The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Wednesday, December 11, 2013

[bgp-stats] Routing Table Report - Washington view

* BGP Routing Table Analysis Reports *
Routing Table Report 09:00 +10GMT Thu 12 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/us/

Analysis Summary
----------------

BGP routing table entries examined: 467345
Prefixes after maximum aggregation: 188667
Deaggregation factor: 2.48
Unique aggregates announced to Internet: 235131
Total ASes present in the Internet Routing Table: 45524
Prefixes per ASN: 10.27
Origin-only ASes present in the Internet Routing Table: 35443
Origin ASes announcing only one prefix: 16278
Transit ASes present in the Internet Routing Table: 5810
Transit-only ASes present in the Internet Routing Table: 149
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 1002
Unregistered ASNs in the Routing Table: 265
Number of 32-bit ASNs allocated by the RIRs: 5487
Number of 32-bit ASNs visible in the Routing Table: 4271
Prefixes from 32-bit ASNs in the Routing Table: 13352
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 1357
Number of addresses announced to Internet: 2654805600
Equivalent to 158 /8s, 61 /16s and 30 /24s
Percentage of available address space announced: 71.7
Percentage of allocated address space announced: 71.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 163056

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 108275
Total APNIC prefixes after maximum aggregation: 33517
APNIC Deaggregation factor: 3.23
Prefixes being announced from the APNIC address blocks: 110526
Unique aggregates announced from the APNIC address blocks: 47847
APNIC Region origin ASes present in the Internet Routing Table: 4838
APNIC Prefixes per ASN: 22.85
APNIC Region origin ASes announcing only one prefix: 1218
APNIC Region transit ASes present in the Internet Routing Table: 817
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 779
Number of APNIC addresses announced to Internet: 726884608
Equivalent to 43 /8s, 83 /16s and 97 /24s
Percentage of available APNIC address space announced: 85.0

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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: 161789
Total ARIN prefixes after maximum aggregation: 81331
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162531
Unique aggregates announced from the ARIN address blocks: 75621
ARIN Region origin ASes present in the Internet Routing Table: 15873
ARIN Prefixes per ASN: 10.24
ARIN Region origin ASes announcing only one prefix: 6001
ARIN Region transit ASes present in the Internet Routing Table: 1617
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 45
Number of ARIN addresses announced to Internet: 1072526592
Equivalent to 63 /8s, 237 /16s and 117 /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, 62464-63487, 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: 119094
Total RIPE prefixes after maximum aggregation: 61170
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122877
Unique aggregates announced from the RIPE address blocks: 79076
RIPE Region origin ASes present in the Internet Routing Table: 17528
RIPE Prefixes per ASN: 7.01
RIPE Region origin ASes announcing only one prefix: 8292
RIPE Region transit ASes present in the Internet Routing Table: 2780
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2515
Number of RIPE addresses announced to Internet: 655825760
Equivalent to 39 /8s, 23 /16s and 27 /24s
Percentage of available RIPE address space announced: 95.3

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, 61952-62463, 196608-200191
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: 52345
Total LACNIC prefixes after maximum aggregation: 9815
LACNIC Deaggregation factor: 5.33
Prefixes being announced from the LACNIC address blocks: 57635
Unique aggregates announced from the LACNIC address blocks: 27312
LACNIC Region origin ASes present in the Internet Routing Table: 2044
LACNIC Prefixes per ASN: 28.20
LACNIC Region origin ASes announcing only one prefix: 559
LACNIC Region transit ASes present in the Internet Routing Table: 384
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 27
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 924
Number of LACNIC addresses announced to Internet: 146449408
Equivalent to 8 /8s, 186 /16s and 164 /24s
Percentage of available LACNIC address space announced: 87.3

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 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: 11787
Total AfriNIC prefixes after maximum aggregation: 2601
AfriNIC Deaggregation factor: 4.53
Prefixes being announced from the AfriNIC address blocks: 12419
Unique aggregates announced from the AfriNIC address blocks: 4210
AfriNIC Region origin ASes present in the Internet Routing Table: 693
AfriNIC Prefixes per ASN: 17.92
AfriNIC Region origin ASes announcing only one prefix: 208
AfriNIC Region transit ASes present in the Internet Routing Table: 141
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8
Number of AfriNIC addresses announced to Internet: 48615936
Equivalent to 2 /8s, 229 /16s and 210 /24s
Percentage of available AfriNIC address space announced: 48.3

