* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Sat 14 Jul, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 409485
Prefixes after maximum aggregation: 173768
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 202737
Total ASes present in the Internet Routing Table: 38762
Prefixes per ASN: 10.56
Origin-only ASes present in the Internet Routing Table: 33396
Origin ASes announcing only one prefix: 15733
Transit ASes present in the Internet Routing Table: 5366
Transit-only ASes present in the Internet Routing Table: 119
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 30
Max AS path prepend of ASN ( 51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1045
Unregistered ASNs in the Routing Table: 177
Number of 32-bit ASNs allocated by the RIRs: 2974
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 6729
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 170
Number of addresses announced to Internet: 2585060096
Equivalent to 154 /8s, 20 /16s and 227 /24s
Percentage of available address space announced: 69.7
Percentage of allocated address space announced: 69.8
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 93.0
Total number of prefixes smaller than registry allocations: 140927
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95890
Total APNIC prefixes after maximum aggregation: 31217
APNIC Deaggregation factor: 3.07
Prefixes being announced from the APNIC address blocks: 96939
Unique aggregates announced from the APNIC address blocks: 42001
APNIC Region origin ASes present in the Internet Routing Table: 4672
APNIC Prefixes per ASN: 20.75
APNIC Region origin ASes announcing only one prefix: 1276
APNIC Region transit ASes present in the Internet Routing Table: 718
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 702075904
Equivalent to 41 /8s, 216 /16s and 212 /24s
Percentage of available APNIC address space announced: 82.1
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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: 151179
Total ARIN prefixes after maximum aggregation: 77003
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 152153
Unique aggregates announced from the ARIN address blocks: 68399
ARIN Region origin ASes present in the Internet Routing Table: 15133
ARIN Prefixes per ASN: 10.05
ARIN Region origin ASes announcing only one prefix: 5763
ARIN Region transit ASes present in the Internet Routing Table: 1528
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 1071205888
Equivalent to 63 /8s, 217 /16s and 78 /24s
Percentage of available ARIN address space announced: 56.7
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, 393216-394239
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,
53/8, 54/8, 55/8, 56/8, 57/8, 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: 103956
Total RIPE prefixes after maximum aggregation: 55121
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 106115
Unique aggregates announced from the RIPE address blocks: 67130
RIPE Region origin ASes present in the Internet Routing Table: 16651
RIPE Prefixes per ASN: 6.37
RIPE Region origin ASes announcing only one prefix: 8086
RIPE Region transit ASes present in the Internet Routing Table: 2633
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 635735040
Equivalent to 37 /8s, 228 /16s and 140 /24s
Percentage of available RIPE address space announced: 92.4
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, 196608-199679
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
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: 41806
Total LACNIC prefixes after maximum aggregation: 8243
LACNIC Deaggregation factor: 5.07
Prefixes being announced from the LACNIC address blocks: 44471
Unique aggregates announced from the LACNIC address blocks: 21765
LACNIC Region origin ASes present in the Internet Routing Table: 1598
LACNIC Prefixes per ASN: 27.83
LACNIC Region origin ASes announcing only one prefix: 433
LACNIC Region transit ASes present in the Internet Routing Table: 298
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 112223744
Equivalent to 6 /8s, 176 /16s and 102 /24s
Percentage of available LACNIC address space announced: 66.9
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus 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: 9195
Total AfriNIC prefixes after maximum aggregation: 2130
AfriNIC Deaggregation factor: 4.32
Prefixes being announced from the AfriNIC address blocks: 9636
Unique aggregates announced from the AfriNIC address blocks: 3292
AfriNIC Region origin ASes present in the Internet Routing Table: 556
AfriNIC Prefixes per ASN: 17.33
AfriNIC Region origin ASes announcing only one prefix: 175
AfriNIC Region transit ASes present in the Internet Routing Table: 125
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 41219072
Equivalent to 2 /8s, 116 /16s and 244 /24s
Percentage of available AfriNIC address space announced: 40.9
AfriNIC AS Blocks 36864-37887, 327680-328703 & 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
17974 2142 558 80 PT Telekomunikasi Indonesia
4766 2001 11108 770 Korea Telecom (KIX)
7545 1687 301 87 TPG Internet Pty Ltd
4755 1595 387 160 TATA Communications formerly
9829 1303 1085 28 National Internet Backbone
9583 1168 88 506 Sify Limited
7552 1079 1062 11 Vietel Corporation
24560 1036 385 165 Bharti Airtel Ltd., Telemedia
9498 982 291 68 BHARTI Airtel Ltd.
4808 963 1942 288 CNCGROUP IP network China169
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3389 3773 187 BellSouth.net Inc.
7029 3320 986 161 Windstream Communications Inc
18566 2089 382 181 Covad Communications Co.
1785 1937 681 132 PaeTec Communications, Inc.
22773 1663 2911 121 Cox Communications Inc.
20115 1649 1571 615 Charter Communications
4323 1572 1059 383 tw telecom holdings, inc.
30036 1387 268 784 Mediacom Communications Corp
7018 1264 10077 830 AT&T Services, Inc.
