Routing Table Report 08:00 +10GMT Tue 28 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 392391
Prefixes after maximum aggregation: 168198
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 193662
Total ASes present in the Internet Routing Table: 38071
Prefixes per ASN: 10.31
Origin-only ASes present in the Internet Routing Table: 32793
Origin ASes announcing only one prefix: 15552
Transit ASes present in the Internet Routing Table: 5278
Transit-only ASes present in the Internet Routing Table: 132
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1134
Unregistered ASNs in the Routing Table: 197
Number of 32-bit ASNs allocated by the RIRs: 2297
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4825
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 363
Number of addresses announced to Internet: 2539521280
Equivalent to 151 /8s, 94 /16s and 5 /24s
Percentage of available address space announced: 68.5
Percentage of allocated address space announced: 68.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 165290
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92838
Total APNIC prefixes after maximum aggregation: 30429
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 90177
Unique aggregates announced from the APNIC address blocks: 39380
APNIC Region origin ASes present in the Internet Routing Table: 4613
APNIC Prefixes per ASN: 19.55
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 704
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 639899904
Equivalent to 38 /8s, 36 /16s and 25 /24s
Percentage of available APNIC address space announced: 81.2
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: 147237
Total ARIN prefixes after maximum aggregation: 74908
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 119281
Unique aggregates announced from the ARIN address blocks: 49587
ARIN Region origin ASes present in the Internet Routing Table: 14863
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5678
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: 805437440
Equivalent to 48 /8s, 2 /16s and 0 /24s
Percentage of available ARIN address space announced: 64.0
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: 99940
Total RIPE prefixes after maximum aggregation: 52687
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 91598
Unique aggregates announced from the RIPE address blocks: 56729
RIPE Region origin ASes present in the Internet Routing Table: 16326
RIPE Prefixes per ASN: 5.61
RIPE Region origin ASes announcing only one prefix: 8011
RIPE Region transit ASes present in the Internet Routing Table: 2587
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 501106944
Equivalent to 29 /8s, 222 /16s and 73 /24s
Percentage of available RIPE address space announced: 80.7
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: 38095
Total LACNIC prefixes after maximum aggregation: 7999
LACNIC Deaggregation factor: 4.76
Prefixes being announced from the LACNIC address blocks: 37906
Unique aggregates announced from the LACNIC address blocks: 19588
LACNIC Region origin ASes present in the Internet Routing Table: 1568
LACNIC Prefixes per ASN: 24.17
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 280
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: 97356032
Equivalent to 5 /8s, 205 /16s and 137 /24s
Percentage of available LACNIC address space announced: 64.5
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: 8720
Total AfriNIC prefixes after maximum aggregation: 2079
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6742
Unique aggregates announced from the AfriNIC address blocks: 2114
AfriNIC Region origin ASes present in the Internet Routing Table: 509
AfriNIC Prefixes per ASN: 13.25
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 117
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: 31487744
Equivalent to 1 /8s, 224 /16s and 119 /24s
Percentage of available AfriNIC address space announced: 46.9
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 1923 11104 679 Korea Telecom (KIX)
17974 1649 503 36 PT Telekomunikasi Indonesia
7545 1639 303 87 TPG Internet Pty Ltd
4755 1544 386 160 TATA Communications formerly
9829 1182 997 29 National Internet Backbone
9583 1131 84 482 Sify Limited
7552 1101 1062 11 Vietel Corporation
24560 1009 385 167 Bharti Airtel Ltd., Telemedia
4808 978 1946 279 CNCGROUP IP network China169
18101 950 130 155 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
7029 3450 1040 172 Windstream Communications Inc
6389 3433 3807 200 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
1785 1875 680 125 PaeTec Communications, Inc.
20115 1628 1551 630 Charter Communications
4323 1608 1075 383 tw telecom holdings, inc.
22773 1535 2910 110 Cox Communications Inc.
30036 1404 251 743 Mediacom Communications Corp
19262 1388 4703 398 Verizon Online LLC
7018 1313 6996 855 AT&T Services, 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 1612 480 15 Corbina telecom
2118 1398 97 13 EUnet/RELCOM Autonomous Syste
15557 1099 2184 60 NEUF CEGETEL (formerly LDCOM
34984 655 188 172 BILISIM TELEKOM
6830 644 1927 413 UPC Broadband
20940 619 202 480 Akamai Technologies European
12479 606 644 55 France Telecom Espana SA
8551 600 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
31148 541 37 9 FreeNet ISP
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 1755 324 173 Types of queries are: POCs, o
28573 1688 1088 63 Types of queries are: POCs, o
8151 1344 2992 347 Uninet S.A. de C.V.
