Routing Table Report 08:00 +10GMT Sat 18 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 391671
Prefixes after maximum aggregation: 167873
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 192469
Total ASes present in the Internet Routing Table: 38015
Prefixes per ASN: 10.30
Origin-only ASes present in the Internet Routing Table: 32745
Origin ASes announcing only one prefix: 15531
Transit ASes present in the Internet Routing Table: 5270
Transit-only ASes present in the Internet Routing Table: 128
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: 1123
Unregistered ASNs in the Routing Table: 188
Number of 32-bit ASNs allocated by the RIRs: 2284
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4771
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 230
Number of addresses announced to Internet: 2533801728
Equivalent to 151 /8s, 6 /16s and 191 /24s
Percentage of available address space announced: 68.4
Percentage of allocated address space announced: 68.4
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: 165098
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92614
Total APNIC prefixes after maximum aggregation: 30332
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89927
Unique aggregates announced from the APNIC address blocks: 39209
APNIC Region origin ASes present in the Internet Routing Table: 4605
APNIC Prefixes per ASN: 19.53
APNIC Region origin ASes announcing only one prefix: 1255
APNIC Region transit ASes present in the Internet Routing Table: 705
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: 636023296
Equivalent to 37 /8s, 232 /16s and 242 /24s
Percentage of available APNIC address space announced: 80.7
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: 147153
Total ARIN prefixes after maximum aggregation: 74873
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 119328
Unique aggregates announced from the ARIN address blocks: 49456
ARIN Region origin ASes present in the Internet Routing Table: 14840
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5668
ARIN Region transit ASes present in the Internet Routing Table: 1499
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 805138432
Equivalent to 47 /8s, 253 /16s and 112 /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: 99527
Total RIPE prefixes after maximum aggregation: 52489
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 91201
Unique aggregates announced from the RIPE address blocks: 56035
RIPE Region origin ASes present in the Internet Routing Table: 16313
RIPE Prefixes per ASN: 5.59
RIPE Region origin ASes announcing only one prefix: 8002
RIPE Region transit ASes present in the Internet Routing Table: 2596
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: 501197824
Equivalent to 29 /8s, 223 /16s and 172 /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: 38005
Total LACNIC prefixes after maximum aggregation: 7996
LACNIC Deaggregation factor: 4.75
Prefixes being announced from the LACNIC address blocks: 37819
Unique aggregates announced from the LACNIC address blocks: 19526
LACNIC Region origin ASes present in the Internet Routing Table: 1565
LACNIC Prefixes per ASN: 24.17
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 282
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: 96582144
Equivalent to 5 /8s, 193 /16s and 186 /24s
Percentage of available LACNIC address space announced: 64.0
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: 8885
Total AfriNIC prefixes after maximum aggregation: 2097
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6940
Unique aggregates announced from the AfriNIC address blocks: 2172
AfriNIC Region origin ASes present in the Internet Routing Table: 512
AfriNIC Prefixes per ASN: 13.55
AfriNIC Region origin ASes announcing only one prefix: 161
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: 30951680
Equivalent to 1 /8s, 216 /16s and 73 /24s
Percentage of available AfriNIC address space announced: 46.1
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 677 Korea Telecom (KIX)
17974 1642 501 36 PT Telekomunikasi Indonesia
7545 1640 303 86 TPG Internet Pty Ltd
4755 1533 386 161 TATA Communications formerly
9829 1181 997 29 National Internet Backbone
9583 1124 84 482 Sify Limited
7552 1087 1062 11 Vietel Corporation
24560 1018 385 167 Bharti Airtel Ltd., Telemedia
4808 977 1947 278 CNCGROUP IP network China169
18101 951 131 156 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 3440 3807 202 BellSouth.net Inc.
7029 3421 1040 172 Windstream Communications Inc
18566 2092 382 177 Covad Communications Co.
1785 1871 679 123 PaeTec Communications, Inc.
20115 1626 1550 630 Charter Communications
4323 1605 1060 382 tw telecom holdings, inc.
22773 1526 2910 110 Cox Communications Inc.
30036 1399 248 749 Mediacom Communications Corp
19262 1387 4703 397 Verizon Online LLC
7018 1314 7028 854 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 1663 480 15 Corbina telecom
2118 1399 97 13 EUnet/RELCOM Autonomous Syste
15557 1098 2184 60 NEUF CEGETEL (formerly LDCOM
34984 652 188 172 BILISIM TELEKOM
6830 644 1927 413 UPC Broadband
20940 607 197 472 Akamai Technologies European
12479 601 643 54 France Telecom Espana SA
8551 578 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
31148 538 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 1738 322 176 Types of queries are: POCs, o
28573 1669 1085 65 Types of queries are: POCs, o
8151 1332 2988 337 Uninet S.A. de C.V.
