Routing Table Report 08:00 +10GMT Sun 01 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 397113
Prefixes after maximum aggregation: 169566
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 195752
Total ASes present in the Internet Routing Table: 38231
Prefixes per ASN: 10.39
Origin-only ASes present in the Internet Routing Table: 32972
Origin ASes announcing only one prefix: 15492
Transit ASes present in the Internet Routing Table: 5259
Transit-only ASes present in the Internet Routing Table: 123
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: 1408
Unregistered ASNs in the Routing Table: 357
Number of 32-bit ASNs allocated by the RIRs: 2342
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5282
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 1278
Number of addresses announced to Internet: 2549245696
Equivalent to 151 /8s, 242 /16s and 103 /24s
Percentage of available address space announced: 68.8
Percentage of allocated address space announced: 68.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 167288
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93237
Total APNIC prefixes after maximum aggregation: 30704
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 90652
Unique aggregates announced from the APNIC address blocks: 39278
APNIC Region origin ASes present in the Internet Routing Table: 4635
APNIC Prefixes per ASN: 19.56
APNIC Region origin ASes announcing only one prefix: 1266
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: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 642236416
Equivalent to 38 /8s, 71 /16s and 192 /24s
Percentage of available APNIC address space announced: 81.4
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: 147873
Total ARIN prefixes after maximum aggregation: 75296
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119659
Unique aggregates announced from the ARIN address blocks: 49912
ARIN Region origin ASes present in the Internet Routing Table: 14870
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5675
ARIN Region transit ASes present in the Internet Routing Table: 1506
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: 805158656
Equivalent to 47 /8s, 253 /16s and 191 /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: 101130
Total RIPE prefixes after maximum aggregation: 53167
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 92448
Unique aggregates announced from the RIPE address blocks: 57189
RIPE Region origin ASes present in the Internet Routing Table: 16333
RIPE Prefixes per ASN: 5.66
RIPE Region origin ASes announcing only one prefix: 7953
RIPE Region transit ASes present in the Internet Routing Table: 2584
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 502210048
Equivalent to 29 /8s, 239 /16s and 30 /24s
Percentage of available RIPE address space announced: 80.9
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: 39731
Total LACNIC prefixes after maximum aggregation: 8038
LACNIC Deaggregation factor: 4.94
Prefixes being announced from the LACNIC address blocks: 39453
Unique aggregates announced from the LACNIC address blocks: 19769
LACNIC Region origin ASes present in the Internet Routing Table: 1562
LACNIC Prefixes per ASN: 25.26
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 284
Average LACNIC Region AS path length visible: 3.9
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: 98611968
Equivalent to 5 /8s, 224 /16s and 179 /24s
Percentage of available LACNIC address space announced: 65.3
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: 8827
Total AfriNIC prefixes after maximum aggregation: 2114
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6910
Unique aggregates announced from the AfriNIC address blocks: 2160
AfriNIC Region origin ASes present in the Internet Routing Table: 522
AfriNIC Prefixes per ASN: 13.24
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 113
Average AfriNIC Region AS path length visible: 3.5
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: 31519744
Equivalent to 1 /8s, 224 /16s and 244 /24s
Percentage of available AfriNIC address space announced: 47.0
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 1929 11106 679 Korea Telecom (KIX)
17974 1705 502 62 PT Telekomunikasi Indonesia
7545 1654 301 90 TPG Internet Pty Ltd
4755 1554 385 157 TATA Communications formerly
9583 1241 95 540 Sify Limited
9829 1208 1025 29 National Internet Backbone
7552 1106 1062 11 Vietel Corporation
24560 1019 385 167 Bharti Airtel Ltd., Telemedia
4808 985 1947 284 CNCGROUP IP network China169
18101 951 131 160 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
7029 3409 1016 168 Windstream Communications Inc
6389 3379 3807 197 BellSouth.net Inc.
18566 2093 383 179 Covad Communications Co.
1785 1891 680 128 PaeTec Communications, Inc.
20115 1632 1559 624 Charter Communications
4323 1600 1076 382 tw telecom holdings, inc.
22773 1551 2910 111 Cox Communications Inc.
30036 1416 256 746 Mediacom Communications Corp
7018 1285 9807 836 AT&T Services, Inc.
11492 1184 216 364 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 1698 544 16 Corbina telecom
2118 1394 97 14 EUnet/RELCOM Autonomous Syste
31148 677 37 9 FreeNet ISP
34984 673 188 174 BILISIM TELEKOM
12479 652 658 57 France Telecom Espana SA
6830 641 1943 412 UPC Broadband
20940 632 205 497 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 532 8442 398 Deutsche Telekom AG
8551 504 360 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 1820 331 131 Types of queries are: POCs, o
28573 1744 1105 60 Types of queries are: POCs, o
6503 1492 418 66 Axtel, S.A.B. de C.V.