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 2726 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2156 11550 652 Korea Telecom (KIX)
7545 2102 319 110 TPG Internet Pty Ltd
4755 1780 391 189 TATA Communications formerly
9829 1527 1250 41 BSNL National Internet Backbo
9583 1418 113 570 Sify Limited
9498 1220 309 72 BHARTI Airtel Ltd.
7552 1171 1080 13 Vietel Corporation
24560 1097 382 167 Bharti Airtel Ltd., Telemedia
4808 1081 2022 310 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3036 3688 53 BellSouth.net Inc.
22773 2304 2939 139 Cox Communications, Inc.
18566 2052 379 178 MegaPath Corporation
1785 2045 686 130 PaeTec Communications, Inc.
20115 1683 1658 598 Charter Communications
4323 1644 1097 416 Time Warner Telecom
701 1505 11144 776 MCI Communications Services,
30036 1380 309 576 Mediacom Communications Corp
7018 1327 17765 868 AT&T WorldNet Services
6983 1293 771 579 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1903 544 16 OJSC "Vimpelcom"
34984 1366 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1176 444 882 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 898 99 42 TOV "Bank-Inform"
6849 855 363 39 JSC UKRTELECOM,
8551 791 370 41 Bezeq International
6830 773 2328 426 UPC Distribution Services
12479 679 798 53 Uni2 Autonomous System
35228 549 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3429 1829 94 NET Servicos de Comunicao S.A
10620 2694 436 199 Telmex Colombia S.A.
7303 1736 1161 231 Telecom Argentina Stet-France
18881 1721 908 20 Global Village Telecom
8151 1355 2853 420 UniNet S.A. de C.V.
11830 868 364 15 Instituto Costarricense de El
27947 828 94 91 Telconet S.A
6147 790 373 27 Telefonica Del Peru
7738 782 1498 36 Telecomunicacoes da Bahia S.A
6503 770 434 61 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 872 338 26 LINKdotNET AS number
6713 592 650 32 Itissalat Al-MAGHRIB
8452 415 956 9 TEDATA
24835 298 144 9 RAYA Telecom - Egypt
29571 249 21 13 Ci Telecom Autonomous system
3741 247 921 209 The Internet Solution
36992 246 525 29 Etisalat MISR
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3429 1829 94 NET Servicos de Comunicao S.A
6389 3036 3688 53 BellSouth.net Inc.
17974 2726 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2694 436 199 Telmex Colombia S.A.
22773 2304 2939 139 Cox Communications, Inc.
4766 2156 11550 652 Korea Telecom (KIX)
7545 2102 319 110 TPG Internet Pty Ltd
18566 2052 379 178 MegaPath Corporation
1785 2045 686 130 PaeTec Communications, Inc.
8402 1903 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/us/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3036 2983 BellSouth.net Inc.
17974 2726 2638 PT TELEKOMUNIKASI INDONESIA
10620 2694 2495 Telmex Colombia S.A.
22773 2304 2165 Cox Communications, Inc.
7545 2102 1992 TPG Internet Pty Ltd
1785 2045 1915 PaeTec Communications, Inc.
8402 1903 1887 OJSC "Vimpelcom"
18566 2052 1874 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
18881 1721 1701 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/us/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
62828 UNALLOCATED 8.21.130.0/24 4323 Time Warner Telecom
62850 UNALLOCATED 8.25.147.0/24 3356 Level 3 Communicatio
62734 UNALLOCATED 8.31.128.0/24 3356 Level 3 Communicatio
62773 UNALLOCATED 8.35.180.0/22 3356 Level 3 Communicatio
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
62719 UNALLOCATED 12.27.130.0/24 4323 Time Warner Telecom
62861 UNALLOCATED 12.37.197.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic

Complete listing at http://thyme.rand.apnic.net/us/data-badAS

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/us/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 /8:16 /9:11 /10:31 /11:92 /12:253
/13:470 /14:922 /15:1614 /16:12777 /17:6686 /18:11077
/19:22895 /20:32764 /21:35488 /22:49528 /23:43469 /24:249125
/25:42 /26:32 /27:17 /28:18 /29:7 /30:2
/31:0 /32:9

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2007 2052 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1700 3036 BellSouth.net Inc.
8402 1608 1903 OJSC "Vimpelcom"
22773 1554 2304 Cox Communications, Inc.
30036 1221 1380 Mediacom Communications Corp
11492 1184 1225 Cable One
1785 1088 2045 PaeTec Communications, Inc.
6983 1034 1293 ITC^Deltacom
22561 966 1242 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/us/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:908 2:846 3:3 4:16 5:813 6:21
8:611 12:1881 13:3 14:872 15:11 16:3
17:19 18:19 20:36 23:615 24:1757 27:1699
31:1519 32:43 33:2 34:5 36:101 37:1946
38:912 39:5 40:181 41:3261 42:230 44:13
46:2087 47:10 49:697 50:861 52:12 54:44
55:7 56:4 57:25 58:1077 59:578 60:368
61:1471 62:1243 63:1972 64:4374 65:2324 66:4141
67:2121 68:1088 69:3282 70:905 71:509 72:2021
74:2571 75:324 76:294 77:1203 78:1023 79:669
80:1286 81:1050 82:631 83:755 84:585 85:1245
86:381 87:1001 88:521 89:1558 90:151 91:5719
92:619 93:1608 94:2105 95:1537 96:518 97:349
98:1075 99:41 100:33 101:443 103:3782 105:531
106:144 107:238 108:519 109:2010 110:956 111:1123
112:584 113:800 114:734 115:998 116:996 117:800
118:1222 119:1268 120:357 121:734 122:1786 123:1241
124:1338 125:1434 128:608 129:217 130:338 131:656
132:348 133:157 134:296 135:72 136:275 137:264
138:351 139:165 140:172 141:329 142:539 143:407
144:498 145:90 146:548 147:419 148:722 149:368
150:149 151:489 152:414 153:207 154:45 155:516
156:303 157:367 158:283 159:697 160:360 161:453
162:908 163:205 164:631 165:573 166:276 167:637
168:1036 169:119 170:1129 171:185 172:11 173:1626
174:661 175:523 176:1321 177:2536 178:1872 179:302
180:1587 181:884 182:1407 183:470 184:620 185:1110
186:2662 187:1474 188:1958 189:1257 190:7238 192:7010
193:5477 194:4029 195:3370 196:1334 197:1062 198:4713
199:5478 200:5983 201:2532 202:8791 203:8844 204:4464
205:2618 206:2798 207:2746 208:3956 209:3647 210:2945
211:1602 212:2176 213:1997 214:889 215:84 216:5404
217:1723 218:628 219:311 220:1265 221:587 222:329
223:531

End of report
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