7011 1197 320 696 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1512 544 16 Corbina telecom
2118 1023 97 14 EUnet/RELCOM Autonomous Syste
12479 796 741 94 France Telecom Espana SA
34984 728 189 174 BILISIM TELEKOM
6830 708 2292 442 UPC Broadband
31148 704 37 9 FreeNet ISP
20940 667 219 528 Akamai Technologies European
8551 600 364 61 Bezeq International
13188 576 100 10 Ukraine
9116 511 326 31 Goldenlines main autonomous s
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
28573 2004 1214 55 Types of queries are: POCs, o
10620 1991 346 208 Types of queries are: POCs, o
6503 1514 418 68 Axtel, S.A.B. de C.V.
7303 1454 934 194 Telecom Argentina S.A.
8151 1326 3025 341 Uninet S.A. de C.V.
6458 853 81 15 Telgua
27947 691 74 88 Telconet S.A
11172 645 107 75 Alestra, S. de R.L. de C.V.
3816 591 246 90 Types of queries are: POCs, o
22047 583 326 15 Types of queries are: POCs, o
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1156 958 13 TEDATA
24863 863 274 32 LINKdotNET AS number
6713 508 649 18 Itissalat Al-MAGHRIB
24835 285 80 8 RAYA Telecom - Egypt
3741 262 905 223 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 194 12 18 Starcomms Nigeria Limited
29975 191 667 21 Vodacom
15706 159 32 6 Sudatel Internet Exchange Aut
29571 159 15 15 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3389 3773 187 BellSouth.net Inc.
7029 3320 986 161 Windstream Communications Inc
17974 2142 558 80 PT Telekomunikasi Indonesia
18566 2089 382 181 Covad Communications Co.
28573 2004 1214 55 Types of queries are: POCs, o
4766 2001 11108 770 Korea Telecom (KIX)
10620 1991 346 208 Types of queries are: POCs, o
1785 1937 681 132 PaeTec Communications, Inc.
7545 1687 301 87 TPG Internet Pty Ltd
22773 1663 2911 121 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3320 3159 Windstream Communications Inc
17974 2142 2062 PT Telekomunikasi Indonesia
28573 2004 1949 Types of queries are: POCs, o
18566 2089 1908 Covad Communications Co.
1785 1937 1805 PaeTec Communications, Inc.
10620 1991 1783 Types of queries are: POCs, o
7545 1687 1600 TPG Internet Pty Ltd
22773 1663 1542 Cox Communications Inc.
8402 1512 1496 Corbina telecom
6503 1514 1446 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
19577 UNALLOCATED 12.41.188.0/24 7832 WW/Precision Communi
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.144.160.0/20 12637 Seeweb Srl
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
27.112.114.0/24 23884 Proimage Engineering and Comm
Complete listing at http://thyme.rand.apnic.net/london/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 /8:20 /9:12 /10:29 /11:82 /12:236
/13:469 /14:841 /15:1513 /16:12238 /17:6358 /18:10684
/19:20740 /20:29640 /21:31209 /22:40669 /23:38855 /24:215315
/25:11 /26:22 /27:19 /28:150 /29:150 /30:83
/31:0 /32:140
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2675 3320 Windstream Communications Inc
18566 2039 2089 Covad Communications Co.
6389 1868 3389 BellSouth.net Inc.
30036 1322 1387 Mediacom Communications Corp
8402 1210 1512 Corbina telecom
11492 1154 1191 CABLE ONE, INC.
22773 1094 1663 Cox Communications Inc.
6503 1047 1514 Axtel, S.A.B. de C.V.
1785 1044 1937 PaeTec Communications, Inc.
7011 934 1197 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:532 2:668 3:1 4:13 5:128 6:3
8:433 12:1976 13:1 14:615 15:12 16:3
17:5 20:24 23:187 24:1788 27:1318 31:1033
32:51 33:2 34:2 36:8 37:615 38:817
39:1 40:128 41:3020 42:141 44:3 46:1525
47:2 49:430 50:548 52:13 54:14 55:7
56:1 57:31 58:918 59:524 60:241 61:1228
62:927 63:2032 64:4228 65:2233 66:4487 67:2009
68:1155 69:3193 70:981 71:512 72:1868 74:2601
75:479 76:334 77:924 78:904 79:492 80:1223
81:945 82:657 83:525 84:500 85:1147 86:431
87:933 88:358 89:1686 90:301 91:5021 92:577
93:1301 94:1563 95:1202 96:369 97:321 98:887
99:36 100:20 101:251 103:1218 106:115 107:189
108:353 109:1462 110:769 111:935 112:420 113:637
114:647 115:897 116:885 117:708 118:903 119:1159
120:339 121:783 122:1627 123:1160 124:1310 125:1254
128:516 129:180 130:253 131:627 132:294 133:22
134:236 135:61 136:217 137:234 138:334 139:174
140:466 141:243 142:412 143:368 144:472 145:77
146:513 147:281 148:746 149:316 150:144 151:185
152:474 153:176 154:16 155:449 156:220 157:337
158:190 159:547 160:341 161:251 162:379 163:181
164:657 165:406 166:589 167:533 168:909 169:124
170:894 171:146 172:5 173:1725 174:607 175:413
176:557 177:952 178:1620 180:1278 181:104 182:963
183:228 184:538 186:1981 187:1091 188:1367 189:1589
190:6038 192:5972 193:5530 194:4475 195:3223 196:1210
197:170 198:3635 199:4819 200:5854 201:1987 202:8433
203:8564 204:4308 205:2509 206:2705 207:2716 208:4037
209:3612 210:2722 211:1537 212:1981 213:1824 214:865
215:82 216:5075 217:1553 218:542 219:322 220:1224
221:551 222:300 223:339
End of report
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