7303 1264 758 183 Telecom Argentina S.A.
26615 865 672 33 Tim Celular S.A.
27947 638 67 108 Telconet S.A
11172 633 107 74 Alestra, S. de R.L. de C.V.
22047 581 322 17 Types of queries are: POCs, o
3816 554 238 91 Types of queries are: POCs, o
7738 550 1050 31 Telecomunicacoes da Bahia S.A
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 1233 958 13 TEDATA
24863 827 155 41 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 278 939 229 The Internet Solution
33776 237 13 14 Starcomms Nigeria Limited
15706 222 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
16637 160 664 85 MTN Network Solutions
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 3440 3807 202 BellSouth.net Inc.
7029 3421 1040 172 Windstream Communications Inc
18566 2092 382 177 Covad Communications Co.
4766 1923 11104 677 Korea Telecom (KIX)
1785 1871 679 123 PaeTec Communications, Inc.
10620 1738 322 176 Types of queries are: POCs, o
28573 1669 1085 65 Types of queries are: POCs, o
8402 1663 480 15 Corbina telecom
17974 1642 501 36 PT Telekomunikasi Indonesia
7545 1640 303 86 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
7029 3421 3249 Windstream Communications Inc
18566 2092 1915 Covad Communications Co.
1785 1871 1748 PaeTec Communications, Inc.
8402 1663 1648 Corbina telecom
17974 1642 1606 PT Telekomunikasi Indonesia
28573 1669 1604 Types of queries are: POCs, o
10620 1738 1562 Types of queries are: POCs, o
7545 1640 1554 TPG Internet Pty Ltd
22773 1526 1416 Cox Communications Inc.
2118 1399 1386 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
23.27.0.0/16 18779 Guru.com
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 /10:27 /11:80 /12:232
/13:458 /14:812 /15:1469 /16:12091 /17:6195 /18:10277
/19:20465 /20:28113 /21:28918 /22:39378 /23:36743 /24:205836
/25:11 /26:20 /27:20 /28:152 /29:137 /30:66
/31:0 /32:139
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3060 3421 Windstream Communications Inc
6389 2109 3440 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
8402 1642 1663 Corbina telecom
10620 1635 1738 Types of queries are: POCs, o
30036 1353 1399 Mediacom Communications Corp
11492 1118 1155 CABLE ONE, INC.
1785 1064 1871 PaeTec Communications, Inc.
15557 1045 1098 NEUF CEGETEL (formerly LDCOM
8452 1043 1233 TEDATA
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:504 2:673 4:14 5:1 6:3 8:384
12:1960 13:1 14:589 15:11 16:3 17:7
20:8 23:135 24:1727 27:1189 31:943 32:60
33:2 34:2 36:9 37:188 38:776 40:115
41:3127 42:96 44:3 46:1298 47:3 49:331
50:501 52:13 54:2 55:11 56:3 57:35
58:920 59:483 60:341 61:1089 62:948 63:2002
64:4125 65:2281 66:4439 67:2034 68:1173 69:3162
70:933 71:412 72:1795 74:2655 75:463 76:320
77:974 78:947 79:481 80:1211 81:878 82:612
83:522 84:587 85:1153 86:749 87:914 88:338
89:1557 90:282 91:4474 92:530 93:1348 94:1380
95:1093 96:413 97:310 98:812 99:38 100:4
101:147 103:790 106:64 107:157 108:168 109:1488
110:699 111:848 112:427 113:525 114:602 115:756
116:850 117:702 118:899 119:1242 120:361 121:658
122:1585 123:1081 124:1297 125:1313 128:504 129:182
130:210 131:585 132:165 133:21 134:224 135:62
136:212 137:179 138:288 139:144 140:457 141:262
142:375 143:398 144:506 145:69 146:478 147:237
148:710 149:301 150:156 151:198 152:445 153:170
154:6 155:408 156:209 157:334 158:160 159:439
160:319 161:227 162:338 163:177 164:527 165:392
166:557 167:458 168:757 169:146 170:838 171:114
172:4 173:1721 174:591 175:421 176:513 177:504
178:1272 180:1178 181:67 182:716 183:280 184:430
185:1 186:2049 187:853 188:1070 189:1175 190:5492
192:5939 193:5533 194:4340 195:3397 196:1252 197:165
198:3573 199:4346 200:5602 201:1738 202:8207 203:8538
204:4292 205:2421 206:2658 207:2709 208:4065 209:3536
210:2690 211:1451 212:2026 213:1839 214:855 215:89
216:5005 217:1489 218:537 219:335 220:1220 221:545
222:296 223:299
End of report