[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Fri Apr 25 20:17:02 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Fri 25 Apr, 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: 261743
Prefixes after maximum aggregation (per Origin AS): 114428
Deaggregation factor: 2.29
Unique aggregates announced (without unneeded subnets): 135759
Number of IPv4 prefixes with a valid ROA: 116817
Number of IPv4 prefixes with an invalid ROA: 18
Number of IPv4 prefixes with no ROA: 144908
Total ASes present in the Internet Routing Table: 19793
Prefixes per ASN: 13.22
Origin-only ASes present in the Internet Routing Table: 17094
Origin ASes announcing only one prefix: 7756
Transit ASes present in the Internet Routing Table: 2699
Transit-only ASes present in the Internet Routing Table: 722
Paths with bogon ASNs present in the IPv4 Routing Table: 6
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: 318
Number of instances of unregistered ASNs: 319
Number of 32-bit ASNs allocated by the RIRs: 46264
Number of 32-bit ASNs visible in the Routing Table: 7469
Prefixes from 32-bit ASNs in the Routing Table: 27716
Number of bogon 32-bit ASNs visible in the Routing Table: 4
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 134
Number of addresses announced to Internet: 1561578717
Equivalent to 93 /8s, 19 /16s and 204 /24s
Percentage of available address space announced: 42.2
Percentage of allocated address space announced: 42.2
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: 82818
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31728
Total APNIC prefixes after maximum aggregation: 7315
APNIC Deaggregation factor: 4.34
Prefixes being announced from the APNIC address blocks: 30524
Unique aggregates announced from the APNIC address blocks: 7879
APNIC Region origin ASes present in the Internet Routing Table: 1213
APNIC Prefixes per ASN: 25.16
APNIC Region origin ASes announcing only one prefix: 484
APNIC Region transit ASes present in the Internet Routing Table: 211
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 556
Number of APNIC addresses announced to Internet: 175787116
Equivalent to 10 /8s, 122 /16s and 76 /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: 125565
Total ARIN prefixes after maximum aggregation: 64654
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122872
Unique aggregates announced from the ARIN address blocks: 66120
ARIN Region origin ASes present in the Internet Routing Table: 9340
ARIN Prefixes per ASN: 13.16
ARIN Region origin ASes announcing only one prefix: 3895
ARIN Region transit ASes present in the Internet Routing Table: 868
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: 2176
Number of ARIN addresses announced to Internet: 965190113
Equivalent to 57 /8s, 135 /16s and 161 /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: 49067
Total RIPE prefixes after maximum aggregation: 26527
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 50538
Unique aggregates announced from the RIPE address blocks: 36916
RIPE Region origin ASes present in the Internet Routing Table: 4602
RIPE Prefixes per ASN: 10.98
RIPE Region origin ASes announcing only one prefix: 1931
RIPE Region transit ASes present in the Internet Routing Table: 688
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1883
Number of RIPE addresses announced to Internet: 281163088
Equivalent to 16 /8s, 194 /16s and 53 /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: 44538
Total LACNIC prefixes after maximum aggregation: 13462
LACNIC Deaggregation factor: 3.31
Prefixes being announced from the LACNIC address blocks: 43669
Unique aggregates announced from the LACNIC address blocks: 20301
LACNIC Region origin ASes present in the Internet Routing Table: 3519
LACNIC Prefixes per ASN: 12.41
LACNIC Region origin ASes announcing only one prefix: 1335
LACNIC Region transit ASes present in the Internet Routing Table: 725
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 23
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2707
Number of LACNIC addresses announced to Internet: 96636224
Equivalent to 5 /8s, 194 /16s and 141 /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: 10527
Total AfriNIC prefixes after maximum aggregation: 2255
AfriNIC Deaggregation factor: 4.67
Prefixes being announced from the AfriNIC address blocks: 14006
Unique aggregates announced from the AfriNIC address blocks: 4427
AfriNIC Region origin ASes present in the Internet Routing Table: 271
AfriNIC Prefixes per ASN: 51.68
AfriNIC Region origin ASes announcing only one prefix: 111
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: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 147
Number of AfriNIC addresses announced to Internet: 42751488
Equivalent to 2 /8s, 140 /16s and 86 /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 10182 8754 92 CHINAMOBILE-CN China Mobile Communication
56046 1622 811 186 CMNET-JIANGSU-AP China Mobile communicati
56041 1569 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1484 192 53 CMNET-HUNAN-AP China Mobile communication
24547 852 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 771 500 72 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 639 2170 465 SINET-AS Research Organization of Informa
45102 549 851 141 ALIBABA-CN-NET Alibaba US Technology Co.,
24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
