
83:236 84:341 85:479 86:244 87:218 88:303
89:669 90:107 91:1001 92:689 93:479 94:1027
95:696 96:270 97:53 98:500 99:189 100:40
101:28 102:383 103:1277 104:1697 105:186 106:40
107:1543 108:522 109:445 110:44 111:2022 112:702
113:38 114:54 115:23 116:55 117:1147 118:74
119:82 120:1459 121:51 122:62 123:137 124:65
125:25 126:1 128:531 129:398 130:675 131:1023
132:566 133:212 134:470 135:126 136:681 137:526
138:1036 139:443 140:765 141:366 142:1051 143:840
144:436 145:123 146:685 147:510 148:1026 149:732
150:210 151:815 152:633 153:132 154:1192 155:914
156:955 157:409 158:578 159:758 160:850 161:692
162:1033 163:438 164:728 165:609 166:823 167:694
168:1532 169:164 170:1745 171:105 172:1326 173:809
174:359 175:84 176:802 177:1142 178:614 179:844
180:41 181:2247 182:29 183:1091 184:455 185:3502
186:2852 187:1595 188:859 189:1837 190:5958 191:541
192:5287 193:1889 194:1222 195:977 196:724 197:1183
198:2760 199:5087 200:4610 201:3733 202:987 203:700
204:2294 205:1809 206:1597 207:1634 208:1522 209:1986
210:357 211:467 212:1034 213:794 214:938 215:37
216:2596 217:460 218:560 219:18 220:32 221:461
222:24 223:1138
End of report
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