Routing Table Report 08:00 +10GMT Sat 14 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 398899
Prefixes after maximum aggregation: 170216
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 196795
Total ASes present in the Internet Routing Table: 38335
Prefixes per ASN: 10.41
Origin-only ASes present in the Internet Routing Table: 33043
Origin ASes announcing only one prefix: 15625
Transit ASes present in the Internet Routing Table: 5292
Transit-only ASes present in the Internet Routing Table: 129
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1198
Unregistered ASNs in the Routing Table: 219
Number of 32-bit ASNs allocated by the RIRs: 2561
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5460
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 115
Number of addresses announced to Internet: 2554348544
Equivalent to 152 /8s, 64 /16s and 68 /24s
Percentage of available address space announced: 68.9
Percentage of allocated address space announced: 68.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.3
Total number of prefixes smaller than registry allocations: 168593
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93885
Total APNIC prefixes after maximum aggregation: 30824
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91335
Unique aggregates announced from the APNIC address blocks: 39538
APNIC Region origin ASes present in the Internet Routing Table: 4628
APNIC Prefixes per ASN: 19.74
APNIC Region origin ASes announcing only one prefix: 1259
APNIC Region transit ASes present in the Internet Routing Table: 706
Average APNIC Region AS path length visible: 4.0
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: 643102208
Equivalent to 38 /8s, 84 /16s and 246 /24s
Percentage of available APNIC address space announced: 81.6
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 148343
Total ARIN prefixes after maximum aggregation: 75569
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119896
Unique aggregates announced from the ARIN address blocks: 50206
ARIN Region origin ASes present in the Internet Routing Table: 14965
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5717
ARIN Region transit ASes present in the Internet Routing Table: 1510
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 807094528
Equivalent to 48 /8s, 27 /16s and 73 /24s
Percentage of available ARIN address space announced: 64.1
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, 173/8,
174/8, 184/8, 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: 101632
Total RIPE prefixes after maximum aggregation: 53515
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 93594
Unique aggregates announced from the RIPE address blocks: 58034
RIPE Region origin ASes present in the Internet Routing Table: 16472
RIPE Prefixes per ASN: 5.68
RIPE Region origin ASes announcing only one prefix: 8045
RIPE Region transit ASes present in the Internet Routing Table: 2598
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 509304576
Equivalent to 30 /8s, 91 /16s and 95 /24s
Percentage of available RIPE address space announced: 82.0
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 39822
Total LACNIC prefixes after maximum aggregation: 8115
LACNIC Deaggregation factor: 4.91
Prefixes being announced from the LACNIC address blocks: 39831
Unique aggregates announced from the LACNIC address blocks: 20148
LACNIC Region origin ASes present in the Internet Routing Table: 1573
LACNIC Prefixes per ASN: 25.32
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 289
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 99268352
Equivalent to 5 /8s, 234 /16s and 183 /24s
Percentage of available LACNIC address space announced: 65.7
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,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8956
Total AfriNIC prefixes after maximum aggregation: 2124
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 7032
Unique aggregates announced from the AfriNIC address blocks: 2163
AfriNIC Region origin ASes present in the Internet Routing Table: 529
AfriNIC Prefixes per ASN: 13.29
AfriNIC Region origin ASes announcing only one prefix: 164
AfriNIC Region transit ASes present in the Internet Routing Table: 113
Average AfriNIC Region AS path length visible: 3.4
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: 31664128
Equivalent to 1 /8s, 227 /16s and 40 /24s
Percentage of available AfriNIC address space announced: 47.2
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1924 11110 696 Korea Telecom (KIX)
17974 1718 503 63 PT Telekomunikasi Indonesia
7545 1656 301 86 TPG Internet Pty Ltd
4755 1578 387 164 TATA Communications formerly
9583 1242 94 539 Sify Limited
9829 1235 1041 30 National Internet Backbone
7552 1104 1062 11 Vietel Corporation
24560 1021 385 167 Bharti Airtel Ltd., Telemedia
4808 976 1946 285 CNCGROUP IP network China169
18101 948 131 160 Reliance Infocom Ltd Internet
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 3429 3807 196 BellSouth.net Inc.
7029 3421 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
1785 1900 680 129 PaeTec Communications, Inc.
20115 1642 1565 619 Charter Communications
4323 1597 1060 381 tw telecom holdings, inc.
22773 1576 2910 111 Cox Communications Inc.
30036 1428 260 749 Mediacom Communications Corp
7018 1286 9807 835 AT&T Services, Inc.
11492 1184 216 365 CABLE ONE, INC.
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 1588 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
34984 681 188 175 BILISIM TELEKOM
31148 679 37 9 FreeNet ISP
12479 652 660 61 France Telecom Espana SA
6830 640 1943 411 UPC Broadband
20940 625 203 493 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 533 8442 399 Deutsche Telekom AG
8551 505 360 81 Bezeq International
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
10620 1803 326 174 Types of queries are: POCs, o
28573 1776 1107 59 Types of queries are: POCs, o
6503 1522 418 66 Axtel, S.A.B. de C.V.