7303 1328 822 186 Telecom Argentina S.A.
26615 896 664 33 Tim Celular S.A.
27947 639 67 108 Telconet S.A
11172 634 107 73 Alestra, S. de R.L. de C.V.
22047 581 322 17 Types of queries are: POCs, o
6503 565 418 67 Axtel, S.A.B. de C.V.
3816 550 238 93 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 1256 958 13 TEDATA
24863 830 274 34 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited
33776 156 12 23 Starcomms Nigeria Limited
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
7029 3450 1040 172 Windstream Communications Inc
6389 3433 3807 200 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
4766 1923 11104 679 Korea Telecom (KIX)
1785 1875 680 125 PaeTec Communications, Inc.
10620 1755 324 173 Types of queries are: POCs, o
28573 1688 1088 63 Types of queries are: POCs, o
17974 1649 503 36 PT Telekomunikasi Indonesia
7545 1639 303 87 TPG Internet Pty Ltd
20115 1628 1551 630 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
6389 3433 3233 BellSouth.net Inc.
18566 2092 1915 Covad Communications Co.
1785 1875 1750 PaeTec Communications, Inc.
28573 1688 1625 Types of queries are: POCs, o
17974 1649 1613 PT Telekomunikasi Indonesia
8402 1612 1597 Corbina telecom
10620 1755 1582 Types of queries are: POCs, o
7545 1639 1552 TPG Internet Pty Ltd
22773 1535 1425 Cox Communications Inc.
2118 1398 1385 EUnet/RELCOM Autonomous Syste
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
23.27.0.0/20 18779 Guru.com
23.27.0.0/16 18779 Guru.com
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 /12:233
/13:459 /14:814 /15:1471 /16:12111 /17:6196 /18:10329
/19:20500 /20:28313 /21:29011 /22:39338 /23:36806 /24:206116
/25:11 /26:21 /27:20 /28:154 /29:138 /30:66
/31:0 /32:143
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3087 3450 Windstream Communications Inc
6389 2106 3433 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
10620 1652 1755 Types of queries are: POCs, o
8402 1591 1612 Corbina telecom
30036 1354 1404 Mediacom Communications Corp
11492 1122 1159 CABLE ONE, INC.
1785 1064 1875 PaeTec Communications, Inc.
8452 1064 1256 TEDATA
15557 1046 1099 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:511 2:656 4:14 6:3 8:389 12:1964
13:1 14:599 15:11 16:3 17:7 20:8
23:134 24:1731 27:1196 31:943 32:60 33:2
34:2 36:9 37:208 38:775 40:116 41:2969
42:114 44:3 46:1352 47:3 49:334 50:511
52:13 54:3 55:7 56:3 57:35 58:922
59:483 60:343 61:1086 62:961 63:2004 64:4097
65:2276 66:4457 67:2031 68:1171 69:3166 70:908
71:408 72:1787 74:2644 75:470 76:319 77:965
78:958 79:483 80:1213 81:878 82:633 83:539
84:589 85:1161 86:735 87:914 88:332 89:1561
90:284 91:4517 92:511 93:1371 94:1387 95:1080
96:417 97:312 98:823 99:38 100:4 101:150
103:825 106:65 107:162 108:177 109:1540 110:723
111:855 112:425 113:535 114:602 115:776 116:858
117:703 118:903 119:1243 120:361 121:661 122:1590
123:1080 124:1303 125:1320 128:490 129:182 130:221
131:588 132:163 133:21 134:224 135:62 136:212
137:181 138:268 139:144 140:466 141:261 142:376
143:407 144:511 145:69 146:480 147:241 148:712
149:299 150:155 151:198 152:446 153:171 154:6
155:415 156:210 157:337 158:164 159:441 160:319
161:227 162:339 163:178 164:527 165:394 166:558
167:458 168:754 169:147 170:838 171:119 172:4
173:1723 174:605 175:421 176:506 177:512 178:1282
180:1179 181:68 182:729 183:283 184:434 185:1
186:2056 187:861 188:1082 189:1204 190:5437 192:5947
193:5555 194:4341 195:3392 196:1269 197:165 198:3574
199:4378 200:5547 201:1737 202:8176 203:8573 204:4289
205:2418 206:2656 207:2717 208:4052 209:3526 210:2692
211:1450 212:2029 213:1838 214:824 215:90 216:4997
217:1506 218:535 219:327 220:1224 221:546 222:297
223:299
End of report