17561 476 31 208 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 13277 39710 4106 AMAZON-02, US
22773 3392 3017 179 ASN-CXA-ALL-CCI-22773-RDC, US
749 3254 54879 2505 DNIC-AS-00749, US
4155 2670 203 1627 USDA-1, US
36352 2472 204 1101 AS-COLOCROSSING, US
367 2439 2903 1183 DNIC-ASBLK-00306-00371, US
7018 2118 22900 1555 ATT-INTERNET4, US
11776 1894 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1846 3687 467 CELLCO-PART, US
209 1665 4890 275 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 1239 96 1013 AKAMAI-ASN1, NL
34984 941 94 525 TELLCOM-AS, TR
3257 927 2075 745 GTT-BACKBONE GTT, US
3215 891 4810 292 France Telecom - Orange, FR
25019 856 1303 130 SAUDINETSTC-AS, SA
8452 656 1842 17 TE-AS TE-AS, EG
8376 578 53 23 Jordan Data Communications, JO
51167 568 113 251 CONTABO, DE
212238 565 41 497 CDNEXT, GB
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 7391 2023 1013 UNINET, MX
11830 1993 369 64 Instituto Costarricense de Electricidad y
10620 1929 286 1300 Telmex Colombia S.A., CO
3816 1332 784 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1189 371 21 Telefonica del Peru S.A.A., PE
26615 989 2503 52 TIM SA, BR
18881 883 1127 31 TELEFONICA BRASIL S.A, BR
27651 648 94 35 ENTEL CHILE S.A., CL
28006 643 77 295 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 546 2883 72 TELEFONICA BRASIL S.A, BR
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 1614 389 18 LINKdotNET-AS, EG
20011 980 185 285 INTERNET-SOLUTIONS, ZA
29571 962 100 75 ORANGE-COTE-IVOIRE, CI
24835 879 528 38 RAYA-AS, EG
36935 700 519 48 Vodafone-, EG
36992 604 1228 124 ETISALAT-MISR, EG
37069 559 1078 15 MOBINIL, EG
36914 547 82 3 KENET-AS, KE
36903 410 192 301 MT-MPLS, MA
2018 371 318 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 13277 39710 4106 AMAZON-02, US
9808 10182 8754 92 CHINAMOBILE-CN China Mobile Communication
8151 7391 2023 1013 UNINET, MX
22773 3392 3017 179 ASN-CXA-ALL-CCI-22773-RDC, US
749 3254 54879 2505 DNIC-AS-00749, US
4155 2670 203 1627 USDA-1, US
36352 2472 204 1101 AS-COLOCROSSING, US
367 2439 2903 1183 DNIC-ASBLK-00306-00371, US
7018 2118 22900 1555 ATT-INTERNET4, US
11830 1993 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 10182 10090 CHINAMOBILE-CN China Mobile Communications Grou
8151 7391 6378 UNINET, MX
22773 3392 3213 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1993 1929 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1894 1678 ATLANTICBB-JOHNSTOWN, US
24863 1614 1596 LINKdotNET-AS, EG
56041 1569 1491 CMNET-ZHEJIANG-AP China Mobile communications c
56046 1622 1436 CMNET-JIANGSU-AP China Mobile communications co
56047 1484 1431 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
53966 UNALLOCATED 8.39.98.0/24 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
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
23.158.216.0/24 Origin: 204535 RESERVED, ZZ
23.158.216.0/24 Transit: 22427 GNET-AS, US
23.166.120.0/24 Origin: 59993 UILLLC-20230328, US
23.166.120.0/24 Transit: 30456 COSMIC-GLOBAL, 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 /8:13 /9:10 /10:29 /11:42 /12:153
/13:215 /14:579 /15:1096 /16:7667 /17:3443 /18:4212
/19:7709 /20:12526 /21:15304 /22:27658 /23:27482 /24:153390
/25:60 /26:76 /27:35 /28:13 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3903 7391 UNINET, MX
22773 2532 3392 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2358 13277 AMAZON-02, US
11830 1694 1993 Instituto Costarricense de Electricidad y Telecom., CR
10620 1088 1929 Telmex Colombia S.A., CO
39891 1081 1936 ALJAWWALSTC-AS, SA
36352 997 2472 AS-COLOCROSSING, US
209 964 1665 CENTURYLINK-US-LEGACY-QWEST, US
19901 950 1218 BRSPD-PUBLIC, US
11776 883 1894 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:66 2:467 3:620 4:5 5:826 6:156
7:5 8:636 11:171 12:995 13:300 14:110
15:301 16:244 17:5 18:891 20:172 21:4
22:188 23:2630 24:643 27:21 29:19 31:467
32:9 34:10 35:136 36:1230 37:951 38:1926
39:551 40:62 41:956 42:226 43:191 44:37
45:3540 46:958 47:97 49:18 50:358 51:383
52:1388 54:294 55:1093 56:11 57:16 58:45
59:43 60:16 61:72 62:555 63:767 64:1919
65:1098 66:1565 67:949 68:400 69:1116 70:423
71:204 72:754 74:977 75:427 76:248 77:466
78:326 79:287 80:294 81:366 82:753 83:244
84:369 85:483 86:234 87:242 88:277 89:830
90:105 91:959 92:597 93:455 94:933 95:678
96:289 97:63 98:469 99:163 100:35 101:19
102:380 103:1224 104:1442 105:134 106:16 107:1489
108:544 109:387 110:37 111:1916 112:450 113:34
114:41 115:14 116:57 117:1035 118:62 119:131
120:1171 121:46 122:65 123:72 124:54 125:25
128:467 129:284 130:691 131:885 132:556 133:212
134:488 135:113 136:581 137:503 138:863 139:442
140:705 141:446 142:1025 143:655 144:424 145:111
146:673 147:521 148:863 149:764 150:381 151:641
152:482 153:130 154:1569 155:799 156:1212 157:380
158:536 159:689 160:833 161:700 162:973 163:385
164:719 165:801 166:762 167:614 168:1128 169:150
170:1514 171:121 172:1377 173:846 174:259 175:53
176:872 177:894 178:517 179:688 180:46 181:1738
182:27 183:860 184:482 185:3387 186:2015 187:1364
188:781 189:1702 190:4205 191:412 192:5170 193:1820
194:1222 195:943 196:829 197:1555 198:2703 199:4887
200:3568 201:3258 202:993 203:727 204:2153 205:1936
206:1542 207:1501 208:1403 209:1934 210:310 211:430
212:962 213:880 214:984 215:42 216:2514 217:427
218:515 219:19 220:26 221:305 222:32 223:761
End of report
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