7303 1357 827 190 Telecom Argentina S.A.
8151 1348 3001 342 Uninet S.A. de C.V.
26615 903 697 32 Tim Celular S.A.
27947 666 74 99 Telconet S.A
11172 639 107 74 Alestra, S. de R.L. de C.V.
22047 582 326 15 Types of queries are: POCs, o
3816 575 242 100 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 1303 958 13 TEDATA
24863 845 274 32 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 197 12 21 Starcomms Nigeria Limited
24835 179 80 8 RAYA Telecom - Egypt
15706 169 32 6 Sudatel Internet Exchange Aut
16637 163 666 86 MTN Network Solutions
29571 161 15 16 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 3429 3807 196 BellSouth.net Inc.
7029 3421 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
4766 1924 11110 696 Korea Telecom (KIX)
1785 1900 680 129 PaeTec Communications, Inc.
10620 1803 326 174 Types of queries are: POCs, o
28573 1776 1107 59 Types of queries are: POCs, o
17974 1718 503 63 PT Telekomunikasi Indonesia
7545 1656 301 86 TPG Internet Pty Ltd
20115 1642 1565 619 Charter Communications
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 3421 3252 Windstream Communications Inc
18566 2092 1913 Covad Communications Co.
1785 1900 1771 PaeTec Communications, Inc.
28573 1776 1717 Types of queries are: POCs, o
17974 1718 1655 PT Telekomunikasi Indonesia
10620 1803 1629 Types of queries are: POCs, o
8402 1588 1572 Corbina telecom
7545 1656 1570 TPG Internet Pty Ltd
22773 1576 1465 Cox Communications Inc.
6503 1522 1456 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.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
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.
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
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
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
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
37.230.96.0/21 35470 XL Network
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 /10:28 /11:81 /12:236
/13:460 /14:830 /15:1479 /16:12156 /17:6254 /18:10415
/19:20621 /20:28699 /21:29539 /22:40008 /23:37462 /24:210053
/25:11 /26:20 /27:19 /28:153 /29:138 /30:68
/31:0 /32:137
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3061 3421 Windstream Communications Inc
6389 2146 3429 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
10620 1695 1803 Types of queries are: POCs, o
8402 1565 1588 Corbina telecom
30036 1374 1428 Mediacom Communications Corp
6503 1281 1522 Axtel, S.A.B. de C.V.
11492 1147 1184 CABLE ONE, INC.
8452 1111 1303 TEDATA
1785 1069 1900 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:530 2:660 4:14 6:3 8:400 12:1968
13:1 14:593 15:12 16:3 17:7 20:8
23:157 24:1763 27:1263 31:1001 32:52 33:1
34:2 36:8 37:343 38:789 40:120 41:3156
42:134 44:3 46:1464 47:3 49:379 50:536
52:13 54:7 55:8 56:3 57:28 58:915
59:511 60:278 61:1158 62:978 63:1986 64:4137
65:2250 66:4483 67:2029 68:1151 69:3153 70:905
71:476 72:1819 74:2595 75:494 76:318 77:960
78:997 79:486 80:1204 81:902 82:666 83:547
84:489 85:1197 86:413 87:928 88:351 89:1631
90:297 91:4721 92:521 93:1357 94:1467 95:1107
96:355 97:318 98:893 99:34 100:7 101:165
103:954 106:104 107:185 108:207 109:1308 110:735
111:915 112:442 113:577 114:616 115:863 116:874
117:698 118:899 119:1179 120:347 121:787 122:1632
123:1087 124:1304 125:1262 128:517 129:184 130:231
131:596 132:165 133:21 134:232 135:62 136:210
137:174 138:355 139:146 140:462 141:243 142:368
143:389 144:509 145:69 146:485 147:278 148:746
149:300 150:152 151:176 152:462 153:172 154:6
155:445 156:212 157:335 158:177 159:450 160:334
161:235 162:349 163:180 164:566 165:394 166:570
167:464 168:810 169:126 170:856 171:127 172:4
173:1719 174:587 175:418 176:484 177:645 178:1334
180:1166 181:73 182:773 183:285 184:456 185:1
186:2187 187:1028 188:1190 189:1789 190:5476 192:5958
193:5553 194:4636 195:3575 196:1261 197:121 198:3582
199:4445 200:5698 201:1921 202:8248 203:8509 204:4254
205:2466 206:2657 207:2708 208:4036 209:3567 210:2678
211:1454 212:2001 213:1907 214:858 215:102 216:5066
217:1539 218:528 219:340 220:1222 221:538 222:294
223:320
End of report
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