7303 1353 827 189 Telecom Argentina S.A.
8151 1347 2999 340 Uninet S.A. de C.V.
26615 901 696 31 Tim Celular S.A.
27947 664 74 100 Telconet S.A
11172 638 107 74 Alestra, S. de R.L. de C.V.
22047 584 326 15 Types of queries are: POCs, o
3816 571 242 100 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 1292 958 13 TEDATA
24863 838 274 32 LINKdotNET AS number
6713 493 649 18 Itissalat Al-MAGHRIB
3741 272 924 229 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 182 12 21 Starcomms Nigeria Limited
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 161 664 84 MTN Network Solutions
29571 159 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
7029 3409 1016 168 Windstream Communications Inc
6389 3379 3807 197 BellSouth.net Inc.
18566 2093 383 179 Covad Communications Co.
4766 1929 11106 679 Korea Telecom (KIX)
1785 1891 680 128 PaeTec Communications, Inc.
10620 1820 331 131 Types of queries are: POCs, o
28573 1744 1105 60 Types of queries are: POCs, o
17974 1705 502 62 PT Telekomunikasi Indonesia
8402 1698 544 16 Corbina telecom
7545 1654 301 90 TPG Internet Pty Ltd
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 3379 3182 BellSouth.net Inc.
18566 2093 1914 Covad Communications Co.
1785 1891 1763 PaeTec Communications, Inc.
10620 1820 1689 Types of queries are: POCs, o
28573 1744 1684 Types of queries are: POCs, o
8402 1698 1682 Corbina telecom
17974 1705 1643 PT Telekomunikasi Indonesia
7545 1654 1564 TPG Internet Pty Ltd
22773 1551 1440 Cox Communications Inc.
6503 1492 1426 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
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
54470 UNALLOCATED 8.30.171.0/24 3356 Level 3 Communicatio
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.
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 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
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
/13:457 /14:831 /15:1482 /16:12137 /17:6261 /18:10381
/19:20575 /20:28587 /21:29422 /22:39841 /23:37178 /24:209030
/25:11 /26:21 /27:20 /28:153 /29:142 /30:69
/31:0 /32:138
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3054 3409 Windstream Communications Inc
6389 2095 3379 BellSouth.net Inc.
18566 2042 2093 Covad Communications Co.
10620 1709 1820 Types of queries are: POCs, o
8402 1675 1698 Corbina telecom
30036 1360 1416 Mediacom Communications Corp
6503 1254 1492 Axtel, S.A.B. de C.V.
11492 1147 1184 CABLE ONE, INC.
8452 1101 1292 TEDATA
1785 1067 1891 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:529 2:713 4:14 6:3 8:394 12:1988
13:1 14:600 15:12 16:3 17:7 20:8
23:158 24:1747 27:1250 31:959 32:53 33:2
34:2 36:8 37:315 38:781 40:120 41:3050
42:129 44:3 46:1452 47:3 49:339 50:536
52:13 54:6 55:7 56:3 57:29 58:921
59:486 60:275 61:1093 62:968 63:1989 64:4142
65:2260 66:4485 67:2021 68:1146 69:3180 70:909
71:465 72:1816 74:2576 75:492 76:317 77:953
78:1004 79:493 80:1210 81:899 82:671 83:545
84:517 85:1193 86:416 87:901 88:342 89:1621
90:297 91:4666 92:517 93:1356 94:1477 95:1150
96:372 97:316 98:842 99:37 100:7 101:163
103:913 106:64 107:180 108:217 109:1257 110:740
111:904 112:433 113:578 114:621 115:774 116:886
117:701 118:896 119:1186 120:338 121:673 122:1627
123:1097 124:1299 125:1259 128:522 129:185 130:251
131:593 132:165 133:21 134:231 135:62 136:210
137:173 138:351 139:144 140:356 141:243 142:368
143:395 144:502 145:66 146:479 147:243 148:744
149:297 150:147 151:176 152:457 153:172 154:6
155:444 156:212 157:335 158:176 159:453 160:342
161:230 162:340 163:178 164:551 165:388 166:561
167:464 168:812 169:126 170:839 171:125 172:4
173:1725 174:586 175:425 176:455 177:624 178:1311
180:1187 181:74 182:751 183:277 184:448 185:1
186:2146 187:1025 188:1185 189:1780 190:5543 192:5955
193:5600 194:4604 195:3585 196:1264 197:123 198:3560
199:4439 200:5712 201:1898 202:8205 203:8486 204:4262
205:2455 206:2659 207:2719 208:4042 209:3583 210:2685
211:1443 212:1999 213:1909 214:870 215:108 216:5054
217:1524 218:525 219:317 220:1226 221:539 222:297
223:315
End of report